Assign a new owner to a transaction banking account. If the new owner already exists within the organization, it's linked to the account. If not, a new entity is created and linked to the account. The previous account owner and all other customers linked to the account are deactivated.

This endpoint generates an Account owner changed event.

NOTE: This endpoint requires an account token - an access token encoded with an external account ID. Tokens can expire quickly, which can result in a 401 Unauthorized message.