How to Process a Void on NMI

A Void is a transaction that will cancel an unsettled sale, authorization, or captured authorization. Voids can only be performed before settlement; if the given transaction has been settled then a Refund must be performed. Voids on NMI are always for the full amount of the transaction.

1. Login to NMI. 

2. Click Credit Cards in the left panel menu. 

3. Select the transaction type Void.

4. Enter the transaction ID you wish to void.

5. Click on Void, this will cancel the transaction

Transactions can also be voided from the Transaction Details page:

1. Login to NMI. 
2. Select Transaction reports in the left panel menu. 
3. Enter the search criteria desired. 
4. Click Submit. 
5. Click the magnifying glass to the left of the batch the transaction is in. 
6. Click view these transactions. 
7. Click on the transaction ID you wish to void. 
8. Click Void. 

Once voided successfully, the merchant will be displayed with the Transaction Successfully Cancelled page where they can print or email receipt.