Enable push notification service in macOS Server
You enable push notification using the Server app.
When you enable push notifications, you need an Apple ID associated with your organization. Using a personal Apple ID isn’t recommended. You must have, or be ready to create, an Apple ID before you can turn on the service.
In the sidebar of the Server app
, select the server, select Profile Manager, then click Configure under Device communication push notification certificate.Enter the Apple ID and password.
If you don’t have an Apple ID for your organization, click the link to create one.
Click “Get certificate.”