Solution : https://service.sap.com/sap/support/notes/542537 (SAP Service marketplace login required)
Key words :
system issues error message v1391, issues error message v1391, manual product selection, system responses due, sales document type, alternative material dependent, alternative materials displayed, general material determination, automatic material substitution, manual material substitution
Related Notes :
| 537783 | Man.prod.sel.:plant determ. aftr selectn of alternative matl |