Notification Scope

The value of the
notificationScope.scope
field determines which organizations receive the notification. This field can take any of these values:
SELF
Subscribes to event notifications for only the organization requesting the webhook subscription.
DESCENDENTS
Subscribes to event notifications for all child organizations of the requesting organization.
CUSTOM
Subscribes to event notifications for organizations listed in the
notificationScope.scopeData
array. Organizations must be separated by commas.