https://userapps.support.sap.com/sap/support/knowledge/en/2684363
2684363 - Error MDG_BS_ECC_BP_CHECK037 when creating Purchasing data for vendors using XK99 | SAP...
Error when creating Purchasing data for vendors using XK99 Mandatory partner function XX is missing for purchasing org. XXXX(MDG_BS_ECC_BP_CHECK037) Mandatory...