For several business events, you activate the business event:
In the Business events catalog in D365 F&SCM. This, for example, applies to endpoints of type 'HTTP' or 'Azure Event Grid'.
From the endpoint. This, for example, applies to endpoints of type 'Microsoft Power Automate' or 'Dataverse'.
For more information, refer to:
Manage business event endpoints. The tutorials, as referred to in this topic, give more detailed information.