Retail Items will need to be tied to fees in your fee schedule if you have already been using the ledger to sell products to patients in your office.
Navigate to your fee schedule with retail items in the References ability. Search your pre-existing codes to locate an item that is sold in the office. Select the Consumed Items tab and click the green plus. Select the Retail Item from the following screen then change the association drop down from Consumed to Sold. Adjust the Quantity if needed. Complete this procedure on all existing Retail Items in your fee schedule.