Copy and paste the below to the script editor
ELIGIBLE_PRODUCT_IDs = [6579978469419,6579669958699,6579976798251,7209085796395,7187613057067]
FREE_GIFT_PRODUCT_ID = 7204031103019
DISCOUNT_CODE = "SURPRISE"
FREE_GIFT_PRODUCT_ID = 7204031103019
DISCOUNT_CODE = "SURPRISE"