Solution : https://service.sap.com/sap/support/notes/77268 (SAP Service marketplace login required)
Key words :
system generates error message gb309, internal wbs number bseg-projk, runtime error convt_no_number occurs, additional key words validation, fields bseg-projk, function module conversion_exit_xxxxx_output, user exits refer, output conversion routine, conversion routine xxxxx, conversion routine konpr
Related Notes :
| 440186 | FAQ 2: Validation and substitution in the project |
| 351634 | Sub-fields or LIKE with WBS element (POSID) |
| 178573 | Activation of validations |
| 116276 | Problems with expressions with subfields |
| 48121 | User Exits in Validations/Substitutions |