When issuing a refund of a transaction in the Blackbaud Merchant Services Web Portal, we can select the amount to refund, up to the full amount of the original transaction.

For instructions on performing a refund in the BBMS Web Portal, please reference solution How to issue a refund in Blackbaud Merchant Services.

When entering an amount to refund, instead of entering the full amount of the transaction, enter only the amount that is needed to refund. Click Refund to complete the refund.