Separate proposed, approved, billed, collected, and disputed change orders for a reviewable project billing handoff. The working definition should name the covered entities, accounts, period, source systems, cutoff, preparer, reviewer, and the event that closes a row. A queue is useful only when another person can tell what is ready, what is waiting, and what decision remains protected.
For this workflow, record project, change-order ID, request date, customer status, approved value, billing eligibility, invoice reference, collection status, cost impact, owner, and evidence link. Use stable identifiers from the governing systems. Free-text notes may explain an exception, but they should not replace the transaction ID, source date, amount, status, or evidence location that lets the reviewer reproduce the result.