Hi @MissDowney, welcome to the seller community! 👋🏻

Are you looking set up a discount for your Online Store? If so, I think the best fit for you would be to create a promo code. For step-by-steps on how to set this up, have a look here: Create and Manage Promo Codes for the Online Store.

As you set up your promo code, you'll see the option to choose a quantity as well as a specific date range for availability. Once you've saved the code, your customers can apply it on the Checkout screen when they place an order in your Online Store.

Hope this helps get you where you need to be. Please let me know if you have any further questions. 🙂