SAP ABAP Program MJI0FE07 (IS-M: Blocking Functions for Circulation Book) is using

• Table/Structure Field (18)
• Function Module (2)
• Message Class (1)
• Message Number (2)
• Table (2)

#	Object Type	Object Name	Object Description	Note
1	Message Number	JI - 421	Circulation book update blocked by user &1
2	Message Number	JI - 422	Internal error occurred when locking on enqueue server