diff --git a/src/sentry/integrations/bitbucket/integration.py b/src/sentry/integrations/bitbucket/integration.py
index 757f717cab3593..5e2eedaac5d88c 100644
--- a/src/sentry/integrations/bitbucket/integration.py
+++ b/src/sentry/integrations/bitbucket/integration.py
@@ -1,6 +1,7 @@
 from __future__ import annotations
 
 from collections.abc import Mapping, Sequence
+from itertools import chain
 from typing import Any
 
 from django.http.request import HttpRequest
@@ -20,7 +21,10 @@
 from sentry.integrations.models.integration import Integration
 from sentry.integrations.pipeline import IntegrationPipeline
 from sentry.integrations.services.repository import RpcRepository, repository_service
-from sentry.integrations.source_code_management.repository import RepositoryIntegration
+from sentry.integrations.source_code_management.repository import (
+    RepositoryInfo,
+    RepositoryIntegration,
+)
 from sentry.integrations.tasks.migrate_repo import migrate_repo
 from sentry.integrations.types import IntegrationProviderSlug
 from sentry.integrations.utils.atlassian_connect import (
@@ -103,14 +107,14 @@
 scopes = ("issue:write", "pullrequest", "webhook", "repository")
 
 
-class BitbucketIntegration(RepositoryIntegration, BitbucketIssuesSpec):
+class BitbucketIntegration(RepositoryIntegration[BitbucketApiClient], BitbucketIssuesSpec):
     codeowners_locations = [".bitbucket/CODEOWNERS"]
 
     @property
     def integration_name(self) -> str:
         return IntegrationProviderSlug.BITBUCKET.value
 
-    def get_client(self):
+    def get_client(self) -> BitbucketApiClient:
         return BitbucketApiClient(integration=self.model)
 
     # IntegrationInstallation methods
@@ -120,34 +124,50 @@ def error_message_from_json(self, data):
 
     # RepositoryIntegration methods
 
+    def get_repo_external_id(self, repo: Mapping[str, Any]) -> str:
+        return str(repo["uuid"])
+
     def get_repositories(
         self,
         query: str | None = None,
         page_number_limit: int | None = None,
         accessible_only: bool = False,
-    ) -> list[dict[str, Any]]:
+    ) -> list[RepositoryInfo]:
         username = self.model.metadata.get("uuid", self.username)
         if not query:
             resp = self.get_client().get_repos(username)
             return [
-                {"identifier": repo["full_name"], "name": repo["full_name"]}
+                {
+                    "identifier": repo["full_name"],
+                    "name": repo["full_name"],
+                    "external_id": self.get_repo_external_id(repo),
+                }
                 for repo in resp.get("values", [])
             ]
 
+        client = self.get_client()
         exact_query = f'name="{query}"'
         fuzzy_query = f'name~"{query}"'
-        exact_search_resp = self.get_client().search_repositories(username, exact_query)
-        fuzzy_search_resp = self.get_client().search_repositories(username, fuzzy_query)
-
-        result: OrderedSet[str] = OrderedSet()
-
-        for j in exact_search_resp.get("values", []):
-            result.add(j["full_name"])
-
-        for i in fuzzy_search_resp.get("values", []):
-            result.add(i["full_name"])
+        exact_search_resp = client.search_repositories(username, exact_query)
+        fuzzy_search_resp = client.search_repositories(username, fuzzy_query)
+
+        seen: OrderedSet[str] = OrderedSet()
+        repos: list[RepositoryInfo] = []
+        for repo in chain(
+            exact_search_resp.get("values", []),
+            fuzzy_search_resp.get("values", []),
+        ):
+            if repo["full_name"] not in seen:
+                seen.add(repo["full_name"])
+                repos.append(
+                    {
+                        "identifier": repo["full_name"],
+                        "name": repo["full_name"],
+                        "external_id": self.get_repo_external_id(repo),
+                    }
+                )
 
-        return [{"identifier": full_name, "name": full_name} for full_name in result]
+        return repos
 
     def has_repo_access(self, repo: RpcRepository) -> bool:
         client = self.get_client()
diff --git a/src/sentry/integrations/bitbucket/repository.py b/src/sentry/integrations/bitbucket/repository.py
index 17610a849ad399..4ea343d914fed4 100644
--- a/src/sentry/integrations/bitbucket/repository.py
+++ b/src/sentry/integrations/bitbucket/repository.py
@@ -1,5 +1,7 @@
+from __future__ import annotations
+
 from collections.abc import Mapping
-from typing import Any
+from typing import TYPE_CHECKING, Any
 
 from sentry.integrations.types import IntegrationProviderSlug
 from sentry.locks import locks
@@ -12,8 +14,11 @@
 from sentry.utils.email import parse_email, parse_user_name
 from sentry.utils.http import absolute_uri
 
+if TYPE_CHECKING:
+    from sentry.integrations.bitbucket.integration import BitbucketIntegration  # NOQA
+
 
-class BitbucketRepositoryProvider(IntegrationRepositoryProvider):
+class BitbucketRepositoryProvider(IntegrationRepositoryProvider["BitbucketIntegration"]):
     name = "Bitbucket"
     repo_provider = IntegrationProviderSlug.BITBUCKET.value
 
@@ -25,7 +30,7 @@ def get_repository_data(self, organization, config):
         except Exception as e:
             installation.raise_error(e)
         else:
-            config["external_id"] = str(repo["uuid"])
+            config["external_id"] = installation.get_repo_external_id(repo)
             config["name"] = repo["full_name"]
         return config
 
diff --git a/src/sentry/integrations/bitbucket_server/integration.py b/src/sentry/integrations/bitbucket_server/integration.py
index 8dbf0fa288471c..6d3dc20c34c1b6 100644
--- a/src/sentry/integrations/bitbucket_server/integration.py
+++ b/src/sentry/integrations/bitbucket_server/integration.py
@@ -27,7 +27,10 @@
 from sentry.integrations.pipeline import IntegrationPipeline
 from sentry.integrations.services.repository import repository_service
 from sentry.integrations.services.repository.model import RpcRepository
-from sentry.integrations.source_code_management.repository import RepositoryIntegration
+from sentry.integrations.source_code_management.repository import (
+    RepositoryInfo,
+    RepositoryIntegration,
+)
 from sentry.integrations.tasks.migrate_repo import migrate_repo
 from sentry.integrations.types import IntegrationProviderSlug
 from sentry.integrations.utils.metrics import (
@@ -253,7 +256,7 @@ def dispatch(self, request: HttpRequest, pipeline: IntegrationPipeline) -> HttpR
                 )
 
 
-class BitbucketServerIntegration(RepositoryIntegration):
+class BitbucketServerIntegration(RepositoryIntegration[BitbucketServerClient]):
     """
     IntegrationInstallation implementation for Bitbucket Server
     """
@@ -285,13 +288,14 @@ def get_repositories(
         query: str | None = None,
         page_number_limit: int | None = None,
         accessible_only: bool = False,
-    ) -> list[dict[str, Any]]:
+    ) -> list[RepositoryInfo]:
         if not query:
             resp = self.get_client().get_repos()
 
             return [
                 {
                     "identifier": repo["project"]["key"] + "/" + repo["slug"],
+                    "external_id": self.get_repo_external_id(repo),
                     "project": repo["project"]["key"],
                     "repo": repo["slug"],
                     "name": repo["project"]["name"] + "/" + repo["name"],
@@ -304,6 +308,7 @@ def get_repositories(
         return [
             {
                 "identifier": repo["project"]["key"] + "/" + repo["slug"],
+                "external_id": self.get_repo_external_id(repo),
                 "project": repo["project"]["key"],
                 "repo": repo["slug"],
                 "name": repo["project"]["name"] + "/" + repo["name"],
diff --git a/src/sentry/integrations/bitbucket_server/repository.py b/src/sentry/integrations/bitbucket_server/repository.py
index 528e2bd6bd9466..13d15d84e9e113 100644
--- a/src/sentry/integrations/bitbucket_server/repository.py
+++ b/src/sentry/integrations/bitbucket_server/repository.py
@@ -1,6 +1,8 @@
+from __future__ import annotations
+
 from collections.abc import Mapping
 from datetime import datetime, timezone
-from typing import Any
+from typing import TYPE_CHECKING, Any
 
 from django.core.cache import cache
 from django.urls import reverse
@@ -15,8 +17,13 @@
 from sentry.utils.hashlib import md5_text
 from sentry.utils.http import absolute_uri
 
+if TYPE_CHECKING:
+    from sentry.integrations.bitbucket_server.integration import BitbucketServerIntegration  # NOQA
+
 
-class BitbucketServerRepositoryProvider(IntegrationRepositoryProvider):
+class BitbucketServerRepositoryProvider(
+    IntegrationRepositoryProvider["BitbucketServerIntegration"]
+):
     name = "Bitbucket Server"
     repo_provider = IntegrationProviderSlug.BITBUCKET_SERVER.value
 
@@ -29,7 +36,7 @@ def get_repository_data(self, organization, config):
         except Exception as e:
             installation.raise_error(e)
         else:
-            config["external_id"] = str(repo["id"])
+            config["external_id"] = installation.get_repo_external_id(repo)
             config["name"] = repo["project"]["key"] + "/" + repo["name"]
             config["project"] = repo["project"]["key"]
             config["repo"] = repo["name"]
diff --git a/src/sentry/integrations/example/integration.py b/src/sentry/integrations/example/integration.py
index 2dc18b17334ec7..7c2a8c4461cd26 100644
--- a/src/sentry/integrations/example/integration.py
+++ b/src/sentry/integrations/example/integration.py
@@ -22,7 +22,10 @@
 from sentry.integrations.services.integration.serial import serialize_integration
 from sentry.integrations.services.repository.model import RpcRepository
 from sentry.integrations.source_code_management.issues import SourceCodeIssueIntegration
-from sentry.integrations.source_code_management.repository import RepositoryIntegration
+from sentry.integrations.source_code_management.repository import (
+    RepositoryInfo,
+    RepositoryIntegration,
+)
 from sentry.models.repository import Repository
 from sentry.organizations.services.organization.model import RpcOrganization
 from sentry.pipeline.views.base import PipelineView
@@ -151,8 +154,8 @@ def get_repositories(
         query: str | None = None,
         page_number_limit: int | None = None,
         accessible_only: bool = False,
-    ) -> list[dict[str, Any]]:
-        return [{"name": "repo", "identifier": "user/repo"}]
+    ) -> list[RepositoryInfo]:
+        return [{"name": "repo", "identifier": "user/repo", "external_id": "1"}]
 
     def get_unmigratable_repositories(self):
         return []
diff --git a/src/sentry/integrations/github/integration.py b/src/sentry/integrations/github/integration.py
index 88086dee4c34c8..7fb151b633cb12 100644
--- a/src/sentry/integrations/github/integration.py
+++ b/src/sentry/integrations/github/integration.py
@@ -47,7 +47,10 @@
     PRCommentWorkflow,
 )
 from sentry.integrations.source_code_management.repo_trees import RepoTreesIntegration
-from sentry.integrations.source_code_management.repository import RepositoryIntegration
+from sentry.integrations.source_code_management.repository import (
+    RepositoryInfo,
+    RepositoryIntegration,
+)
 from sentry.integrations.tasks.migrate_repo import migrate_repo
 from sentry.integrations.types import IntegrationProviderSlug
 from sentry.integrations.utils.metrics import (
@@ -237,7 +240,7 @@ def get_document_origin(org) -> str:
 
 
 class GitHubIntegration(
-    RepositoryIntegration,
+    RepositoryIntegration[GitHubBaseClient],
     GitHubIssuesSpec,
     GitHubIssueSyncSpec,
     CommitContextIntegration,
@@ -322,7 +325,7 @@ def get_repositories(
         query: str | None = None,
         page_number_limit: int | None = None,
         accessible_only: bool = False,
-    ) -> list[dict[str, Any]]:
+    ) -> list[RepositoryInfo]:
         """
         args:
         * query - a query to filter the repositories by
@@ -335,10 +338,11 @@ def get_repositories(
         """
         if not query or accessible_only:
             all_repos = self.get_client().get_repos(page_number_limit=page_number_limit)
-            repos = [
+            repos: list[RepositoryInfo] = [
                 {
                     "name": i["name"],
                     "identifier": i["full_name"],
+                    "external_id": self.get_repo_external_id(i),
                     "default_branch": i.get("default_branch"),
                 }
                 for i in all_repos
@@ -346,19 +350,21 @@ def get_repositories(
             ]
             if query:
                 query_lower = query.lower()
-                repos = [r for r in repos if query_lower in r["identifier"].lower()]
+                repos = [r for r in repos if query_lower in str(r["identifier"]).lower()]
             return repos
 
         full_query = build_repository_query(self.model.metadata, self.model.name, query)
         response = self.get_client().search_repositories(full_query)
-        return [
+        search_repos: list[RepositoryInfo] = [
             {
                 "name": i["name"],
                 "identifier": i["full_name"],
+                "external_id": self.get_repo_external_id(i),
                 "default_branch": i.get("default_branch"),
             }
             for i in response.get("items", [])
         ]
+        return search_repos
 
     def get_unmigratable_repositories(self) -> list[RpcRepository]:
         accessible_repos = self.get_repositories()
diff --git a/src/sentry/integrations/github/repository.py b/src/sentry/integrations/github/repository.py
index 766c1e03a8a4d7..408eabde4ac5b6 100644
--- a/src/sentry/integrations/github/repository.py
+++ b/src/sentry/integrations/github/repository.py
@@ -1,7 +1,7 @@
 from __future__ import annotations
 
 from collections.abc import Mapping, MutableMapping, Sequence
-from typing import Any
+from typing import TYPE_CHECKING, Any
 
 from sentry.constants import ObjectStatus
 from sentry.integrations.base import IntegrationInstallation
@@ -15,10 +15,13 @@
 from sentry.plugins.providers.integration_repository import RepositoryConfig
 from sentry.shared_integrations.exceptions import ApiError, IntegrationError
 
+if TYPE_CHECKING:
+    from sentry.integrations.github.integration import GitHubIntegration  # NOQA
+
 WEBHOOK_EVENTS = ["push", "pull_request"]
 
 
-class GitHubRepositoryProvider(IntegrationRepositoryProvider):
+class GitHubRepositoryProvider(IntegrationRepositoryProvider["GitHubIntegration"]):
     name = "GitHub"
     repo_provider = IntegrationProviderSlug.GITHUB.value
 
@@ -46,7 +49,7 @@ def get_repository_data(
         client = installation.get_client()
 
         repo = self._validate_repo(client, installation, config["identifier"])
-        config["external_id"] = str(repo["id"])
+        config["external_id"] = installation.get_repo_external_id(repo)
         config["integration_id"] = installation.model.id
 
         return config
diff --git a/src/sentry/integrations/github_enterprise/integration.py b/src/sentry/integrations/github_enterprise/integration.py
index 5981801345dcd7..84ae6d7576afa0 100644
--- a/src/sentry/integrations/github_enterprise/integration.py
+++ b/src/sentry/integrations/github_enterprise/integration.py
@@ -37,7 +37,10 @@
 from sentry.integrations.services.integration import integration_service
 from sentry.integrations.services.repository import RpcRepository
 from sentry.integrations.source_code_management.commit_context import CommitContextIntegration
-from sentry.integrations.source_code_management.repository import RepositoryIntegration
+from sentry.integrations.source_code_management.repository import (
+    RepositoryInfo,
+    RepositoryIntegration,
+)
 from sentry.integrations.types import IntegrationProviderSlug
 from sentry.models.repository import Repository
 from sentry.organizations.services.organization import organization_service
@@ -173,7 +176,10 @@ def get_user_info(url, access_token):
 
 
 class GitHubEnterpriseIntegration(
-    RepositoryIntegration, GitHubIssuesSpec, GitHubIssueSyncSpec, CommitContextIntegration
+    RepositoryIntegration[GitHubEnterpriseApiClient],
+    GitHubIssuesSpec,
+    GitHubIssueSyncSpec,
+    CommitContextIntegration,
 ):
     codeowners_locations = ["CODEOWNERS", ".github/CODEOWNERS", "docs/CODEOWNERS"]
 
@@ -220,13 +226,14 @@ def get_repositories(
         query: str | None = None,
         page_number_limit: int | None = None,
         accessible_only: bool = False,
-    ) -> list[dict[str, Any]]:
+    ) -> list[RepositoryInfo]:
         if not query:
             all_repos = self.get_client().get_repos(page_number_limit=page_number_limit)
             return [
                 {
                     "name": i["name"],
                     "identifier": i["full_name"],
+                    "external_id": self.get_repo_external_id(i),
                     "default_branch": i.get("default_branch"),
                 }
                 for i in all_repos
@@ -239,6 +246,7 @@ def get_repositories(
             {
                 "name": i["name"],
                 "identifier": i["full_name"],
+                "external_id": self.get_repo_external_id(i),
                 "default_branch": i.get("default_branch"),
             }
             for i in response.get("items", [])
diff --git a/src/sentry/integrations/gitlab/integration.py b/src/sentry/integrations/gitlab/integration.py
index 2054eb28b1436c..38e77b70a83ca9 100644
--- a/src/sentry/integrations/gitlab/integration.py
+++ b/src/sentry/integrations/gitlab/integration.py
@@ -33,7 +33,10 @@
     CommitContextIntegration,
     PRCommentWorkflow,
 )
-from sentry.integrations.source_code_management.repository import RepositoryIntegration
+from sentry.integrations.source_code_management.repository import (
+    RepositoryInfo,
+    RepositoryIntegration,
+)
 from sentry.integrations.types import IntegrationProviderSlug
 from sentry.models.group import Group
 from sentry.models.organization import Organization
@@ -123,7 +126,10 @@
 
 
 class GitlabIntegration(
-    RepositoryIntegration, GitlabIssuesSpec, GitlabIssueSyncSpec, CommitContextIntegration
+    RepositoryIntegration[GitLabApiClient],
+    GitlabIssuesSpec,
+    GitlabIssueSyncSpec,
+    CommitContextIntegration,
 ):
     codeowners_locations = ["CODEOWNERS", ".gitlab/CODEOWNERS", "docs/CODEOWNERS"]
 
@@ -164,18 +170,27 @@ def has_repo_access(self, repo: RpcRepository) -> bool:
         # TODO: define this, used to migrate repositories
         return False
 
+    def get_repo_external_id(self, repo: Mapping[str, Any]) -> str:
+        instance = self.model.metadata["instance"]
+        return f"{instance}:{repo['id']}"
+
     def get_repositories(
         self,
         query: str | None = None,
         page_number_limit: int | None = None,
         accessible_only: bool = False,
-    ) -> list[dict[str, Any]]:
+    ) -> list[RepositoryInfo]:
         try:
             # Note: gitlab projects are the same things as repos everywhere else
             group = self.get_group_id()
             resp = self.get_client().search_projects(group, query)
             return [
-                {"identifier": repo["id"], "name": repo["name_with_namespace"]} for repo in resp
+                {
+                    "identifier": str(repo["id"]),
+                    "name": repo["name_with_namespace"],
+                    "external_id": self.get_repo_external_id(repo),
+                }
+                for repo in resp
             ]
         except (ApiForbiddenError, ApiUnauthorized) as e:
             raise IntegrationConfigurationError(self.message_from_error(e)) from e
diff --git a/src/sentry/integrations/gitlab/issues.py b/src/sentry/integrations/gitlab/issues.py
index 1bada17ecc8142..76d275df5b7168 100644
--- a/src/sentry/integrations/gitlab/issues.py
+++ b/src/sentry/integrations/gitlab/issues.py
@@ -47,7 +47,8 @@ def get_projects_and_default(self, group: Group | None, params: Mapping[str, Any
         # expects the param to be called 'repo', so we need to rename it here.
         # Django QueryDicts are immutable, so we need to copy it first.
         params_mut = dict(params)
-        params_mut["repo"] = params.get("project") or defaults.get("project")
+        repo = params.get("project") or defaults.get("project")
+        params_mut["repo"] = str(repo) if repo is not None else None
 
         default_project, project_choices = self.get_repository_choices(group, params_mut)
         return default_project, project_choices
@@ -59,7 +60,7 @@ def create_default_repo_choice(self, default_repo):
             project = client.get_project(default_repo)
         except (ApiError, ApiUnauthorized):
             return ("", "")
-        return (project["id"], project["name_with_namespace"])
+        return (str(project["id"]), project["name_with_namespace"])
 
     @all_silo_function
     def get_create_issue_config(
diff --git a/src/sentry/integrations/gitlab/repository.py b/src/sentry/integrations/gitlab/repository.py
index d2285d73b195f0..d926fd37573214 100644
--- a/src/sentry/integrations/gitlab/repository.py
+++ b/src/sentry/integrations/gitlab/repository.py
@@ -1,5 +1,7 @@
+from __future__ import annotations
+
 from collections.abc import Mapping
-from typing import Any
+from typing import TYPE_CHECKING, Any
 
 from sentry.integrations.types import IntegrationProviderSlug
 from sentry.organizations.services.organization.model import RpcOrganization
@@ -7,8 +9,11 @@
 from sentry.plugins.providers.integration_repository import RepositoryConfig
 from sentry.shared_integrations.exceptions import ApiError
 
+if TYPE_CHECKING:
+    from sentry.integrations.gitlab.integration import GitlabIntegration  # NOQA
+
 
-class GitlabRepositoryProvider(IntegrationRepositoryProvider):
+class GitlabRepositoryProvider(IntegrationRepositoryProvider["GitlabIntegration"]):
     name = "Gitlab"
     repo_provider = IntegrationProviderSlug.GITLAB.value
 
@@ -28,7 +33,7 @@ def get_repository_data(self, organization, config):
                 "instance": instance,
                 "path": project["path_with_namespace"],
                 "name": project["name_with_namespace"],
-                "external_id": "{}:{}".format(instance, project["id"]),
+                "external_id": installation.get_repo_external_id(project),
                 "project_id": project["id"],
                 "url": project["web_url"],
             }
diff --git a/src/sentry/integrations/gitlab/search.py b/src/sentry/integrations/gitlab/search.py
index 01cffd4ca7e56d..597b70bdf1b8f6 100644
--- a/src/sentry/integrations/gitlab/search.py
+++ b/src/sentry/integrations/gitlab/search.py
@@ -77,7 +77,7 @@ def handle_search_repositories(
                 return Response({"detail": str(e)}, status=400)
             return Response(
                 [
-                    {"label": project["name_with_namespace"], "value": project["id"]}
+                    {"label": project["name_with_namespace"], "value": str(project["id"])}
                     for project in response
                 ]
             )
diff --git a/src/sentry/integrations/perforce/integration.py b/src/sentry/integrations/perforce/integration.py
index 921ec2ba9ad48b..1f36340886dd7a 100644
--- a/src/sentry/integrations/perforce/integration.py
+++ b/src/sentry/integrations/perforce/integration.py
@@ -21,7 +21,10 @@
 from sentry.integrations.pipeline import IntegrationPipeline
 from sentry.integrations.services.repository import RpcRepository
 from sentry.integrations.source_code_management.commit_context import CommitContextIntegration
-from sentry.integrations.source_code_management.repository import RepositoryIntegration
+from sentry.integrations.source_code_management.repository import (
+    RepositoryInfo,
+    RepositoryIntegration,
+)
 from sentry.models.repository import Repository
 from sentry.organizations.services.organization.model import RpcOrganization
 from sentry.pipeline.views.base import PipelineView
@@ -164,7 +167,7 @@ def clean_web_url(self) -> str:
         return web_url
 
 
-class PerforceIntegration(RepositoryIntegration, CommitContextIntegration):
+class PerforceIntegration(RepositoryIntegration[PerforceClient], CommitContextIntegration):
     """
     Integration for P4 Core version control system.
     Provides stacktrace linking to depot files and suspect commit detection.
@@ -184,6 +187,11 @@ def __init__(
         super().__init__(model=model, organization_id=organization_id)
         self._client: PerforceClient | None = None
 
+    def get_repo_external_id(self, repo: Mapping[str, Any]) -> str:
+        raise NotImplementedError(
+            "Perforce external_id is derived from the depot path, not the API response"
+        )
+
     def get_client(self) -> PerforceClient:
         """Get the Perforce client instance."""
         if self._client is not None:
@@ -353,7 +361,7 @@ def get_repositories(
         query: str | None = None,
         page_number_limit: int | None = None,
         accessible_only: bool = False,
-    ) -> list[dict[str, Any]]:
+    ) -> list[RepositoryInfo]:
         """
         Get list of depots/streams from Perforce server.
 
@@ -368,7 +376,7 @@ def get_repositories(
             client = self.get_client()
             depots = client.get_depots()
 
-            repositories = []
+            repositories: list[RepositoryInfo] = []
             for depot in depots:
                 depot_name = depot["name"]
                 depot_path = f"//{depot_name}"
@@ -381,6 +389,7 @@ def get_repositories(
                     {
                         "name": depot_name,
                         "identifier": depot_path,
+                        "external_id": "",  # Perforce derives external_id from the user-provided depot path, not the API response
                         "default_branch": None,  # Perforce uses depot paths, not branch refs
                     }
                 )
diff --git a/src/sentry/integrations/perforce/repository.py b/src/sentry/integrations/perforce/repository.py
index 52d84dd91c13fa..8b1751de9a20e8 100644
--- a/src/sentry/integrations/perforce/repository.py
+++ b/src/sentry/integrations/perforce/repository.py
@@ -12,6 +12,7 @@
     P4UserInfo,
     PerforceClient,
 )
+from sentry.integrations.perforce.integration import PerforceIntegration
 from sentry.integrations.services.integration import integration_service
 from sentry.models.organization import Organization
 from sentry.models.pullrequest import PullRequest
@@ -24,7 +25,7 @@
 logger = logging.getLogger(__name__)
 
 
-class PerforceRepositoryProvider(IntegrationRepositoryProvider):
+class PerforceRepositoryProvider(IntegrationRepositoryProvider[PerforceIntegration]):
     """Repository provider for Perforce integration."""
 
     name = "Perforce"
diff --git a/src/sentry/integrations/source_code_management/issues.py b/src/sentry/integrations/source_code_management/issues.py
index da4690b3c8f2e3..8905f7e76d63c4 100644
--- a/src/sentry/integrations/source_code_management/issues.py
+++ b/src/sentry/integrations/source_code_management/issues.py
@@ -35,7 +35,7 @@ def _get_repository_choices(
         params: Mapping[str, Any],
         lifecycle: EventLifecycle,
         page_number_limit: int | None = None,
-    ) -> tuple[str, list[tuple[str, str | int]]]:
+    ) -> tuple[str, list[tuple[str, str]]]:
         try:
             repos = self.get_repositories(page_number_limit=page_number_limit)
         except ApiError as exc:
@@ -67,7 +67,7 @@ def _get_repository_choices(
 
     def get_repository_choices(
         self, group: Group | None, params: Mapping[str, Any], page_number_limit: int | None = None
-    ) -> tuple[str, list[tuple[str, str | int]]]:
+    ) -> tuple[str, list[tuple[str, str]]]:
         """
         Returns the default repository and a set/subset of repositories of associated with the installation
         """
diff --git a/src/sentry/integrations/source_code_management/repo_trees.py b/src/sentry/integrations/source_code_management/repo_trees.py
index cdd54b15e4145a..8ff5a333bccfd8 100644
--- a/src/sentry/integrations/source_code_management/repo_trees.py
+++ b/src/sentry/integrations/source_code_management/repo_trees.py
@@ -6,6 +6,7 @@
 from typing import Any, NamedTuple
 
 from sentry.integrations.services.integration import RpcOrganizationIntegration
+from sentry.integrations.source_code_management.repository import RepositoryInfo
 from sentry.issues.auto_source_code_config.utils.platform import get_supported_extensions
 from sentry.shared_integrations.exceptions import ApiConflictError, ApiError, IntegrationError
 from sentry.utils import metrics
@@ -51,7 +52,7 @@ def get_client(self) -> RepoTreesClient:
         raise NotImplementedError
 
     @abstractmethod
-    def get_repositories(self, query: str | None = None) -> list[dict[str, Any]]:
+    def get_repositories(self, query: str | None = None) -> list[RepositoryInfo]:
         raise NotImplementedError
 
     @property
@@ -89,8 +90,8 @@ def _populate_repositories(self) -> list[dict[str, str]]:
             repositories = [
                 # Do not use RepoAndBranch so it stores in the cache as a simple dict
                 {
-                    "full_name": repo_info["identifier"],
-                    "default_branch": repo_info["default_branch"],
+                    "full_name": str(repo_info["identifier"]),
+                    "default_branch": repo_info.get("default_branch") or "",
                 }
                 for repo_info in self.get_repositories()
                 if not repo_info.get("archived")
diff --git a/src/sentry/integrations/source_code_management/repository.py b/src/sentry/integrations/source_code_management/repository.py
index da5e9ecc362ff4..0ba84a1bfd18f9 100644
--- a/src/sentry/integrations/source_code_management/repository.py
+++ b/src/sentry/integrations/source_code_management/repository.py
@@ -2,7 +2,7 @@
 
 from abc import ABC, abstractmethod
 from collections.abc import Mapping
-from typing import Any
+from typing import Any, Generic, NotRequired, TypedDict, TypeVar
 from urllib.parse import quote as urlquote
 from urllib.parse import unquote, urlparse, urlunparse
 
@@ -29,14 +29,37 @@
 from sentry.users.models.identity import Identity
 
 
+class RepositoryInfo(TypedDict):
+    """Common shape returned by get_repositories() across all SCM providers."""
+
+    name: str
+    identifier: str
+    external_id: str
+    default_branch: NotRequired[str | None]  # GitHub, GitHub Enterprise
+    project: NotRequired[str]  # Bitbucket Server
+    repo: NotRequired[str]  # Bitbucket Server
+
+
 class BaseRepositoryIntegration(ABC):
+    def get_repo_external_id(self, repo: Mapping[str, Any]) -> str:
+        """
+        Extract the external_id from a raw repository API response.
+
+        This is the canonical definition of how each provider maps its
+        API response to the external_id stored in Sentry's Repository model.
+        Override in provider-specific installation classes as needed.
+
+        Default assumes the API returns an ``id`` field.
+        """
+        return str(repo["id"])
+
     @abstractmethod
     def get_repositories(
         self,
         query: str | None = None,
         page_number_limit: int | None = None,
         accessible_only: bool = False,
-    ) -> list[dict[str, Any]]:
+    ) -> list[RepositoryInfo]:
         """
         Get a list of available repositories for an installation
 
@@ -46,12 +69,15 @@ def get_repositories(
         return [{
             'name': display_name,
             'identifier': external_repo_id,
+            'external_id': provider_internal_id,
         }]
 
         The shape of the `identifier` should match the data
         returned by the integration's
         IntegrationRepositoryProvider.repository_external_slug()
 
+        The `external_id` is derived from `self.get_repo_external_id(repo)`.
+
         You can use the `query` argument to filter repositories.
         When `accessible_only` is True and a query is provided,
         only repositories the installation has access to are
@@ -61,7 +87,12 @@ def get_repositories(
         raise NotImplementedError
 
 
-class RepositoryIntegration(IntegrationInstallation, BaseRepositoryIntegration, ABC):
+ClientT = TypeVar("ClientT", bound="RepositoryClient", default="RepositoryClient")
+
+
+class RepositoryIntegration(
+    IntegrationInstallation, BaseRepositoryIntegration, Generic[ClientT], ABC
+):
     @property
     def codeowners_locations(self) -> list[str] | None:
         """
@@ -79,7 +110,7 @@ def integration_name(self) -> str:
         raise NotImplementedError
 
     @abstractmethod
-    def get_client(self) -> RepositoryClient:
+    def get_client(self) -> ClientT:
         """Returns the client for the integration. The client must be a subclass of RepositoryClient."""
         raise NotImplementedError
 
@@ -109,7 +140,7 @@ def has_repo_access(self, repo: RpcRepository) -> bool:
         raise NotImplementedError
 
     @staticmethod
-    def find_repo_info(repositories: list[dict[str, Any]], repo_name: str) -> dict[str, Any] | None:
+    def find_repo_info(repositories: list[RepositoryInfo], repo_name: str) -> RepositoryInfo | None:
         """
         Find a repository dict by matching identifier first, then name.
         """
diff --git a/src/sentry/integrations/vsts/integration.py b/src/sentry/integrations/vsts/integration.py
index c701945cac60ec..77393319440e0b 100644
--- a/src/sentry/integrations/vsts/integration.py
+++ b/src/sentry/integrations/vsts/integration.py
@@ -32,7 +32,10 @@
 from sentry.integrations.pipeline import IntegrationPipeline
 from sentry.integrations.services.integration import integration_service
 from sentry.integrations.services.repository import RpcRepository, repository_service
-from sentry.integrations.source_code_management.repository import RepositoryIntegration
+from sentry.integrations.source_code_management.repository import (
+    RepositoryInfo,
+    RepositoryIntegration,
+)
 from sentry.integrations.tasks.migrate_repo import migrate_repo
 from sentry.integrations.types import IntegrationProviderSlug
 from sentry.integrations.utils.metrics import (
@@ -132,7 +135,7 @@
 logger = logging.getLogger("sentry.integrations")
 
 
-class VstsIntegration(RepositoryIntegration, VstsIssuesSpec):
+class VstsIntegration(RepositoryIntegration[VstsApiClient], VstsIssuesSpec):
     logger = logger
     comment_key = "sync_comments"
     outbound_status_key = "sync_status_forward"
@@ -312,17 +315,18 @@ def get_repositories(
         query: str | None = None,
         page_number_limit: int | None = None,
         accessible_only: bool = False,
-    ) -> list[dict[str, Any]]:
+    ) -> list[RepositoryInfo]:
         try:
             repos = self.get_client().get_repos()
         except (ApiError, IdentityNotValid) as e:
             raise IntegrationError(self.message_from_error(e))
-        data = []
+        data: list[RepositoryInfo] = []
         for repo in repos["value"]:
             data.append(
                 {
                     "name": "{}/{}".format(repo["project"]["name"], repo["name"]),
-                    "identifier": repo["id"],
+                    "identifier": str(repo["id"]),
+                    "external_id": self.get_repo_external_id(repo),
                 }
             )
         return data
diff --git a/src/sentry/integrations/vsts/repository.py b/src/sentry/integrations/vsts/repository.py
index ac015771960172..9a7b9fd66250d7 100644
--- a/src/sentry/integrations/vsts/repository.py
+++ b/src/sentry/integrations/vsts/repository.py
@@ -2,7 +2,7 @@
 
 import logging
 from collections.abc import Mapping, MutableMapping, Sequence
-from typing import Any
+from typing import TYPE_CHECKING, Any
 
 from sentry.integrations.types import IntegrationProviderSlug
 from sentry.models.organization import Organization
@@ -11,22 +11,22 @@
 from sentry.plugins.providers import IntegrationRepositoryProvider
 from sentry.plugins.providers.integration_repository import RepositoryConfig
 
+if TYPE_CHECKING:
+    from sentry.integrations.vsts.integration import VstsIntegration as VstsIntegrationType  # NOQA
+
 MAX_COMMIT_DATA_REQUESTS = 90
 
 logger = logging.getLogger(__name__)
 
 
-class VstsRepositoryProvider(IntegrationRepositoryProvider):
+class VstsRepositoryProvider(IntegrationRepositoryProvider["VstsIntegrationType"]):
     name = "Azure DevOps"
     repo_provider = IntegrationProviderSlug.AZURE_DEVOPS.value
 
     def get_repository_data(
         self, organization: Organization, config: MutableMapping[str, Any]
     ) -> Mapping[str, str]:
-        from sentry.integrations.vsts.integration import VstsIntegration
-
         installation = self.get_installation(config.get("installation"), organization.id)
-        assert isinstance(installation, VstsIntegration), installation
         client = installation.get_client()
 
         repo_id = config["identifier"]
@@ -40,7 +40,7 @@ def get_repository_data(
                 "instance": installation.instance,
                 "project": repo["project"]["name"],
                 "name": repo["name"],
-                "external_id": str(repo["id"]),
+                "external_id": installation.get_repo_external_id(repo),
                 "url": repo["_links"]["web"]["href"],
             }
         )
@@ -78,6 +78,7 @@ def transform_changes(
     def zip_commit_data(
         self, repo: Repository, commit_list: list[dict[str, Any]], organization_id: int
     ) -> list[dict[str, Any]]:
+        assert repo.external_id is not None
         installation = self.get_installation(repo.integration_id, organization_id)
         client = installation.get_client()
         n = 0
@@ -104,6 +105,7 @@ def compare_commits(
         self, repo: Repository, start_sha: str | None, end_sha: str
     ) -> Sequence[Mapping[str, str]]:
         """TODO(mgaeta): This function is kinda a mess."""
+        assert repo.external_id is not None
         installation = self.get_installation(repo.integration_id, repo.organization_id)
         client = installation.get_client()
 
diff --git a/src/sentry/plugins/providers/integration_repository.py b/src/sentry/plugins/providers/integration_repository.py
index 2834592c069e25..6ec07a7635be7e 100644
--- a/src/sentry/plugins/providers/integration_repository.py
+++ b/src/sentry/plugins/providers/integration_repository.py
@@ -3,7 +3,7 @@
 import logging
 from collections.abc import Mapping
 from datetime import timezone
-from typing import Any, ClassVar, NotRequired, TypedDict
+from typing import Any, ClassVar, Generic, NotRequired, TypedDict, TypeVar, cast
 
 from dateutil.parser import parse as parse_date
 from rest_framework import status
@@ -14,11 +14,11 @@
 from sentry.api.exceptions import SentryAPIException
 from sentry.constants import ObjectStatus
 from sentry.integrations.analytics import IntegrationRepoAddedEvent
-from sentry.integrations.base import IntegrationInstallation
 from sentry.integrations.models.integration import Integration
 from sentry.integrations.services.integration import integration_service
 from sentry.integrations.services.repository import repository_service
 from sentry.integrations.services.repository.model import RpcCreateRepository, RpcRepository
+from sentry.integrations.source_code_management.repository import RepositoryIntegration
 from sentry.models.repository import Repository
 from sentry.organizations.services.organization.model import RpcOrganization
 from sentry.shared_integrations.exceptions import IntegrationError
@@ -27,6 +27,8 @@
 from sentry.users.services.user.serial import serialize_rpc_user
 from sentry.utils import metrics
 
+InstT = TypeVar("InstT", bound="RepositoryIntegration[Any]", default=RepositoryIntegration)
+
 
 class RepositoryInputConfig(TypedDict):
     """Input config passed to create_repositories / build_repository_config.
@@ -81,7 +83,7 @@ def get_integration_repository_provider(integration):
     return provider_cls(id=provider_key)
 
 
-class IntegrationRepositoryProvider:
+class IntegrationRepositoryProvider(Generic[InstT]):
     """
     Repository Provider for Integrations in the Sentry Repository.
     Does not include plugins.
@@ -98,7 +100,7 @@ def get_installation(
         self,
         integration_id: int | None,
         organization_id: int,
-    ) -> IntegrationInstallation:
+    ) -> InstT:
         if integration_id is None:
             raise IntegrationError(f"{self.name} requires an integration id.")
 
@@ -114,7 +116,7 @@ def get_installation(
         if rpc_org_integration is None:
             raise Integration.DoesNotExist("Integration matching query does not exist.")
 
-        return rpc_integration.get_installation(organization_id=organization_id)
+        return cast(InstT, rpc_integration.get_installation(organization_id=organization_id))
 
     def create_repository(
         self,
diff --git a/tests/sentry/integrations/bitbucket/test_integration.py b/tests/sentry/integrations/bitbucket/test_integration.py
index 965411ff5829e8..cf140802046f9e 100644
--- a/tests/sentry/integrations/bitbucket/test_integration.py
+++ b/tests/sentry/integrations/bitbucket/test_integration.py
@@ -47,11 +47,13 @@ def test_get_repositories_with_uuid(self) -> None:
         responses.add(
             responses.GET,
             url,
-            json={"values": [{"full_name": "sentryuser/stuf"}]},
+            json={"values": [{"full_name": "sentryuser/stuf", "uuid": "{abc-001}"}]},
         )
         installation = self.integration.get_installation(self.organization.id)
         result = installation.get_repositories()
-        assert result == [{"identifier": "sentryuser/stuf", "name": "sentryuser/stuf"}]
+        assert result == [
+            {"identifier": "sentryuser/stuf", "name": "sentryuser/stuf", "external_id": "{abc-001}"}
+        ]
 
     @responses.activate
     def test_get_repositories_exact_match(self) -> None:
@@ -59,7 +61,7 @@ def test_get_repositories_exact_match(self) -> None:
         responses.add(
             responses.GET,
             f"https://api.bitbucket.org/2.0/repositories/sentryuser?{querystring}",
-            json={"values": [{"full_name": "sentryuser/stuf"}]},
+            json={"values": [{"full_name": "sentryuser/stuf", "uuid": "{abc-001}"}]},
         )
 
         querystring = urlencode({"q": 'name~"stuf"'})
@@ -68,18 +70,18 @@ def test_get_repositories_exact_match(self) -> None:
             f"https://api.bitbucket.org/2.0/repositories/sentryuser?{querystring}",
             json={
                 "values": [
-                    {"full_name": "sentryuser/stuff"},
-                    {"full_name": "sentryuser/stuff-2010"},
-                    {"full_name": "sentryuser/stuff-2011"},
-                    {"full_name": "sentryuser/stuff-2012"},
-                    {"full_name": "sentryuser/stuff-2013"},
-                    {"full_name": "sentryuser/stuff-2014"},
-                    {"full_name": "sentryuser/stuff-2015"},
-                    {"full_name": "sentryuser/stuff-2016"},
-                    {"full_name": "sentryuser/stuff-2016"},
-                    {"full_name": "sentryuser/stuff-2017"},
-                    {"full_name": "sentryuser/stuff-2018"},
-                    {"full_name": "sentryuser/stuff-2019"},
+                    {"full_name": "sentryuser/stuff", "uuid": "{abc-002}"},
+                    {"full_name": "sentryuser/stuff-2010", "uuid": "{abc-003}"},
+                    {"full_name": "sentryuser/stuff-2011", "uuid": "{abc-004}"},
+                    {"full_name": "sentryuser/stuff-2012", "uuid": "{abc-005}"},
+                    {"full_name": "sentryuser/stuff-2013", "uuid": "{abc-006}"},
+                    {"full_name": "sentryuser/stuff-2014", "uuid": "{abc-007}"},
+                    {"full_name": "sentryuser/stuff-2015", "uuid": "{abc-008}"},
+                    {"full_name": "sentryuser/stuff-2016", "uuid": "{abc-009}"},
+                    {"full_name": "sentryuser/stuff-2016", "uuid": "{abc-009}"},
+                    {"full_name": "sentryuser/stuff-2017", "uuid": "{abc-010}"},
+                    {"full_name": "sentryuser/stuff-2018", "uuid": "{abc-011}"},
+                    {"full_name": "sentryuser/stuff-2019", "uuid": "{abc-012}"},
                 ]
             },
         )
@@ -87,18 +89,66 @@ def test_get_repositories_exact_match(self) -> None:
         installation = self.integration.get_installation(self.organization.id)
         result = installation.get_repositories("stuf")
         assert result == [
-            {"identifier": "sentryuser/stuf", "name": "sentryuser/stuf"},
-            {"identifier": "sentryuser/stuff", "name": "sentryuser/stuff"},
-            {"identifier": "sentryuser/stuff-2010", "name": "sentryuser/stuff-2010"},
-            {"identifier": "sentryuser/stuff-2011", "name": "sentryuser/stuff-2011"},
-            {"identifier": "sentryuser/stuff-2012", "name": "sentryuser/stuff-2012"},
-            {"identifier": "sentryuser/stuff-2013", "name": "sentryuser/stuff-2013"},
-            {"identifier": "sentryuser/stuff-2014", "name": "sentryuser/stuff-2014"},
-            {"identifier": "sentryuser/stuff-2015", "name": "sentryuser/stuff-2015"},
-            {"identifier": "sentryuser/stuff-2016", "name": "sentryuser/stuff-2016"},
-            {"identifier": "sentryuser/stuff-2017", "name": "sentryuser/stuff-2017"},
-            {"identifier": "sentryuser/stuff-2018", "name": "sentryuser/stuff-2018"},
-            {"identifier": "sentryuser/stuff-2019", "name": "sentryuser/stuff-2019"},
+            {
+                "identifier": "sentryuser/stuf",
+                "name": "sentryuser/stuf",
+                "external_id": "{abc-001}",
+            },
+            {
+                "identifier": "sentryuser/stuff",
+                "name": "sentryuser/stuff",
+                "external_id": "{abc-002}",
+            },
+            {
+                "identifier": "sentryuser/stuff-2010",
+                "name": "sentryuser/stuff-2010",
+                "external_id": "{abc-003}",
+            },
+            {
+                "identifier": "sentryuser/stuff-2011",
+                "name": "sentryuser/stuff-2011",
+                "external_id": "{abc-004}",
+            },
+            {
+                "identifier": "sentryuser/stuff-2012",
+                "name": "sentryuser/stuff-2012",
+                "external_id": "{abc-005}",
+            },
+            {
+                "identifier": "sentryuser/stuff-2013",
+                "name": "sentryuser/stuff-2013",
+                "external_id": "{abc-006}",
+            },
+            {
+                "identifier": "sentryuser/stuff-2014",
+                "name": "sentryuser/stuff-2014",
+                "external_id": "{abc-007}",
+            },
+            {
+                "identifier": "sentryuser/stuff-2015",
+                "name": "sentryuser/stuff-2015",
+                "external_id": "{abc-008}",
+            },
+            {
+                "identifier": "sentryuser/stuff-2016",
+                "name": "sentryuser/stuff-2016",
+                "external_id": "{abc-009}",
+            },
+            {
+                "identifier": "sentryuser/stuff-2017",
+                "name": "sentryuser/stuff-2017",
+                "external_id": "{abc-010}",
+            },
+            {
+                "identifier": "sentryuser/stuff-2018",
+                "name": "sentryuser/stuff-2018",
+                "external_id": "{abc-011}",
+            },
+            {
+                "identifier": "sentryuser/stuff-2019",
+                "name": "sentryuser/stuff-2019",
+                "external_id": "{abc-012}",
+            },
         ]
 
     @responses.activate
@@ -109,18 +159,18 @@ def test_get_repositories_no_exact_match(self) -> None:
             f"https://api.bitbucket.org/2.0/repositories/sentryuser?{querystring}",
             json={
                 "values": [
-                    {"full_name": "sentryuser/stuff"},
-                    {"full_name": "sentryuser/stuff-2010"},
-                    {"full_name": "sentryuser/stuff-2011"},
-                    {"full_name": "sentryuser/stuff-2012"},
-                    {"full_name": "sentryuser/stuff-2013"},
-                    {"full_name": "sentryuser/stuff-2014"},
-                    {"full_name": "sentryuser/stuff-2015"},
-                    {"full_name": "sentryuser/stuff-2016"},
-                    {"full_name": "sentryuser/stuff-2016"},
-                    {"full_name": "sentryuser/stuff-2017"},
-                    {"full_name": "sentryuser/stuff-2018"},
-                    {"full_name": "sentryuser/stuff-2019"},
+                    {"full_name": "sentryuser/stuff", "uuid": "{abc-002}"},
+                    {"full_name": "sentryuser/stuff-2010", "uuid": "{abc-003}"},
+                    {"full_name": "sentryuser/stuff-2011", "uuid": "{abc-004}"},
+                    {"full_name": "sentryuser/stuff-2012", "uuid": "{abc-005}"},
+                    {"full_name": "sentryuser/stuff-2013", "uuid": "{abc-006}"},
+                    {"full_name": "sentryuser/stuff-2014", "uuid": "{abc-007}"},
+                    {"full_name": "sentryuser/stuff-2015", "uuid": "{abc-008}"},
+                    {"full_name": "sentryuser/stuff-2016", "uuid": "{abc-009}"},
+                    {"full_name": "sentryuser/stuff-2016", "uuid": "{abc-009}"},
+                    {"full_name": "sentryuser/stuff-2017", "uuid": "{abc-010}"},
+                    {"full_name": "sentryuser/stuff-2018", "uuid": "{abc-011}"},
+                    {"full_name": "sentryuser/stuff-2019", "uuid": "{abc-012}"},
                 ]
             },
         )
@@ -135,17 +185,61 @@ def test_get_repositories_no_exact_match(self) -> None:
         installation = self.integration.get_installation(self.organization.id)
         result = installation.get_repositories("stu")
         assert result == [
-            {"identifier": "sentryuser/stuff", "name": "sentryuser/stuff"},
-            {"identifier": "sentryuser/stuff-2010", "name": "sentryuser/stuff-2010"},
-            {"identifier": "sentryuser/stuff-2011", "name": "sentryuser/stuff-2011"},
-            {"identifier": "sentryuser/stuff-2012", "name": "sentryuser/stuff-2012"},
-            {"identifier": "sentryuser/stuff-2013", "name": "sentryuser/stuff-2013"},
-            {"identifier": "sentryuser/stuff-2014", "name": "sentryuser/stuff-2014"},
-            {"identifier": "sentryuser/stuff-2015", "name": "sentryuser/stuff-2015"},
-            {"identifier": "sentryuser/stuff-2016", "name": "sentryuser/stuff-2016"},
-            {"identifier": "sentryuser/stuff-2017", "name": "sentryuser/stuff-2017"},
-            {"identifier": "sentryuser/stuff-2018", "name": "sentryuser/stuff-2018"},
-            {"identifier": "sentryuser/stuff-2019", "name": "sentryuser/stuff-2019"},
+            {
+                "identifier": "sentryuser/stuff",
+                "name": "sentryuser/stuff",
+                "external_id": "{abc-002}",
+            },
+            {
+                "identifier": "sentryuser/stuff-2010",
+                "name": "sentryuser/stuff-2010",
+                "external_id": "{abc-003}",
+            },
+            {
+                "identifier": "sentryuser/stuff-2011",
+                "name": "sentryuser/stuff-2011",
+                "external_id": "{abc-004}",
+            },
+            {
+                "identifier": "sentryuser/stuff-2012",
+                "name": "sentryuser/stuff-2012",
+                "external_id": "{abc-005}",
+            },
+            {
+                "identifier": "sentryuser/stuff-2013",
+                "name": "sentryuser/stuff-2013",
+                "external_id": "{abc-006}",
+            },
+            {
+                "identifier": "sentryuser/stuff-2014",
+                "name": "sentryuser/stuff-2014",
+                "external_id": "{abc-007}",
+            },
+            {
+                "identifier": "sentryuser/stuff-2015",
+                "name": "sentryuser/stuff-2015",
+                "external_id": "{abc-008}",
+            },
+            {
+                "identifier": "sentryuser/stuff-2016",
+                "name": "sentryuser/stuff-2016",
+                "external_id": "{abc-009}",
+            },
+            {
+                "identifier": "sentryuser/stuff-2017",
+                "name": "sentryuser/stuff-2017",
+                "external_id": "{abc-010}",
+            },
+            {
+                "identifier": "sentryuser/stuff-2018",
+                "name": "sentryuser/stuff-2018",
+                "external_id": "{abc-011}",
+            },
+            {
+                "identifier": "sentryuser/stuff-2019",
+                "name": "sentryuser/stuff-2019",
+                "external_id": "{abc-012}",
+            },
         ]
 
     @responses.activate
diff --git a/tests/sentry/integrations/bitbucket/test_issues.py b/tests/sentry/integrations/bitbucket/test_issues.py
index af08e90451b4ce..f3947ab385e890 100644
--- a/tests/sentry/integrations/bitbucket/test_issues.py
+++ b/tests/sentry/integrations/bitbucket/test_issues.py
@@ -108,8 +108,8 @@ def test_default_repo_link_fields(self) -> None:
             "https://api.bitbucket.org/2.0/repositories/myaccount",
             body=b"""{
                 "values": [
-                    {"full_name": "myaccount/repo1"},
-                    {"full_name": "myaccount/repo2"}
+                    {"full_name": "myaccount/repo1", "uuid": "{repo-1}"},
+                    {"full_name": "myaccount/repo2", "uuid": "{repo-2}"}
                 ]
             }""",
             content_type="application/json",
@@ -132,8 +132,8 @@ def test_default_repo_create_fields(self) -> None:
             "https://api.bitbucket.org/2.0/repositories/myaccount",
             body=b"""{
                 "values": [
-                    {"full_name": "myaccount/repo1"},
-                    {"full_name": "myaccount/repo2"}
+                    {"full_name": "myaccount/repo1", "uuid": "{repo-1}"},
+                    {"full_name": "myaccount/repo2", "uuid": "{repo-2}"}
                 ]
             }""",
             content_type="application/json",
@@ -191,7 +191,12 @@ def test_get_create_issue_config(self) -> None:
         responses.add(
             responses.GET,
             "https://api.bitbucket.org/2.0/repositories/myaccount",
-            json={"values": [{"full_name": "myaccount/repo1"}, {"full_name": "myaccount/repo2"}]},
+            json={
+                "values": [
+                    {"full_name": "myaccount/repo1", "uuid": "{repo-1}"},
+                    {"full_name": "myaccount/repo2", "uuid": "{repo-2}"},
+                ]
+            },
         )
 
         installation = self.integration.get_installation(self.organization.id)
@@ -244,7 +249,12 @@ def test_get_create_issue_config_with_long_title(self) -> None:
         responses.add(
             responses.GET,
             "https://api.bitbucket.org/2.0/repositories/myaccount",
-            json={"values": [{"full_name": "myaccount/repo1"}, {"full_name": "myaccount/repo2"}]},
+            json={
+                "values": [
+                    {"full_name": "myaccount/repo1", "uuid": "{repo-1}"},
+                    {"full_name": "myaccount/repo2", "uuid": "{repo-2}"},
+                ]
+            },
         )
         installation = self.integration.get_installation(self.organization.id)
         event = self.store_event(
@@ -268,8 +278,8 @@ def test_get_create_issue_config_without_group(self) -> None:
             "https://api.bitbucket.org/2.0/repositories/myaccount",
             json={
                 "values": [
-                    {"full_name": "myaccount/repo1"},
-                    {"full_name": "myaccount/repo2"},
+                    {"full_name": "myaccount/repo1", "uuid": "{repo-1}"},
+                    {"full_name": "myaccount/repo2", "uuid": "{repo-2}"},
                 ],
             },
         )
@@ -298,7 +308,12 @@ def test_get_link_issue_config(self) -> None:
         responses.add(
             responses.GET,
             "https://api.bitbucket.org/2.0/repositories/myaccount",
-            json={"values": [{"full_name": "myaccount/repo1"}, {"full_name": "myaccount/repo2"}]},
+            json={
+                "values": [
+                    {"full_name": "myaccount/repo1", "uuid": "{repo-1}"},
+                    {"full_name": "myaccount/repo2", "uuid": "{repo-2}"},
+                ]
+            },
         )
         installation = self.integration.get_installation(self.organization.id)
         assert installation.get_link_issue_config(self.group) == [
diff --git a/tests/sentry/integrations/bitbucket/test_search.py b/tests/sentry/integrations/bitbucket/test_search.py
index 27c391ec2cbc13..c320e8ae141d50 100644
--- a/tests/sentry/integrations/bitbucket/test_search.py
+++ b/tests/sentry/integrations/bitbucket/test_search.py
@@ -77,7 +77,7 @@ def test_search_repositories(self, mock_record: MagicMock) -> None:
         responses.add(
             responses.GET,
             "https://api.bitbucket.org/2.0/repositories/meredithanya",
-            json={"values": [{"full_name": "meredithanya/apples"}]},
+            json={"values": [{"full_name": "meredithanya/apples", "uuid": "{abc-001}"}]},
         )
         resp = self.client.get(self.path, data={"field": "repo", "query": "apple"})
 
diff --git a/tests/sentry/integrations/github/test_integration.py b/tests/sentry/integrations/github/test_integration.py
index 300385d48fe4a6..a8981259957280 100644
--- a/tests/sentry/integrations/github/test_integration.py
+++ b/tests/sentry/integrations/github/test_integration.py
@@ -222,6 +222,7 @@ def _stub_github(self):
 
         repositories: dict[str, Any] = {
             "xyz": {
+                "id": 1234567,
                 "name": "xyz",
                 "full_name": "Test-Organization/xyz",
                 "default_branch": "master",
@@ -245,6 +246,9 @@ def _stub_github(self):
                 "default_branch": "master",
             },
             "archived": {
+                "id": 9999999,
+                "name": "archived",
+                "full_name": "Test-Organization/archived",
                 "archived": True,
             },
         }
@@ -637,8 +641,18 @@ def test_get_repositories_search_param(self) -> None:
             f"{self.base_url}/search/repositories?{querystring}",
             json={
                 "items": [
-                    {"name": "example", "full_name": "test/example", "default_branch": "master"},
-                    {"name": "exhaust", "full_name": "test/exhaust", "default_branch": "master"},
+                    {
+                        "id": 10,
+                        "name": "example",
+                        "full_name": "test/example",
+                        "default_branch": "master",
+                    },
+                    {
+                        "id": 11,
+                        "name": "exhaust",
+                        "full_name": "test/exhaust",
+                        "default_branch": "master",
+                    },
                 ]
             },
         )
@@ -649,8 +663,18 @@ def test_get_repositories_search_param(self) -> None:
         # This searches for any repositories matching the term 'ex'
         result = installation.get_repositories("ex")
         assert result == [
-            {"identifier": "test/example", "name": "example", "default_branch": "master"},
-            {"identifier": "test/exhaust", "name": "exhaust", "default_branch": "master"},
+            {
+                "identifier": "test/example",
+                "name": "example",
+                "external_id": "10",
+                "default_branch": "master",
+            },
+            {
+                "identifier": "test/exhaust",
+                "name": "exhaust",
+                "external_id": "11",
+                "default_branch": "master",
+            },
         ]
 
     @responses.activate
@@ -666,7 +690,12 @@ def test_get_repositories_accessible_only(self) -> None:
 
         result = installation.get_repositories("foo", accessible_only=True)
         assert result == [
-            {"name": "foo", "identifier": "Test-Organization/foo", "default_branch": "master"},
+            {
+                "name": "foo",
+                "identifier": "Test-Organization/foo",
+                "external_id": "1296269",
+                "default_branch": "master",
+            },
         ]
 
     @responses.activate
@@ -697,9 +726,24 @@ def test_get_repositories_all_and_pagination(self) -> None:
         with patch.object(sentry.integrations.github.client.GitHubBaseClient, "page_size", 1):
             result = installation.get_repositories()
             assert result == [
-                {"name": "foo", "identifier": "Test-Organization/foo", "default_branch": "master"},
-                {"name": "bar", "identifier": "Test-Organization/bar", "default_branch": "main"},
-                {"name": "baz", "identifier": "Test-Organization/baz", "default_branch": "master"},
+                {
+                    "name": "foo",
+                    "identifier": "Test-Organization/foo",
+                    "external_id": "1296269",
+                    "default_branch": "master",
+                },
+                {
+                    "name": "bar",
+                    "identifier": "Test-Organization/bar",
+                    "external_id": "9876574",
+                    "default_branch": "main",
+                },
+                {
+                    "name": "baz",
+                    "identifier": "Test-Organization/baz",
+                    "external_id": "1276555",
+                    "default_branch": "master",
+                },
             ]
 
     @responses.activate
@@ -721,7 +765,12 @@ def test_get_repositories_only_first_page(self) -> None:
         ):
             result = installation.get_repositories()
             assert result == [
-                {"name": "foo", "identifier": "Test-Organization/foo", "default_branch": "master"},
+                {
+                    "name": "foo",
+                    "identifier": "Test-Organization/foo",
+                    "external_id": "1296269",
+                    "default_branch": "master",
+                },
             ]
 
     @responses.activate
@@ -2352,6 +2401,7 @@ def _stub_github(self) -> None:
 
         repositories: dict[str, Any] = {
             "xyz": {
+                "id": 1234567,
                 "name": "xyz",
                 "full_name": "Test-Organization/xyz",
                 "default_branch": "master",
diff --git a/tests/sentry/integrations/github/test_issues.py b/tests/sentry/integrations/github/test_issues.py
index 8a6727cc3a58c3..50f59970113f34 100644
--- a/tests/sentry/integrations/github/test_issues.py
+++ b/tests/sentry/integrations/github/test_issues.py
@@ -67,8 +67,8 @@ def test_get_create_issue_config_without_group(self) -> None:
             json={
                 "total_count": 2,
                 "repositories": [
-                    {"full_name": "getsentry/sentry", "name": "sentry"},
-                    {"full_name": "getsentry/other", "name": "other", "archived": True},
+                    {"id": 1, "full_name": "getsentry/sentry", "name": "sentry"},
+                    {"id": 2, "full_name": "getsentry/other", "name": "other", "archived": True},
                 ],
             },
         )
@@ -642,8 +642,8 @@ def test_repo_dropdown_choices(self) -> None:
             json={
                 "total_count": 2,
                 "repositories": [
-                    {"full_name": "getsentry/sentry", "name": "sentry"},
-                    {"full_name": "getsentry/other", "name": "other", "archived": True},
+                    {"id": 1, "full_name": "getsentry/sentry", "name": "sentry"},
+                    {"id": 2, "full_name": "getsentry/other", "name": "other", "archived": True},
                 ],
             },
         )
@@ -691,8 +691,8 @@ def test_linked_issue_comment(self) -> None:
             json={
                 "total_count": 2,
                 "repositories": [
-                    {"full_name": "getsentry/sentry", "name": "sentry"},
-                    {"full_name": "getsentry/other", "name": "other", "archived": True},
+                    {"id": 1, "full_name": "getsentry/sentry", "name": "sentry"},
+                    {"id": 2, "full_name": "getsentry/other", "name": "other", "archived": True},
                 ],
             },
         )
@@ -745,7 +745,7 @@ def test_default_repo_link_fields(self) -> None:
             "https://api.github.com/installation/repositories",
             json={
                 "total_count": 1,
-                "repositories": [{"name": "sentry", "full_name": "getsentry/sentry"}],
+                "repositories": [{"id": 1, "name": "sentry", "full_name": "getsentry/sentry"}],
             },
         )
         event = self.store_event(
@@ -774,7 +774,7 @@ def test_default_repo_create_fields(self) -> None:
             "https://api.github.com/installation/repositories",
             json={
                 "total_count": 1,
-                "repositories": [{"name": "sentry", "full_name": "getsentry/sentry"}],
+                "repositories": [{"id": 1, "name": "sentry", "full_name": "getsentry/sentry"}],
             },
         )
         responses.add(
diff --git a/tests/sentry/integrations/github_enterprise/test_integration.py b/tests/sentry/integrations/github_enterprise/test_integration.py
index 9fc9773591e815..b4e59be9fa0ea6 100644
--- a/tests/sentry/integrations/github_enterprise/test_integration.py
+++ b/tests/sentry/integrations/github_enterprise/test_integration.py
@@ -370,8 +370,18 @@ def test_get_repositories_search_param(self, mock_jwtm: MagicMock, _: MagicMock)
             f"{self.base_url}/search/repositories?{querystring}",
             json={
                 "items": [
-                    {"name": "example", "full_name": "test/example", "default_branch": "main"},
-                    {"name": "exhaust", "full_name": "test/exhaust", "default_branch": "main"},
+                    {
+                        "id": 10,
+                        "name": "example",
+                        "full_name": "test/example",
+                        "default_branch": "main",
+                    },
+                    {
+                        "id": 11,
+                        "name": "exhaust",
+                        "full_name": "test/exhaust",
+                        "default_branch": "main",
+                    },
                 ]
             },
         )
@@ -381,8 +391,18 @@ def test_get_repositories_search_param(self, mock_jwtm: MagicMock, _: MagicMock)
         )
         result = installation.get_repositories("ex")
         assert result == [
-            {"identifier": "test/example", "name": "example", "default_branch": "main"},
-            {"identifier": "test/exhaust", "name": "exhaust", "default_branch": "main"},
+            {
+                "identifier": "test/example",
+                "name": "example",
+                "external_id": "10",
+                "default_branch": "main",
+            },
+            {
+                "identifier": "test/exhaust",
+                "name": "exhaust",
+                "external_id": "11",
+                "default_branch": "main",
+            },
         ]
 
     @patch("sentry.integrations.github_enterprise.integration.get_jwt", return_value="jwt_token_1")
@@ -640,8 +660,18 @@ def test_get_organization_config(self) -> None:
             json={
                 "total_count": 2,
                 "repositories": [
-                    {"name": "repo1", "full_name": "Test-Organization/repo1", "archived": False},
-                    {"name": "repo2", "full_name": "Test-Organization/repo2", "archived": False},
+                    {
+                        "id": 1,
+                        "name": "repo1",
+                        "full_name": "Test-Organization/repo1",
+                        "archived": False,
+                    },
+                    {
+                        "id": 2,
+                        "name": "repo2",
+                        "full_name": "Test-Organization/repo2",
+                        "archived": False,
+                    },
                 ],
             },
         )
diff --git a/tests/sentry/integrations/gitlab/test_issues.py b/tests/sentry/integrations/gitlab/test_issues.py
index acb23b01b7908d..b0098d9cfe9d34 100644
--- a/tests/sentry/integrations/gitlab/test_issues.py
+++ b/tests/sentry/integrations/gitlab/test_issues.py
@@ -71,8 +71,8 @@ def test_get_create_issue_config(self) -> None:
                 "required": True,
                 "type": "select",
                 "label": "GitLab Project",
-                "choices": [(1, "getsentry / sentry"), (22, "getsentry / hello")],
-                "defaultValue": 1,
+                "choices": [("1", "getsentry / sentry"), ("22", "getsentry / hello")],
+                "defaultValue": "1",
             },
             {
                 "name": "title",
@@ -108,8 +108,8 @@ def test_get_link_issue_config(self) -> None:
                 "name": "project",
                 "label": "GitLab Project",
                 "type": "select",
-                "default": 1,
-                "choices": [(1, "getsentry / sentry"), (22, "getsentry / hello")],
+                "default": "1",
+                "choices": [("1", "getsentry / sentry"), ("22", "getsentry / hello")],
                 "url": autocomplete_url,
                 "updatesForm": True,
                 "required": True,
@@ -250,11 +250,11 @@ def test_create_issue_default_project_in_group_api_call(self) -> None:
                 "name": "project",
                 "required": True,
                 "choices": [
-                    (1, "getsentry / sentry"),
-                    (10, "This_is / a_project"),
-                    (22, "getsentry / hello"),
+                    ("1", "getsentry / sentry"),
+                    ("10", "This_is / a_project"),
+                    ("22", "getsentry / hello"),
                 ],
-                "defaultValue": project_id,
+                "defaultValue": str(project_id),
                 "type": "select",
                 "label": "GitLab Project",
             },
@@ -318,11 +318,11 @@ def test_create_issue_default_project_not_in_api_call(self) -> None:
                 "name": "project",
                 "required": True,
                 "choices": [
-                    (10, "This_is / a_project"),
-                    (1, "getsentry / sentry"),
-                    (22, "getsentry / hello"),
+                    ("10", "This_is / a_project"),
+                    ("1", "getsentry / sentry"),
+                    ("22", "getsentry / hello"),
                 ],
-                "defaultValue": project_id,
+                "defaultValue": str(project_id),
                 "type": "select",
                 "label": "GitLab Project",
             },
diff --git a/tests/sentry/integrations/vsts/test_integration.py b/tests/sentry/integrations/vsts/test_integration.py
index 1919c95ac49229..d3868469ae89a7 100644
--- a/tests/sentry/integrations/vsts/test_integration.py
+++ b/tests/sentry/integrations/vsts/test_integration.py
@@ -728,7 +728,11 @@ def test_get_repositories(self) -> None:
 
         result = installation.get_repositories()
         assert len(result) == 1
-        assert {"name": "ProjectA/cool-service", "identifier": self.repo_id} == result[0]
+        assert {
+            "name": "ProjectA/cool-service",
+            "identifier": str(self.repo_id),
+            "external_id": str(self.repo_id),
+        } == result[0]
 
     def test_get_repositories_identity_error(self) -> None:
         self.assert_installation()
diff --git a/tests/sentry/integrations/vsts/test_repository.py b/tests/sentry/integrations/vsts/test_repository.py
index 4c4a9ac95343f9..7b72e69a464e74 100644
--- a/tests/sentry/integrations/vsts/test_repository.py
+++ b/tests/sentry/integrations/vsts/test_repository.py
@@ -28,17 +28,17 @@ def provider(self):
     def test_compare_commits(self) -> None:
         responses.add(
             responses.POST,
-            "https://visualstudio.com/_apis/git/repositories/None/commitsBatch",
+            "https://visualstudio.com/_apis/git/repositories/123/commitsBatch",
             body=COMPARE_COMMITS_EXAMPLE,
         )
         responses.add(
             responses.GET,
-            "https://visualstudio.com/_apis/git/repositories/None/commits/6c36052c58bde5e57040ebe6bdb9f6a52c906fff/changes",
+            "https://visualstudio.com/_apis/git/repositories/123/commits/6c36052c58bde5e57040ebe6bdb9f6a52c906fff/changes",
             body=FILE_CHANGES_EXAMPLE,
         )
         responses.add(
             responses.GET,
-            "https://visualstudio.com/_apis/git/repositories/None/commits/6c36052c58bde5e57040ebe6bdb9f6a52c906fff",
+            "https://visualstudio.com/_apis/git/repositories/123/commits/6c36052c58bde5e57040ebe6bdb9f6a52c906fff",
             body=COMMIT_DETAILS_EXAMPLE,
         )
 
@@ -65,6 +65,7 @@ def test_compare_commits(self) -> None:
                 provider="visualstudio",
                 name="example",
                 organization_id=self.organization.id,
+                external_id="123",
                 config={"instance": self.base_url, "project": "project-name", "name": "example"},
                 integration_id=integration.id,
             )