Duplicate identity Hash and document numbers must not already be processed.
Required fields Project, vendor, document type, date, and key document numbers must be known or explicitly waived.
Line identity MID/HID/material should resolve through FileMaker, hardware matrix, lumber matrix, aliases, or flagged derivation.
Source evidence Original document, OCR text, and bbox/page evidence should stay reachable from every corrected value.
Cross-doc match Quote, PO, order confirmation, BOL, invoice, statement, and billing quantities/prices must reconcile or show open deltas.
Override discipline Any manual override requires reviewer, timestamp, reason, and downstream impact.