10409

API

Last updated: Apr 22nd, 11:49am

Returns from the following NVP/SOAP API calls:

  • CreateBillingAgreement
  • DoExpressCheckoutPayment
  • GetBillingAgreementCustomerDetails
  • GetExpressCheckoutDetails
  • SetExpressCheckout

Cause

  • The Express Checkout token was issued for another merchant account: The token provided in the API call does not belong to the merchant account making the request.
  • Invalid token: The token provided in the API call is not valid. This could be due to a typo, an expired token, or a token that does not exist.
  • Token already used: The token has already been used for a previous transaction. PayPal tokens are single-use.
  • Incorrect transaction ID: The transaction ID does not match any existing transactions or is incorrect.

Impact

The payment process is halted, preventing the customer from finalizing their purchase. This can lead to a poor customer experience and potentially lost sales if the issue is not resolved promptly.

Resolution

  • Check merchant account: Ensure that the token provided in the API call was issued for the merchant account making the request. Verify that you are using the correct merchant credentials.
  • Validate token: Ensure that the token provided in your API request is valid and not expired. Double-check for any typos or errors in the token. 
    1$DoExpressCheckoutPayment = [
    2  'TOKEN' => $token,
    3  'PAYERID' => $payerId,
    4  'PAYMENTREQUEST_0_AMT' => '100.00',
    5  'PAYMENTREQUEST_0_CURRENCYCODE' => 'USD'
    6];
    • Check token usage: Verify that the token has not already been used for a previous transaction. PayPal tokens are single-use.
    • Verify transaction ID: Ensure that the transaction ID provided in your API request matches an existing transaction and is correct. Double-check for any typos or errors in the transaction ID.
    • Review your code: Review your code to ensure that the token and transaction ID are not being changed or modified at any point before the API call.

    Upgrade

    The NVP/SOAP API integration method is deprecated. You can find more information about our latest integrations from the following resources:

    Additional resources

    ReferencePayPal.comPrivacyCookiesSupportLegalContact

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