# Activity categories > Learn how to add categories for activities in Caspen. Source: https://support.caspen.com/catalog/activities/activity-categories Documentation index: https://support.caspen.com/llms.txt ## How to add a category 1. Go to **Catalog** → **Activities** tab. 2. Click **Add category**.
3. Enter the details, then click **Create**.
--- ### Category field reference | Field | Description | | -------------- | --------------------------------------------------------------------------------------------------------------------- | | Name |

The category name shown in lists and menus.

Examples: Reports, Case Notes, Admin, Communications.

| | Calendar color | The color activities in this category use on the calendar. | | Description | Internal note about how this category is used. | --- ### How calendar colours work **How it works** - Activities inherit their category color in the calendar. - If you change a category’s color later, all activities in that category update to the new color. **Why it helps**\ Color coding makes it faster to scan lists and the calendar. Use distinct colors for each activity category (for example: Non-clinical tasks = yellow). **Example: set a category color**\ **Actions → Edit category → Calendar color → select yellow → Save.**
**Where you’ll see it** - **Activities list:** Activities in the **Non-clinical tasks** category show in yellow. - **Calendar:** Those activities appear in yellow on the calendar.
Activities list using the Non-clinical category color (yellow).

Activities list using the Non-clinical category color (yellow).

Calendar event using the Non-clinical category color (yellow).

Calendar event using the Non-clinical category color (yellow).

--- ## Edit an activity category 1. Go to **Catalog** → **Activities**. 2. Find the category, then click **Actions** → **Edit category**. 3. Update the **Name**, **Calendar color**, or **Description**, then click **Save**. --- ## Archive an activity category > **Info:** > > **Note:** You can only archive an empty category. Reassign or archive its activities first. 1. Go to **Catalog** → **Activities**. 2. Find the category, click **Actions** → **Archive category**. It is now removed from the Activities list.