Start a freshbooks oauth connect
Return the FreshBooks consent URL for the resolved organization. A multi-org credential must send an Organization-Id, Connection-Id or Entity-Id selector, or gets a 400. Call this from a browser with credentials (cookies) included: the callback that finishes the connect is bound to the session cookie this response sets, so it only completes for the same browser.
Authorization
Headers
Release date, as YYYY-MM-DD. Defaults to 2026-07-21.
Target organization id (Organization-Id selector).
Target connection id; resolves to its organization.
Platform entity id; resolves to a connection's organization.
Optional source to disambiguate an Entity-Id.
Body
Import floor captured at connect time, as YYYY-MM-DD. null imports all available history.
Response
Consent URL to redirect the user to.
Successful Response
The request was invalid.
Authentication failed or was missing.
The credential is not permitted for this request.
The requested resource was not found.
The request conflicts with existing state.
The request failed validation.