Attach invoices, collect vendor forms, request missing proof. Every one is ready to run, and you can adjust it in plain language.
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.
Keep pending bills tied to the right invoice revision for review.
Your pending bill carries the corrected invoice with its earlier version linked when the match is clear.