3686215 - Unable to create multiple Purchase Orders in one changeset using oData APIs

• When attempting to create multiple Purchase Orders (POs) in one changeset using API_PURCHASEORDER_PROCESS_SRV or API_PURCHASEORDER_2, only the first PO is created successfully. The other POs are ignored, and the response of the first PO is returned.
• Error message below may be seen when testing with oData V4 for this scenario:
  • "An exception was raised" (SY/530) 
  • "Unspecified provider error occurred. See Error Context and Call Stack." (/IWBEP/CM_V4S_RUN 000)

• Materials Management (MM)
• SAP S/4HANA

purchase order api, odata v4, api_purchaseorder_process_srv, api_purchaseorder_2, multiple POs, changeset issue, batch request, create multiple purchase orders, $batch request, purchase order header, POST PurchaseOrder, /sap/opu/odata/sap/API_PURCHASEORDER_PROCESS_SRV, odata v2 , KBA , MM-PUR-PO-API , OData APIs - Purchase Order , Problem