Help! Does anyone run into this issue and do you have a solution?

ISSUE: We允许for the vendor to be updated on an expense type even if the value is being populated/pulled from the credit card.

This is causing us a few issues as we have users putting in some values that aren't even close to the actual vendor.

AN EXAMPLE:We have seen a credit card transaction with the vendor: Escape Room Co, but the user typed over it and entered Delta Airlines. Granted, when you travel, you are so crammed in that it DOES feel like an escape room and you want to escape! LOL.

We think the user just updated the wrong lines, but this is all too common and our expense processeors don't always catch it.

Anyway, Here is what we are trying to solve for:
Is there a way to set a rule/field setting thatcan use the expense type as an indicator such that the vendor value can only come from the credit card transaction? It is grayed out for manual entry.Should there be no credit card transaction tied to the expense type, then allow the vendor field to be manually entered or changed.

Thanks for any help in advance!