SAP ABAP Program RGTABKEY_VALIDATION (GTABKEY: Display Keys) is using

• Data Element (6)
• Table/Structure Field (37)
• Function Module (7)
• Message Class (2)
• Message Number (2)
• Table (7)

#	Object Type	Object Name	Object Description	Note
1	Message Class	TG	Messages for Repository Switch
2	Message Class	TR	Change and Transport System