diff --git a/lib/quickbooks/service/customer.rb b/lib/quickbooks/service/customer.rb
index ad45121e..68f11dc4 100644
--- a/lib/quickbooks/service/customer.rb
+++ b/lib/quickbooks/service/customer.rb
@@ -7,6 +7,11 @@ def delete(customer)
         update(customer, :sparse => true)
       end
 
+      def fetch_by_id(id, params = {})
+        url = "#{url_for_base}/customer/#{id}"
+        fetch_object(model, url, params)
+      end
+
       private
 
       def model
diff --git a/lib/quickbooks/service/payment.rb b/lib/quickbooks/service/payment.rb
index 569054c6..e50ecc63 100644
--- a/lib/quickbooks/service/payment.rb
+++ b/lib/quickbooks/service/payment.rb
@@ -6,6 +6,11 @@ def delete(payment)
         delete_by_query_string(payment)
       end
 
+      def fetch_by_id(id, params = {})
+        url = "#{url_for_base}/payment/#{id}"
+        fetch_object(model, url, params)
+      end
+
       def void(entity, options = {})
         raise Quickbooks::InvalidModelException.new(entity.errors.full_messages.join(',')) unless entity.valid?
         xml = entity.to_xml_ns(options)