Authorize.net: E00027 Duplicate Transaction Has Been Submitted

What This Means

The "Duplicate Transaction" message is sent when transactions for the same amount are sent a few minutes apart of one another.

‘E00027’ is returned in many cases where Authorize.net declines the payment.
In cases where form fields for validation are triggered, Authorize.Net will send you an email with details on which filter was triggered.

Check within your Authorize.Net web interface for specific declines and reports on specific filters that stopped the payment from going through at Reports >> Transaction Detail Reports or Search >> Suspicious/Unsettled transactions.

Suggested Next Steps

Check the customer's information in your payment gateway to determine if the payment simply needs to be updated or retried
Contact the customer to have them add a new payment method and add it to their Scheduled Order
Once a new payment method is added to the Scheduled Order, the Scheduled Order should be processed with the new payment method.

Adding A New Payment Method for Your Customer?

If you are adding a new payment method for your customer directly to your payment gateway (manually), ensure that you edit the failed Scheduled Order, add a new payment method, and copy the required billing information directly to their Scheduled Order including:

Gateway CustomerId
Gateway PaymentId
Billing Address
Payment Method Description (optional, but strongly suggested because it is used to display the payment method to your customer)

After Resolving The Issue

Once this issue is resolved, you should use the action to Restart Processing the Failed Scheduled Order.