3457875 - Unable to extend the multiple distribution channels to existing customer

• The customer was unable to extend multiple distribution channels to existing customers in their SAP S/4HANA Cloud system.
• The customer was using the API API_BUSINESS_PARTNER and the PATCH operation to access the A_CustomerSalesArea entity.

SAP S/4HANA Cloud 2402

The issue was due to the standard behavior of the PATCH method, which is not suitable for extending the field.

The customer can use the API /sap/opu/odata/sap/API_BUSINESS_PARTNER/A_Customer('xxxx')/to_CustomerSalesArea to extend the Business Partner to another distribution channel.

The API link is https://api.sap.com/api/API_BUSINESS_PARTNER/path/post_A_Customer___Customer____to_CustomerSalesArea

Help portal link is https://help.sap.com/docs/SAP_S4HANA_CLOUD/3c916ef10fc240c9afc594b346ffaf77/9d60045826552246e10000000a441470.html?locale=en-US

distribution channel, to_CustomerSalesArea, PATCH method, API_BUSINESS_PARTNER , KBA , LO-MD-BP-ODT , OData Service for Business Partner , How To