Solution : https://service.sap.com/sap/support/notes/1056595 (SAP Service marketplace login required)
Key words :
sap support portal user data maintenance, message 'user <s-user-id> - <authorization, rfc destination sap-oss works, named s-user-id, smsy menu utilities - analyses, sap backend system oss, multiple sap customer numbers, installation number <installation number>', sap support portal, destination sap-oss
Related Notes :
| 1082010 | Administration of several customer numbers |
| 1023598 | SAP Solution Manager Service Desk for service providers |