Any Way to NOT Read the PO when Turning on IDR?

Summary:

We are implementing IDR in our environment, and our AP team does NOT want IDR to auto-populate the purchase order field. Is there a way to not include that field in the auto-reading?

Content (please ensure you mask any confidential information):

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):