---
title: "Reversing Transactions"
slug: "reversing-transactions"
description: "Learn about Reversing Transactions in Marlin GTX trusted automotive workshop software by Megabus."
updated: 2026-05-25T23:59:13Z
published: 2026-05-25T23:59:13Z
canonical: "help.megabus.com.au/reversing-transactions"
---

> ## 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.

# Reversing Transactions

****Marlin GTX**** enables reversing transactions to correct errors or undo completed processing.

This guide outlines how to perform each type of reversal, including:

- [Customer invoices](/gtx/docs/reversing#reversing-customer-invoices)
- [Payment receipts](/gtx/docs/reversing#reversing-customer-receipts)
- [Supplier payments](/gtx/docs/reversing#reversing-supplier-payments)
- [Delivery dockets](/gtx/docs/reversing#reversing-delivery-dockets)
- [Journal entries](/gtx/docs/reversing#reversing-journal-entries)
- [Bank reconciliations](/gtx/docs/reversing#reversing-bank-reconciliations)

Each process will open the relevant module, locate the original transaction and **create a reversal entry** to offset the original values.

## Reversing Customer Invoices

[Customer invoices](/gtx/docs/invoices) can be reversed by performing an opposite [credit note](/gtx/docs/customer-credit-notes-2#reversing-invoices).

**To reverse a customer invoice:**

- Open the **Invoices** module:
  - **Main > Data Entry > Invoices**
- Click **Credit Note** on the left
- Select the **Customer**
- Click on the **Invoice Reference** picker (far-right)

In the **Select Invoice** 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 **invoice details** will be added to the reverse window:

- **Confirm** the details
- Click **Finalise** at the top of the module

Tip

To insert the full credit note amount in a payment type field, click the field and press **Enter**.

## Reversing Customer Receipts

**To reverse a [customer receipt](/gtx/docs/receipts):**

- Open the **Receipts** module:
  - **Main > Data Entry > Receipts**
- Click **Reverse Receipt** on the left
- Select the **Customer**
- Click **Search by Receipt** below

In the **Select Receipt** pop-up:

- **Select** the receipt in the top section
  - Review **Allocations** and **Payment Methods** below
  - Click **Show All** (bottom right) to show closed transactions
- Click **Select**

The **receipt details** will be added to the reverse window:

- **Confirm** the details
- Click **Finalise** (top of module)

## Reversing Supplier Payments

**To reverse a [supplier payment](/gtx/docs/supplier-payments):**

- Open the **Payments** module:
  - **Main > Data Entry > Payments**
- Click **Reverse Payment** on the left
- Select the **Supplier**
- Click **Search by Payment** below

In the **Select Payment** pop-up:

- **Select** the payment in the top section
  - Review **Allocations** and **Payment Methods** below
  - Click **Show All** in the bottom right to show closed transactions
- Click **Select**

The **payment details** will be added to the reverse window:

- **Confirm** the details
  - Tick **Reverse Allocations Only** (top-right), if required
- Click **Finalise** at the top of the module

### Reversing Delivery Dockets

[Delivery dockets](http://Deliverydockets) can be removed from your system by invoicing them and then reversing them, using a **credit note**.

**To reverse a delivery docket:**

- First, [invoice the docket](/gtx/docs/delivery-dockets#invoicing-delivery-dockets), as usual:
  - Select **supplier**
  - Select or import **delivery docket**
  - Enter **details**, **reference number**, **amount** and **tax** (if required)
  - **Finalise** the invoice

- Then, **reverse the invoice** using a [credit note](/gtx/docs/supplier-credits):
  - Click **Credit Note** on the left
  - Select the **supplier**
  - Use the **Original Reference** picker to select the invoice
  - **Double-check** the details
  - **Finalise** the credit note

## Reversing Journal Entries

To reverse a journal entry, you will need to know the **journal reference number**.

**To locate the journal you want to reverse:**

- Open **Account Maintenance**:
  - **Main > Accounts > Manage Chart of Accounts**
- **Open** the relevant account
- Click on the **Transactions** tab at the top
- Locate the relevant transaction and note the **Our Ref** number
  - You can **ignore all leading zeroes**  

(e.g. for "**0000031**" you just need "**31**")

**To reverse a [journal entry](/gtx/docs/journals):**

- Open the **Journals** module:
  - **Main > Data Entry > Journals**
- Click **Reverse Journal** on the left
- Select the **Salesperson**
- Enter the **Reference Number** below
  - **See above** about how to locate
- Click **Load** below

The **journal details** will be added to the reverse window:

- **Confirm** the details
- Click **Finalise** at the top of the module

Note

**End of Day postings** cannot be reversed.

If you need to reverse an End of Day posting, please [contact the Megabus Support Team](https://www.megabus.com.au/support).

## Reversing Bank Reconciliations

**To reverse a [bank reconciliation](/gtx/docs/bank-reconciliation):**

- Open the **Cashbook** module:
  - **Main > Data Entry > Cashbook or Bank Reconciliation**
- Click **Reconciliation** on the left
  - **If there is an open reconciliation:** Void it (red X at top)
- Click on the **Cancel a Previous Reconciliation** button (blue arrow) at the top-right

In the **Previous Reconciliations** pop-up:

- Select the **Cash Account**
- **Select** the reconciliation
- Click **Cancel Reconciliation**
- **Confirm** the cancellation:
  - Click **Yes** in the pop-up that opens

Note

Only the **previous reconciliation** can be cancelled.