Hi Patxi
I was about to post a question in the forum and then I came across this page. I am glad I found your question. I realized that we have the same issue in our system.
One of our SAP environment is on FINBASIS 600 and the other on FINBASIS 717.
In the one with FINBASIS 600, I see the exact issue. I dont see any of the FIN_FSCM_CCDxx business functions.