Change Request Mapping

Hello,

I have a question about what exactly the Change Request Mapping should do, if I am understanding this correctly.

Reading the "Usage" column- Create templates that are used to compare staged purchase order acknowledgement record fields and field values with target purchase order system record fields and field values. If a difference exists, change request records are created by the Change Load process.

For example, if I didn't want to accept a UOM change from the Supplier's Purchase Order Acknowledgement, if I excluded that value from the PO_LINE_EC target, we wouldn't accept the change. Correct?

Thanks! WMJ