HCP_GRANT_ROLE_TO_USER not found

Hello,

I as used to grant design time role in my trial HANA cloud with "CALL HCP.HCP_GRANT_ROLE_TO_USER(...)" but this procedure has disappeared from the HCP schema.

I have tried HCP.HCP_GRANT_ACTIVATED_ROLE(S) but it is not working on my XS app secured with .xsaccess and .xsprivileges and with a role. The app always says that I don't have privileges.

Can someone tell me how can do it now?

Thanks in advance.