post https://{instance}-api.private.fin.ag/v3/{customerId}/BankingServices/Authorize#anything
Use the /Authorize endpoint to generate a new requestID (or OAuth 2.0 Authorize Token) that's valid for 30 minutes.
To access a previously connected account, call this endpoint in cached mode by setting MostRecentlyCached to TRUE and specifying an account using the LoginId.
A 200 response means that a session was successfully initiated and a valid requestId was issued.