Solution : https://service.sap.com/sap/support/notes/216273 (SAP Service marketplace login required)
Key words :
system issues information message cn011, additional key words cj2d, processes message cn011, attached program correction, project planning board, external number assignment, permitted external number, external network number, external number, system terminates
Related Notes :
| 340000 | Creating network w/ external number: MESSAGE_TYPE_X |