Gather review files, compare deal terms, return incomplete forms. Every one is ready to run, and you can adjust it in plain language.
Mark client bill tasks with received-versus-invoiced quantity gaps.
Your bill reviewer sees the quantity gap or missing receipt ID on the task, so they can decide what to do with the supplier bill.
Attach corrected supplier invoices to the right client bills.
Your pending bill carries the corrected invoice with its earlier version linked when the match is clear.