Manual adjustment of authorizations
You may choose to minimize mismatched settlements by reversing authorizations for order modifications and invoices.
Depending on the frequency of total order modifications, this may save transaction fees. Tax and charge adjustment during invoicing can also be a candidate for reversal and reauthorization, as these occur right before settlement.
To accomplish manual adjustment, an open authorization reversal request can be created using the recordExternalCharges API; a reauthorization should not be created at this time. With the reversal created, the payment agents will create the reauthorization automatically for the correct amount.