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What button in the Order Summary would you use to remove a credit card payment from an order without calling the payment gateway in order to reconcile with
your payment gateway?
Cancel.
Detailed answer: This button should only be used in a very specific scenario, such as balancing an order that hasbeen charged back by the customer and cannot EVER be used to refund an order. The cancel button should be turned off in Application Security > Groups > Permissions > TSorderBO > cancelPayment so users don't accidentally click Cancel when they should be using Refund.