SAP ABAP Program RMPREF20 (Preference Determination: Check Selections) is using

• Table/Structure Field (16)
• Function Module (1)
• Message Class (1)
• Message Number (2)
• Table (2)

#	Object Type	Object Name	Object Description	Note
1	Message Number	00 - 208	&
2	Message Number	EI - 101	& Specify at least one application or usage