You can modify any transaction that has not been processed by transaction processing or, in the case of payments, subscriber payment processing. Refunds cannot be modified in Customer Service, because they are placed in a suspended refund batch after being entered. Complaints can be modified even after the complaint is processed, but only the reason code can be changed.
To modify a transaction, double-click on it in the Transactions Summary window. You can then click Modify and change the values in the transaction fields. When you have made the changes, click OK. See Transactions for more information about the Transactions tab.