> ## Documentation Index
> Fetch the complete documentation index at: https://docs.firstresonance.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Manage units of measure

> Add and remove the units of measure available for inventory quantities in ION.

Units of measure are the quantity labels available when tracking inventory (for example, `each`, `kg`, `m`).

## Add a unit of measure

1. In ION, go to **Settings > Supply Chain > Inventory**.
2. In the **Units of measure** field, type the unit you want to add.
3. Press **Enter** or click **Add**.

## Remove a unit of measure

1. In ION, go to **Settings > Supply Chain > Inventory**.
2. In the units list, click **X** next to the unit you want to remove.