Paypal rest api

Question

I have integrated PayPal REST API with PayPal SDK. It's working fine on sandbox when we are using sandbox credentials but when using live PayPal credentials, the save card functionality on PayPal (using REST API) is working fine, but when we try to make payments using the card id of PayPal (generated by PayPal like CARD-8K0630766A878805HYRGHBCD), We are facing an error like;

    Exception: Got Http response code 401 when accessing https://api.paypal.com/v1/payments/payment. Retried 0 times.
    {
     "name":"UNAUTHORIZED_PAYMENT",
     "message":"Unauthorized payment",
     "information_link":"https://developer.paypal.com/webapps/developer/docs/api/#UNAUTHORIZED_PAYMENT",
     "debug_id":"3424fdf3dac86"
   }

We have done lot of R&D but could not get the issue.

Please let me know what we are missing or the mistake from our end so that the issue is resolved as soon as possible.

Answer 1

Since you have an authorize failed, have you ever enable your live Credentials as it's not enabled by default.