People who oversee an organization's accounting work, financial records, and transaction reviews.
Your bill reviewers get the supplier invoice and any mismatches together before they decide what to approve.
Your approver sees the purchase order link and line differences on the bill before making a decision.
Your finance team sees the decision and next step in its task, with a link back to the bill.
Your AP reviewer sees a possible duplicate and its earlier invoice before approval or payment.
Your requester knows exactly what to add, and your approver can see why the bill is waiting.