Solution : https://service.sap.com/sap/support/notes/315592 (SAP Service marketplace login required)
Key words :
system generates error message f6039, additional key words substitution, function module returns, function modules, financial accounting, commitment item &1, commitment item, commitment items, conversion exit, field fipos
Related Notes :
492847 | MIRO:F6039 Commitment item &1 does not exist |
48121 | User Exits in Validations/Substitutions |