Message Number list used by SAP ABAP Class CL_UC_TASK_AUTHORITY_CHECK (Authorization Check for Tasks)
SAP ABAP Class CL_UC_TASK_AUTHORITY_CHECK (Authorization Check for Tasks) is using
# Object Type Object Name Object Description Note
     
1 Message Number  UCS0 - 300 You have no authorization for activity '&1'
2 Message Number  UCS0 - 301 Authorization object R_UC_TASK is not available
3 Message Number  UCS0 - 304 Username &1 is invalid