Redirects the end-user's browser straight to Airbnb's OAuth consent
screen without showing any Host Tools UI. After the owner consents,
Host Tools auto-imports every net-new listing from that Airbnb account
into the listing group associated with ownerImportToken, then
redirects the owner to the partner's redirect URL with result query
parameters appended.

While the listings import, the owner waits on a Host Tools page that
counts them ("120 of 349 listings"). A large account takes several
minutes. The page sends the owner to your redirect when the import
finishes. If the owner closes it, the import still finishes, but the
redirect doesn't happen: use the listingGroup.changed webhook to see
the listings join the group.

This is a browser redirect URL, not a JSON endpoint. Send the owner's
browser to this URL — do not call it with fetch or axios.

Typical integration flow:

1. Call POST /api/listingGroups/{listingGroupID}/generateOwnerImportToken
   to obtain an ownerImportToken for the target listing group.
2. Construct the auto-connect URL with the token, your allowlisted redirect
   URL, and the desired scope.
3. Redirect your end-user's browser to that URL.
4. After Airbnb consent and the import, the owner is redirected to your
   redirect URL. Read owner-import-status to determine success or
   failure.

On success, the partner redirect receives:
?owner-import-status=success&imported=<n>&accountID=<id>
plus &failed=<n> when some listings couldn't be imported.

On failure, the partner redirect receives:
?owner-import-status=error&owner-import-error=<code>
where <code> is one of invalid-link, invalid-scope, oauth-denied,
oauth-failed, import-failed.

Listings that were already imported on this Host Tools user are skipped —
they are not re-imported or moved between groups. Only truly-new listings
are added to the group.

If the redirect parameter is missing or its domain is not allowlisted,
the endpoint returns a 400 ErrorModel response — this is the only path
that doesn't end in a 302, because there's no safe partner URL to bounce
the error to.

Only Airbnb supports headless auto-connect. VRBO, Booking.com, and Houfy
still use the standard owner-import flow.

If you embed the owner-import page in an iframe, use this endpoint for
Airbnb: Airbnb's sign-in pages can't load inside an iframe. See
Embedding Owner Import.