SAP ABAP Message Number REV - 020 (REV) is used by

• Class (1)
• Function Module (2)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Class	CL_DEFECT_ENTRY_ACL Method: CHECK_REVISION_CHANGE	Defect log entries	DIACL_APP	EA-PLM	EA-APPL