Context

When processing transactions, there may be instances where you need to cancel a transaction. However, once a transaction has been settled, it cannot be cancelled through the system.

Answer

Once an ACH has been processed, meaning the file has been picked up by the bank, it cannot be cancelled. To see if a transaction can be cancelled, you can check the status, and use the dedicated endpoint.

To cancel an eligible transaction:

1. Use the Cancellation API Endpoint

2. The system will automatically check if the transaction is eligible for cancellation

3. If the transaction can be cancelled, the system will process the cancellation

4. If the transaction cannot be cancelled (e.g., it has already settled), the system will return a notification indicating the transaction is not eligible for cancellation

For detailed technical information about transaction cancellation, please refer to our Transaction Management documentation.