Learn how to create and assign category tags or labels in Outlook on the web.

Color categories allow you to easily identify and group associated items in Microsoft Outlook. Assign a color category to a group of interrelated items—such as notes, contacts, appointments, and email messages—so that you can quickly track and organize them.

To assign a category to an email, right-click the message, choose Categorize, then pick a category. The first time you use a category, Outlook asks if you want to rename it.

As you switch from G Suite to Microsoft 365, learn how to organize your inbox in Outlook on the web.

Organize your inbox with Archive, Sweep, and other tools in Outlook on the web. Clean up your inbox and keep your email organized with automatic filtering and sorting, and by using tools on the command bar like Sweep, Archive, and Move to. You can also organize your email using inbox rules.

The navigation pane lets you filter items by category when you view calendar events, contacts, tasks, and notes. At the bottom of the navigation pane, click Calendar, Contacts, Tasks, or Notes.

Sort messages in Outlook by grouping them according to criteria such as date, sender, subject, attachments, or flags.

Contacts that were in a particular folder (s) are stamped with categories that share the same name as the folder. These can be accessed by clicking on the category in the left navigation pane.

Focused Inbox sorts your email into two tabs: Focused for messages you’re most likely to read, and Other for the rest. To turn on Focused Inbox: Select Settings > Focused Inbox. To move a message from one tab to the other: Select the message you want to move, on the toolbar select Move to > Move to... or Always move to...

Use categories to help you group similar tasks together. Use good judgment when sending messages. Follow the do's and don'ts of writing great messages. Review your calendar and tasks regularly.