401, 403, 429 or 503: where to start with an API error
Separate authentication, permissions, rate limits and service availability before retrying.
HTTP / API / Troubleshooting
HTTP and API guides covering error handling, request retries, service interactions and the limits of particular solutions.
Trace an integration step by step: the request, the server response and the client's next action. Consider status codes, idempotency and the constraints on retrying requests.
Separate authentication, permissions, rate limits and service availability before retrying.