How to Add or Remove Members from 365 Groups

Before you can add or remove members from a 365 group, you will need to be designated as an "owner" of the group. Once you're an owner, you can use your Outlook desktop client or Outlook from the web to edit members.

To edit members from the Outlook desktop client:

Locate the "Groups" option under your Inbox > right click > browse groups.

The browse dialogue box will open a list of available 365 groups. If you don't see your group listed under the "Suggested" tab, click the "All" tab and locate your group. Then click "View" on the group you want to edit.

From the View Group page, Click "Group Settings" on the ribbon. Then either choose "Add Members" to immediately go to the add screen or "Edit Group" to view the full properties of the group.

From either of these dialogue boxes, you can add / remove users or owners.