How to add or remove APS applications for one particular subscription?
Navigate to Subscriptions > example.com > Account > Customize:
Select tab Applications;
Make sure that Provide only applications that I select is enabled, otherwise customer will have access to all applications;
Modify the applications list to consist only of required applications:
Click on Update & Lock to apply changes.
Note: Locked subscriptions will not be automatically synced with the service plan.
Note: For more information refer to the Administrator's Guide.