What is the Duplicate Invoices page for?

The same supplier bill posted twice — same supplier, same invoice number, same total — within one company or, the case a single Xero organisation can never see, across the group's entities. The page reads the stored scan (rebuilt overnight, or on Recheck), shows each cluster with its copies and how much was billed twice, and lets Accounts rule on it. An open copy can still be voided and the money never leaves; a paid one is claimed back with a credit note. Nothing here deletes an invoice: a duplicate is shown with what it duplicates, and the fix happens in Xero. You enter: Which side to check — supplier bills or sales invoices — and the filters: open or reviewed, cross-company or within one, the confidence tier, year and month, grouping, and one Xero organisation; The ruling on each cluster — Confirm duplicate, Mark resolved, or Dismiss as not a duplicate — with an optional note; or Resolve all / Dismiss all over what is shown; Recheck, when you want the scan rerun now rather than waiting for tonight. Saral fills: The clusters, from the stored group-wide scan: supplier, invoice number, total, how many copies, where they sit, the confidence tier (A invoice number, B counter, C reference variant), the fit score across five signals, and the dates; Billed twice and Recoverable by voiding — the exposure and the part still open — per cluster, per organisation and for the group; the time the scan was computed; The suggested action for each cluster: void the open copy, or reclaim a settled one with a supplier credit note; and an automatic not-a-duplicate ruling for different projects from a CIS subcontractor, which Confirm overrules; Not checked yet when the scan has never run for this group — never an empty table, because a zero would be a claim about data nobody has looked at. It produces: A ruling on each cluster, with who made it and when, that survives the next scan — a dismissed pair is not flagged again; The worklist as an Excel download or an email, with the same figures the page shows; Fix-in-Xero links on each copy, so the void or credit note is raised in the right organisation. Where the settings live: There is no setting on this page: the matching rule is the checker's own, and the scan runs for the whole group overnight. Ruling on a cluster needs the invoice-approve permission, granted on Settings → Users. The invoices it compares are the ones the Xero sync holds, so a company connected on Settings → Xero is in the check from its next sync.