---
title: "Customer Credit Notes"
slug: "customer-credit-notes-1"
description: "Learn about Customer Credit Notes in Marlin GTX trusted automotive software by Megabus."
updated: 2026-03-25T04:29:03Z
published: 2026-03-25T04:29:03Z
canonical: "help.megabus.com.au/customer-credit-notes-1"
---
> ## Documentation Index
> Fetch the complete documentation index at: https://help.megabus.com.au/llms.txt
> Use this file to discover all available pages before exploring further.
# Customer Credit Notes
{{variable.GTX Bold}} enables users to manage customer credits and invoice reversals using credit notes.
Users can [manually create new credit notes](/gtx/docs/customer-credit-notes#adding-credit-notes) to record credits or adjustments, or generate one by [reversing an existing invoice](/gtx/docs/customer-credit-notes#reversing-invoices).
Credit notes can be processed using the Invoices module, accessed by selecting **Main > Data Entry > Invoices** from the menu bar.
**In the Invoice Entry window:**
* Click the **Credit Note** button on the left
* The **Enter Credit Note** screen will open
* The background colour will change to **pink**
## Adding Credit Notes
#### Main > Data Entry > Invoices > Credit Note
**To create new credit note from scratch:**
* Select yourself as the **Salesperson**
* Enter the required products and amounts using the **Line Details** list below
* Click **Finalise**
**If reversing a transaction:** Make sure to select the payment types and amounts used on the original invoice
## Reversing Invoices
#### Main > Data Entry > Invoices > Credit Notes
The details from **previous transactions** can be automatically added to credit notes when reversals are required.
**To select the original invoice:**
* Select the **Customer**
* Click on the **Invoice Reference** picker
The **Select Invoice** pop-up will open.
**In the pop-up:**
* Select the **original invoice** at the top
* Check the **Transaction Details** below
* Ensure all **checkboxes** for the required items are ticked
* Click **Select**
The details of the selected invoice will be added to the Credit Note Entry window, which can then be **finalised** as usual.
:::(Warning) (Tip)
To insert the full credit note amount in a payment type field, click the field and press **Enter**.
:::
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