Home > OpenCart – Mastercard Gateway > Managing Transactions > Void Transaction

OpenCart – Mastercard Gateway

Created date: 03-07-25   |   Updated date: 11-09-25   |   Plugin version: 1.3.4  |   API version: 100

Void Transaction

The Void Transaction feature lets you cancel payments for orders that have been authorized but not yet captured. This feature is specifically for orders set up with the Authorize payment action, meaning the payment was approved but not fully processed.

Steps to Void a Transaction

Open OpenCart Orders page by clicking on Sales and then Orders from the OpenCart Admin Panel
OpenCart Admin Panel → Sales → Orders

1. Locate the Order:

  •  Go to the Sales section in the OpenCart Admin Panel.
  • Click on Orders and find the order you want to process.
Click on View against the required order record
Orders → View

2. Open the Order:

  •  Click on the specific order to view its details.
Click the Void button.
Void

3. Locate Void Button:

  • Scroll down to find the Void button in the left corner.
Click on OK to cancel the payment authorization.
Voiding the transaction

4. Confirmation Popup:

  • When clicking the void button, you will see a popup to confirm the action.
  • Click the OK button.

By following these steps, you’ll successfully transition the transaction from Authorized to Cancelled, and no funds will be captured from the customer.

  • Voiding a transaction stops the payment process entirely, so the funds will not be captured from the customer.
  • This is only possible if the order hasn’t been captured yet. If the transaction has already been captured, you’ll need to follow the refund process.