- Select any item (item: An item is the basic element that holds information in Outlook (similar to a file in other programs). Items include e-mail messages, appointments, contacts, tasks, journal entries, notes, posted items, and documents.).
- On the Edit menu, click Categories.
- Click Master Category List.
- Do either of the following:
Add a new category
In the New category box, type a name for the category, and then click Add.
Delete a category
Click the category you want to delete. (To select several categories, press and hold down CTRL and click the categories.) Click Delete.
- Click OK twice.
Note If you delete a category from the Master Category List (Master Category List: The list of categories that you can use to group items or to find items. This list contains general categories such as Business, Personal, and Phone Calls. You can add categories to and delete categories from this list.), the category is not deleted from items you've already assigned to that category. For example, if you assign items to the Business category and later delete the Business category from the Master Category List, you may still have items assigned to the Business category. Items assigned to deleted categories keep their category assignments so you can find, sort, filter, or group them by those deleted categories.