Does R4304020 use Item to attempt match if populated in F0411Z1T?

We are attempting to set up and use automated voucher match. Would like a question answered definitively. The documentation for setup seems to read if you setup the supplier master without item information required for match, that is doesn't use item for match, it uses order info only. However, it seems in testing that if 2nd Item is populated in F0411Z1T, R4304020 is using it for attempted validation. Can someone confirm that if 2nd item is populated in F0411Z1T it will use it for match even though supplier master is setup that item is not required?