Update the client and PayID name of a Receivable Contact.

Supply the desired client_id of a client registered via the Clients API, and a payid_name that matches the client's legal name or one of its business names. Zepto assigns the Contact's float account and PayID to new client and updates the name payers see in PayID and Confirmation of Payee (CoP) resolutions.

A Contact's client can only be reassigned once. Only the PayID name can be updated multiple times if required.

The update is processed asynchronously. The new names appear shortly after the request is accepted.