Securing Connection in Day Two

Once you create the registration, you can use the credentials for this new registration to add additional Direct Routing services to your customer. A new secret should be created for each new service. This can be performed by either entering the registration details directly in the Onboarding wizard (performed by Service Provider) or by triggering the Invitation wizard through an email link sent to your M365 Admin account (see Secure Connection using Existing Registration with Email Link).