Testing a Custom Line Item To test a custom line item, select a store to use for testing the result of the formula. Type a date, or click to select a date from the calendar. Click Test to run the custom line item and display the result in the ‘Result’ text box. To test a custom line item: 1. From the Build Custom Line Item screen, click Test. 2. Click Yes to save the custom line item. 3. Select a store with valid data. 4. Type a date or click to select a date from the calendar. 5. Click Test. The result displays to the right in read-only format. 6. Click Done to return to the Build Custom Line Item Formula screen.