Solution : https://service.sap.com/sap/support/notes/358473 (SAP Service marketplace login required)
Key words :
system issues error message gb201, additionally include user-defined fields, 'exit form pool & copied, additional key words gb01, user-defined fields, standard fields corresponds, user-defined field, attached source code, start report rgugbr00, 'generate substn exp
Related Notes :
| 440186 | FAQ 2: Validation and substitution in the project |