The "Amount" field is the amount that will be stored on the gift card and is also the selling price. The "Scan Barcode / Unique Gift Card Id" field is for you to enter a unique ID for the specific gift card so SimpleConsign can track its balance. Many gift cards/certificates look like checks, you could enter the gift certificate(check) number in this field. If your gift cards do not have a unique ID and/or you do not want SimpleConsign to track gift card balances, you can check the "No barcode" checkbox.