Studios often have sales and allow customers to get the discount more than once but no more than a specific number. When creating a discount, you have the option to set a "Discounted orders per customer" which limits the number of orders (or carts) a customer can apply the discount to but not the number of items that can be added to the cart.
You have the option to only allow a certain number of items within a single cart to be discounted. As an example, your studio wants to make sure that a customer only gets one 3-pack discounted when they have multiple 3-packs added to the cart.
If you are looking to create a discount like the option above, first create your discount in Products > Discounts. Once completed, contact Mariana Tek at support@marianatek.com and our support team will finish the configuration.