Solution : https://service.sap.com/sap/support/notes/91440 (SAP Service marketplace login required)
Key words :
additional key words udef, attached advance corrections, f1 function, types defined, screen completely, program error, characteristics, prerequisites
Related Notes :
| 84955 | 4.5A: No values set for UDEF characteristics |
| 84324 | Input of UDEF characteristics in configuration |
| 83982 | 3.1I: Check table and function for UDEF data type |
| 76876 | Problem:Valuatn characteristic of type user-defined |