# Finish connecting a freshbooks business

> POST /connections/freshbooks/oauth/connect

Source: https://docs.trykintsugi.com/reference/2026-07-21/finish-connecting-a-freshbooks-business

POST /connections/freshbooks/oauth/connect

Finish connecting a freshbooks business

Create the connection for the business chosen from the businesses list. Returns 400 if the selection has expired, is not this organization's, or `accountId` is not part of it. A multi-org credential must send an `Organization-Id`, `Connection-Id` or `Entity-Id` selector, or gets a 400.

Category: Connections

Request body:
selectionKey (string, required) - Key returned by the OAuth callback.
accountId (string, required) - `accountId` of the business chosen from the businesses list.

Response fields:
success (boolean, required) - Whether the connection was created.
message (string) - Human-readable outcome.

Response statuses: 200, 400, 401, 403, 404, 422

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