Solution : https://service.sap.com/sap/support/notes/887581 (SAP Service marketplace login required)
Key words :
extended classic scenario, vendor product number, purchase order item, partner_prod reason, solution implement, attached instructions, transferred, prerequisites, corrections
Related Notes :
892206 | SRM invoice: Enlarge Vendor product number to 35 chars |
827614 | Vendor product number truncated with backend PO |
827487 | Vendor product number truncated when Last Delivery flag set |
488619 | Vendor's material numbers with more than 22 characters |