diff --git a/openapi/v1/manageData.yaml b/openapi/v1/manageData.yaml
index ebc052b5..9feab064 100644
--- a/openapi/v1/manageData.yaml
+++ b/openapi/v1/manageData.yaml
@@ -100,6 +100,7 @@ paths:
          * `SAMPLE_GROUP`
           * `LIBRARY_GROUP`
           * `PREPARATION_GROUP`
+          * `CELL_GROUP`
           * `TABULAR_DATA`
          * `GENE_VARIANT`
          * `FLOW_CYTOMETRY`
@@ -108,7 +109,8 @@ paths:
 
          Moreover, if the selected object is linked to any other data, the endpoint will also delete the linked data associated with it according to the specified rules:
          * If you delete a `STUDY`, the entire study with all the listed group types and files, will be removed.
-         * Deleting a `SAMPLE_GROUP` will result in the removal of all samples associated with this sample group, along with any linked `TABULAR_DATA`/`GENE_VARIANT`/`FLOW_CYTOMETRY`/`LIBRARY_GROUP`/`PREPARATION_GROUP`. The linked `TABULAR_DATA`/`GENE_VARIANT`/`FLOW_CYTOMETRY` will be deleted, even if it is linked to another metadata group.
+         * Deleting a `SAMPLE_GROUP` will result in the removal of all samples associated with this sample group, along with any linked `TABULAR_DATA`/`GENE_VARIANT`/`FLOW_CYTOMETRY`/`LIBRARY_GROUP`/`PREPARATION_GROUP`/`CELL_GROUP`. The linked `TABULAR_DATA`/`GENE_VARIANT`/`FLOW_CYTOMETRY`/`CELL_GROUP` will be deleted, even if it is linked to another metadata group.
+         * Deleting a `LIBRARY_GROUP` or `PREPARATION_GROUP` will result in the removal of all libraries or preparations associated with this group, along with any linked `TABULAR_DATA`/`CELL_GROUP`.
          * If you delete `TABULAR_DATA`/`GENE_VARIANT`/`FLOW_CYTOMETRY`, all associated data, such as links and runs will be removed from ODM.
          * If you delete `REFERENCE_GENOME`, searching for variant by variantFeature (genes) won't be available for linked VCF groups.
          * If you delete `FILE`, the file will be removed from ODM.