3791706 - Error 'Vendor must be set' appears in Contract Request during Contract Terms creation on a suite integrated contract

Error 'Vendor must be set' appears in Contract Request during Contract Terms creation on a suite integrated contract even when Partitioned Supplier is configured under Supplier Manager in Core Administration.

vendor must be set, contract terms, downstream, partitioned supplier, common supplier, inactive supplier, supplier link, relink supplier, publish contract, vendor not populating, supplier mapping, contract workspace, ariba contracts, error message , KBA , BNS-ARI-PUR-ACC , Contract Compliance , BNS-ARI-PUR-ACC-CON , Contracts/Contract Requests , Problem