Solution : https://service.sap.com/sap/support/notes/1156951 (SAP Service marketplace login required)
Key words :
vendor - service agent relationships, sp03/sp04 solution apply, srm-ebp-ca-prs, customer partner function, terms partner table, partner schema reason, prerequisites srm 6, partner screens, partner screen, additional line
Related Notes :
1251843 | Not possible to add multiple partners when using Add button |
1138965 | Cust. Partner Function with Cardinality C not displayed |