How to Detect and Handle Duplicate Invoices

Use source files, invoice identifiers, amounts, and dates to investigate possible duplicates safely.

Designed for: reviewers processing files from multiple channels
Practical result: stop duplicate records without deleting legitimate revisions

The specific decision behind How to Detect and Handle Duplicate Invoices

This guide is complete only when a reviewer can stop duplicate records without deleting legitimate revisions. The original document remains the evidence; recognized fields make that evidence searchable and usable. The following checkpoints focus on this exact problem instead of treating every receipt or invoice as the same workflow.

Checkpoint 1: Compare supplier, invoice number, amount, currency, and date

The completion signal is that the comparison uses several fields. Do not close the checkpoint by deleting the first match automatically; that shortcut removes context needed later.

Checkpoint 2: Check whether files came from email, upload, or a forwarded copy

The completion signal is that revisions remain traceable. Do not close the checkpoint by using amount alone as proof of duplication; that shortcut removes context needed later.

Checkpoint 3: Distinguish exact duplicates from corrected invoices

The completion signal is that the final decision is documented. Do not close the checkpoint by ignoring revised invoices with the same number; that shortcut removes context needed later.

Checkpoint 4: Keep an audit note explaining the decision

The completion signal is that the comparison uses several fields. Do not close the checkpoint by deleting the first match automatically; that shortcut removes context needed later.

Article-specific walkthrough: How to Detect and Handle Duplicate Invoices