Message Class list used by SAP ABAP Class CL_UPS_STS_CUSTOMIZING (Customizing STS)
SAP ABAP Class CL_UPS_STS_CUSTOMIZING (Customizing STS) is using
# Object Type Object Name Object Description Note
     
1 Message Class  UPS1 SEM-BPS Status and Tracking System Messages
2 Message Class  UXB Messages Package UXB