Sandbox mode

Marc Guay:

An alternative solution would be a way to view the confirmation page without actually having to make a payment, if that's possible or easier.

There are a couple of ways that you can test your form. One way is by processing a small credit on an organization card and then refunding the amount back to the card. Another option is to set Blackbaud Merchant Services to test mode and then processing a test card to make sure everything is functioning correctly. Please note that changing to test mode will affect everything else that is processed through Blackbaud Merchant Services. The linked article will give you more guidance on both options: https://kb.blackbaud.com/articles/Article/91876