Fitbit Developers oversee the SDK and API forums. We're here to answer questions about Fitbit developer tools, assist with projects, and make sure your voice is heard by the development team.
OAuth 2.0 access tokens and refresh tokens from Fitbit may be up to 1,024 bytes (1,024 character length).
If your application currently does not accommodate strings of this size for tokens, please contact private support to discuss a timeline for updating your application.