Mint a one-time URL where a person connects their own LinkedIn account on a page Swarmhit serves, so your product never handles their LinkedIn password. Send them to `url`; they sign in, clear any verification step LinkedIn raises, and are redirected back to your `redirectUrl`. The sender lands in the effective workspace (the one named by the X-Swarmhit-Workspace header, if set) and consumes a seat from its allocation. The seat is checked when the link is created, so a full workspace fails here rather than at the end of the person's sign-in. The page carries your organization's name and picture by default; both can be overridden, and a default return URL set, in your organization settings — so `redirectUrl` only has to be sent when a particular link should land somewhere else. With `accountId` the link REPAIRS that sender instead of adding one: it keeps its id, its campaigns and its seat, and no seat is consumed. You learn the outcome three ways, and can use any of them: the redirect back carries `?hosted_link_id=&status=connected|failed|expired|cancelled &account_id=&external_id=`; the account.connected / account.connection_failed webhooks carry `hostedLinkId` and `externalId`; and GET /accounts/hosted-link/{id} returns the current state. `url` is returned once, here — the token inside it is stored only as a hash and cannot be read back.