Refunds and partial refunds can be done through API or through the Simplify dashboard. Our Refund API documentation describes how to create, list and find refunds, and provides examples. To refund a charge on the dashboard, click on the 'Payments' section on the menu bar at the top of the page and select the charge you wish to refund. The transaction details for the charge will display. Click 'Refund' in the top right corner of the display, enter the refund amount (up to the original amount of the transaction), and supply a refund reason if you wish to. Click the 'Make Refund' button.
How to issue a refund to your customer in Simplify Commerce