Link user with existing transaction
Associates a completed OCR/DI transaction (captured with API-key-only calls before login) with the authenticated user. Native API / mobile pattern only — not used with IdentityUserSession iframe flows or GenerateRegisterLink/GenerateLoginLink hosted URLs.
Authentication
ApiKeystring
Static API key issued to your tenant. Required on every request.
OR
AuthorizationBearer
End-user JWT from registration or login. Required for verification, signing, and user-scoped operations.
Request
This endpoint expects an object.
transactionId
getExtractedData
Response
Transaction linked to the authenticated user.
data
error_code
error_message

