Message Number list used by SAP ABAP Function Module ALE_MODEL_INFO_GET (Read which systems want message type)
SAP ABAP Function Module ALE_MODEL_INFO_GET (Read which systems want message type) is using
# Object Type Object Name Object Description Note
     
1 Message Number  B1 - 003 Could not determine recipients for message type &
2 Message Number  B1 - 004 A separate logical system is not defined for client &