Solution : https://service.sap.com/sap/support/notes/435027 (SAP Service marketplace login required)
Key words :
additional key words business partner, attached source code corrections, user-defined role types, sap bp role categories, bp role types, symptom sap bp, role categories, conversion customizing, set correctly, table tpz6
Related Notes :
| 398888 | BP_TR1: Composite note and FAQs about bus partner conversion |