SAP ABAP Program RFKKGL20 (Check General Ledger Documents) is using

• Table/Structure Field (19)
• Function Module (4)
• Message Class (2)
• Message Number (6)
• Program (15)
• Table (1)

#	Object Type	Object Name	Object Description	Note
1	Message Class	>0	Contract A/R and A/P: Reserved message class
2	Message Class	>U	Contract A/R and A/P: Utilities