# How to reverse an unpaid duplicate supplier invoice

KB574.htm

## Overview

If a Supplier invoice has accidentally been entered twice, you will need to reverse the duplicate invoice’s transactions so that there are no consequences to your financials.

Depending on your organisation’s quality assurance and record-keeping processes, if the duplicate invoice has not been paid, you can do this by safely deleting it from Accentis Enterprise.

Otherwise, the duplicate invoice can be reversed by creating another, negative invoice.

## Creating a negative Supplier invoice

1. Navigate to the duplicate supplier invoice and select Duplicate.
2. Change the values in the Amount and Quantity fields to their negative equivalent.
   1. This should mark the invoice as a * Credit * invoice.
3. Be sure to include comments and a reference to the original Invoice #, and select Update.

1. Select Create Payment for this Supplier Invoice from the Action menu

1. Set the Payment Amount to 0.00 and add a new line referencing the duplicate Invoice #.
2. Make sure the payment Total displays as 0.00 and select Update.

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Last edit: 12/05/2026