Test Scenarios

Make sure you have tested all scenarios before going live:


Important to Consider:

  • How your app handles negative flows

  • Your customer's experience should a negative flow occur:

    • Logic to communicate error messages

    • Customise how your app responds

  • How to maintain application consistency

It is advised to generate:

  • Successful

  • Declines

  • Errors

If you need to familiarise yourself with any of our key terms, see Key Terms.



Common Errors

Code Error Description Possible Reason Resolution
403 Sorry, but we were unable to authenticate your request. Please check your details and try again.

The Incorrect:

  • API Token

  • API Secret or

  • endpoint

    has been sent.

Check you have the correct environment (live or sandbox) for your:

  • API Token

  • API Secret

86 Sorry, this payment has been stopped as it is a duplicate transaction.

yourPaymentReference has already been used.

This value should be unique in order to protect your customers against duplicate transactions.

Check you are providing a unique yourPaymentReference.

Your provided consumer reference is incorrect, please check your details and try again.

The incorrect yourConsumerReference has been used when making a token payment.

yourConsumerReference must match the original reference when the token was initially created.


The purchase cannot be completed at this time. For additional information please contact your card issuer at 0345 266 8634

"Message": "Unable to process transaction. Too many challenge attempts".

The card issuer has declined this transaction. Please retry, or use a different card.
70 Sorry, but it looks like the card token specified is not valid. Please check your details and try again. The cardToken and yourConsumerReference are incorrect. Check the cardToken and yourConsumerReference are valid.


Helping Us...

Before you contact our support teams, make sure you have captured the following:

  • The judoId.

  • The sandbox API Token and Secret.

  • The receiptId of the transaction.

    • This is Judopay's unique reference for the transaction.

  • The specific error code(s) returned.

    • For example: 154 | 77 | 175 | 182

  • yourPaymentReference

    • This is your unique reference for the transaction.

  • Time-stamp when the issue occurred.

  • Any screen shots showing the error.

These will help us investigate your issue.