# Item Management

## How to Define Unit Conversion (Item Master)

| ### What to do:
| Select Start > Item Master. The Item Master mask is opened.
| Search for the item ART-1200 Ornamental Ring
| Select the Unit Conversions tab.
| To change to insert mode click .
| Select Stk in the Target Unit field.
| Enter 0.002 in the Factor field.
| Select kg in the Source Unit field.
| For information on how to change the unit and quantity for a BoM position, please refer to the topic "Change Unit and Quantity for a BOM Position" in the BoM Management documentation!