Message Number list used by SAP ABAP Function Module UMK_NM_PROFILE_NAME_CHECK (Check profile name)
SAP ABAP Function Module UMK_NM_PROFILE_NAME_CHECK (Check profile name) is using
# Object Type Object Name Object Description Note
     
1 Message Number  UMK - 028 The first character of the profile name must be a letter
2 Message Number  UMK - 029 Profile names may only contain letters, digits and "_"