You should do so as soon as it is convenient. This will ensure that you do not miss out on any opportunities that may arise when insurers make their contract offers. When you sign up on Health Connective, you create an updated professional profile which insurers will use to evaluate your suitability for inclusion onto their panels. To ensure that the information that you provide is accurate, you may be requested to provide supporting documents e.g. Practicing Certificate, Specialist Accreditation and Registration Certificates. Do have them on hand when you sign up.