Can we put an invoice on hold from IDR, where no PO is quoted/shown?

Summary:

We are looking to invoke a No PO/No Pay policy, so would like invoices imported from IDR to be placed on hold if no purchase order was found on the invoice.

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):