SAP ABAP Program MASSBACK (Mass Maintenance in the Background) is using

• Data Element (1)
• Table/Structure Field (13)
• Function Module (2)
• Message Class (1)
• Message Number (2)
• Table (6)

#	Object Type	Object Name	Object Description	Note
1	Message Number	M& - 102	Variant not found
2	Message Number	M& - 130	Object type & does not exist