Solution : https://service.sap.com/sap/support/notes/763605 (SAP Service marketplace login required)
Key words :
terms indication output cl_message_handler_mm mmpur_message_forceduser exitmepo reason, generate customer-specific system messages, customer-specific system messages, purchase order transactions me21n, mmpur_business_obj_id macro automatically sets, mm06e005 customer enhancement, call transaction se11, menu path -->utilities -->, program error solution, mmcnt type group
Related Notes :
855829 | EXIT_SAPMM06E_012: System message is not deleted (III) |
822087 | EXIT_SAPMM06E_012: System message is not deleted (II) |
310154 | ME21N/ME51N: Customer-specific check, generating error log |