Solution : https://service.sap.com/sap/support/notes/536500 (SAP Service marketplace login required)
Key words :
attached notes exist, related notes, project system, calling network'
Related Notes :
| 390244 | No processing of invoice lists with BAPI |
| 123211 | CO888 in CN22, CN23 when calling network |
| 88699 | Termination message CO888: 'Internal error when creating ITA |