# Setup Line Item Editor

Configure the properties of the fields used in the Line Item Editor. For each selected record from the Lookup Selector, define attributes such as price, discount rate, quantity, and more.

<figure><img src="/files/l0xnWuh0tl3Jb1naA0Q0" alt=""><figcaption></figcaption></figure>

<table><thead><tr><th></th><th width="621"></th></tr></thead><tbody><tr><td><strong>1</strong></td><td><a href="/pages/T6FELWs5DnZavvTyuzJ1"><strong>Line Item Field Configuration</strong><br></a>Select fields from the Line Item object to be used during editing, and configure their default values and attributes.</td></tr><tr><td><strong>2</strong></td><td><a href="/pages/QVe1AqDX3PfrjO9zWgHb"><strong>DataSource</strong><br></a>Use DataSource to display additional data beyond the Lookup object records. You can also utilize Apex Classes to handle complex logic or fetch data through external interfaces, enabling advanced data display in the Line Item Editor.</td></tr></tbody></table>


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