Global webhooks notify you about events at the instance level.
You can use global webhooks to automatically monitor, respond to, or enforce rules for user and organization management on your instance:
UserEvent: fires when someone creates or deletes a user account
OrganizationEvent: fires when someone creates or deletes an organization
You can configure global webhooks in the Admin center. For more information, see "Managing global webhooks."
You can also use the GitHub Enterprise API to manage global webhooks. For more information, see "Global webhooks" in the GitHub Developer documentation.