3744416 - Error MMPUR_PO_INTERCOMP111 when creating intercompany purchase order with Account Assignment at item level

• When attempting to create an Intercompany Stock Transport Order (IC-STO) using the Advanced Intercompany Stock Transfer process (scope item 5HP, document type NBIC) via the Create Purchase Order – Advanced application, the following error is displayed: "Intercompany stock transfer only allows receipt into stock" — Message No. MMPUR_PO_INTERCOMP111.
• The error occurs specifically when an account assignment category (e.g., project assignment or Make-to-Order special stock type Q) is entered at the purchase order item level. The purchase order cannot be saved and the intercompany process cannot proceed.

SAP S/4HANA Cloud Public Edition

mmpur_po_intercomp111, intercompany stock transfer, advanced intercompany stock transfer, nbic, account assignment, item-level account assignment, purchase order, receipt into stock, group valuation, 5w2, po error, s/4hana cloud, procurement, stock transfer order, sto , KBA , MM-FIO-PUR-PO-2CL , Fiori UI for Purchase Orders (Public Cloud) , Problem