# Setup Lookup Selector To register a line item, you first need to search for a lookup object, such as a product, select the desired record from the search results, and configure details like quantity to complete the registration. The lookup selector setup allows you to configure the layout of search results for lookup object queries.


1	Configure Lookup Fields Add fields (columns) to display in the search results of the lookup selector and configure their properties. Additionally, you can add virtual columns to display data retrieved from DataSources.
2	DataSource If you want to display additional data beyond the lookup object records, you can use DataSources to fetch and display data from other objects. By utilizing Apex Classes, you can also implement complex logic or fetch data through external interfaces and display it in the lookup selector.

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