Solution : https://service.sap.com/sap/support/notes/317877 (SAP Service marketplace login required)
Key words :
symptom profitability segment mepoaccounting-profit_segm_no, additional key words profitability segment, pure internal number, function module interfaces, bapi design guidelines, bapi explorer, structure bapi_profitability_segment, bapis bapi_po_create1, program error, /3 support package
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