Final answer:
Deactivate entitlements when a service agreement ends, a subscription is not renewed, terms are breached, services change, or to manage licenses and access.
Step-by-step explanation:
You should deactivate entitlements when a customer's subscription has ended or when a service agreement or contract is no longer active or valid. This can happen if a customer decides not to renew their service, the terms of the entitlement have been breached, or when your business no longer supports the entitlements due to a change in services or policy. It is also pertinent to deactivate entitlements when you are managing licenses or access within a business to ensure that only current and active users or customers have access to the services or products offered.