Users page: the "None (Not in a Group)" filter does not apply to devices

Question 

When I'm searching for users on the Users page and apply the Groups > None (Not in a Group) filter, I see a list of people who don't belong to any group. But I know that some of those users have a device that is a member of a group. Why are the users showing up in the "Not in a Group" list when their devices are group members?

Environment

All versions of xMatters

Answer

The None (Not in a Group) filter only applies to users, and not their devices. A user doesn't automatically become a group member if their device is added to a group. 

When creating groups, we recommend that you add the user as a group member and not their device unless absolutely necessary. If you add the device as a group member, any personalized settings the user has configured (such as priority levels, time frames, notification delays, and preferred notification order) are ignored.

Click here to learn more about managing your groups.