Message Number list used by SAP ABAP Function Module SUSR_REFUSER_CHECK (SUSR_REFUSER_CHECK)
SAP ABAP Function Module SUSR_REFUSER_CHECK (SUSR_REFUSER_CHECK) is using
# Object Type Object Name Object Description Note
     
1 Message Number  01 - 339 Reference user &1 does not exist
2 Message Number  01 - 391 User &1 is not a reference user (see long text)
3 Message Number  01 - 527 You are not authorized to change the reference user assignment &3