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2757680 - ME59N inconsistent error messages for the same Purchase Requisition


When using ME59N, you notice the following strange scenarios:

  • If a PR is assigned with only the purchasing organization (fixed vendor is missing), ME59N provides error "Different source maintained for requisition". This does not make any sense.
  • If the same PR undergoes the same run, by itself, the system correctly identifies the error and provides error "Enter a vendor".

You'd like to know why this is, especially for planning a custom enhancement (for example, automated PO creation via BAPI).



  • Materials Management (MM)
  • SAP enhancement package for SAP ERP
  • SAP enhancement package for SAP ERP version for SAP HANA


SAP ERP Central Component all versions ; SAP ERP all versions ; SAP S/4HANA all versions ; SAP enhancement package for SAP ERP all versions ; SAP enhancement package for SAP ERP, version for SAP HANA all versions


EBAN-ZUGBA , fixed source of supply , desired vendor , Wunschlieferant , fester Lieferant , Bezugsquelle , RM06BB20 , RM06BB30 , ME261 , ME 261 , No suitable purchase requisitions found , Es wurden keine passenden Bestellanforderungen gefunden, bestellanforderung, banf , zugeordnet, bezugsquelle , fester lieferant , fixed vendor supplier , ME_REQUISITION_SET_ZUGBA , KBA , MM-PUR-PO , Purchase Orders , MM-PUR-PO-GUI , Userinterface - Purchase Orders , MM-PUR-SQ , Sources of Supply , Problem

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