Remember that each Groupon Deal has its own terms, conditions, policy, shelf life. To activate a Groupon promo code or Groupon offer, you must choose the product, service, deal or offer, then click “Buy”. Then enter the Groupon code carefully as it is in the “Promo” or “Gift Code” field and then click “Apply” to activate the discount. Remember that the discount does not apply to taxes, shipping, or other fees.