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The Auth API exchanges a long-lived refresh token for a short-lived bearer token that you include in requests to the Channel and Seller APIs. Refresh tokens are issued during onboarding.

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Documentation

For more information on authentication, see the following guides:

Authorization

Refresh tokens, access tokens, and Bearer headers for all SCX APIs.

Rate Limits

Per-endpoint quotas, X-RateLimit-* headers, and 429 handling.