In the API logs in the Dashboard, you can find a list with failed requests, grouped per error code. You can check the list of all the error codes in our documentation here.

Go to the Developers menu on the bottom left of the Dashboard, then click the API logs tab:

You will see the logs for the failed requests. This data is available for 5 days. To see the details for the API request, you can click the eye icon:

In the error log, you will see the error code , description of the error, and the parameter that caused the error.