3526698 - Error ME045: "G/L account cannot be used (please correct)" during Purchase Requisition or Purchase Order creation - SAP S/4HANA

• When creating a Purchase Requisition (PR) or Purchase Order (PO) using transaction ME51N or ME21N in SAP S/4HANA, the system displays the error message ME045.
• G/L account & cannot be used (please correct)
• Clicking the "?" icon provides the diagnosis of the error message, which highlights the problematic field:
  Comparison of the field selection strings from the G/L account & and the account assignment category X reveals that there is an incompatible combination of field selections for the field selection group 'CO/PP order'.
  

• Materials Management (MM)
• SAP ERP Central Component
• SAP ERP
• SAP enhancement package for SAP ERP
• SAP enhancement package for SAP ERP, version for SAP HANA
• SAP S/4HANA

SAP S/4HANA, Sourcing and Procurement, Central Purchasing, Purchase Requisition, Purchase Order, OME9, OBC4, Error ME045, SAP Note 3290906, ME51N, ME21N, field status group, account assignment mismatch, suppress field, mandatory entry, optional entry, FS03, configuration error , KBA , MM-PUR-GF-ACC , Account assignment , MM-SRV-ACC , Account Assignment , Problem