Before you create a policy, decide which group of users or devices you want it to affect. You may want to create a policy based on user job function, connection type, client device, or geographic location. Alternatively, you can use the same criteria that you use for Windows Active Directory group policies.
If you already created a policy that applies to a group, consider editing the policy and configuring the appropriate settings instead of creating another policy. Avoid creating a new policy solely to enable a specific setting or to exclude the policy from applying to certain users.