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The sandbox simulates the live payment gateway. The sandbox never processes an actual payment. We do not submit sandbox transactions to financial institutions for processing. The sandbox environment is completely separate from the live production environment, and it requires separate credentials. If you use your production credentials in the sandbox or visa versa, you get a 401 HTTP error.

The following test credit card numbers work only in the sandbox. If no expiration date is provided, use any expiration date after today’s date. If the card verification code is required and is not provided, use any 3-digit combination for Visa, Mastercard, Discover, Diners Club and JCB; use a 4-digit combination for American Express.

Review the tables below to find the payment transaction responses that you want to trigger. For example, to trigger an invalid amount response, pass the value -1 in the orderInformation.amountDetails.totalAmount request field. The triggered test responses below mostly depend on the value that you pass in the request field: orderInformation.amountDetails.totalAmount Also, please note the following when testing Payments transactions: For credit cards, the transaction decisions typically are: AUTHORIZED - Transaction accepted. Passed with a 201 HTTP response Code. DECLINE - Transaction declined. ERROR - Transaction failed. The response includes a ReasonCode. To obtain more information about an error, view the transaction’s details in the Merchant Interface. The value of the requestID field will vary. The number increments with each Authorize.net plus transaction (for all merchants).