In our landscape SAP CPI is connected to S4 system and any data transfer from SAP CPI to S4 is done by first executing and collecting csrf token from S4 system.
We have a dedicated interface in CPI to fetch csrf token from S4 system. But since last few days its failing with error :HTTP operation failed invoking <then complete url name> with statusCode: 401
401 is usually associated with user credential issues but we check the user used for connection in S4 and that is productive.
We do not see any issue in the cloud connector and smicm of S4.