Solution : https://service.sap.com/sap/support/notes/384128 (SAP Service marketplace login required)
Key words :
sap enhancement cnex0012 'derive external network number, additional key words cj2d, edited wbs element number, function module exit_saplcoko_002, project coding mask, attached program correction, project planning board, wbs number', project builder, structure planning
Related Notes :
| 357075 | Calling up CNEX0012 with edited WBS element no. |
| 325579 | Endless loop in Project Builder when creating network |