When you create your partner under the company profiles they will not be notified of your action. However, if you then choose to select a certain buyer or supplier for your booking, they will be notified automatically that you have chosen them to play a role in your bookings. They may then be asked to sign up on Twill to perform certain actions. This will make sure the shipment goes smoothly and creates transparency for you in terms of seeing various deadlines, actions and statuses.