https://userapps.support.sap.com/sap/support/knowledge/en/3599531
3599531 - MEPO 043 creating Purchase order through API API_PURCHASEORDER_2
Creating a Purchase Orders through the Purchase Order API : API _PURCHASEORDER_PROCESS_SRV/A_PurchaseOrder an error message appears MEPO /043 Enter Quantity
purchase ordercreatingapipurchaseorder