When creating an application group, you have the option to make the group available to all customers (public group) or make the group available to a specific customer (private group). If you choose to make the group private, be sure to click Save & Reload. When you click Save & Reload, the group is assigned to the customer and all of the customer's private applications and resources are available for inclusion. To modify this assignment, you first deprovision the Citrix service for the customer through the Customer Services page. Then, you can modify the application group to assign it to a different customer or make the group public. After you modify the application group, you can reprovision the Citrix service for the customer.
When you assign an application group to a specific customer, you can include the group only in other application groups that are assigned to the same customer.