Click on the Manage Parts icon on the left menu, then click the Add New Part button.
It will give you areas to fill:
Part Number - Add your unique part number (it will help you find it later).
Description - Your description for the part (this doesn't need to be unique).
MFG - Add any manufacturing information that you would like.
Cost - Your Part Cost. The system will automatically update your retail bill out price based on your parts mark up.
Category - Select any Category to help you locate it later.
Product Line - Select any Product Line that is already created (this is optional).