Do not use any real card data in the sandbox environment. You should only use the following testing cards provided by EveryPay. Moreover, you should pass credit card numbers only in the appropriate field e.g card_number and not on any other fields like description, metadata, etc.
You can use the following card numbers to execute test transaction scenarios.
Success test cards
|Card Number||Card Type||HTTP Status||Outcome|
|4556940988073158||Visa||200||Successful Frictionless transaction|
|4908440000000003||Visa||200||Successful transaction with installments|
Failure test cards
Below you will find card numbers that return specific errors, so you can control the behavior of your application in similar cases.
|Card Number||HTTP Status||Failure Code||Failure Message|
|4916915111701144||402||40060||Successful payment, which in case of refund will fail|
Test your implementation!