Attach invoices, collect vendor forms, request missing proof. Every one is ready to run, and you can adjust it in plain language.
Show unresolved invoice matches before bill review.
Your bills carry supplier invoice PDFs for review, and your payables person sees any match that needs a decision.
Put the current supplier invoice PDF on each matched bill.
Your reviewers find the invoice PDF on the pending bill. Your payables person sees any match that needs a decision.