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# How to limit how many products to apply discount on - Custom Discounts

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This guide explains how to use the **'Discount limits'** feature in the Custom Discount Builder to control the maximum number of products that can receive a discount in a single order.

### Getting Started

1. In the Kite app, start a new promotion using the **Custom Discount Builder**.
2. Set up your basic rules, such as eligibility criteria and the discount value (e.g., 10% off).
3. In the campaign setup, locate the section labeled **'Discount limits'**.
*Note: If you leave the limit field blank or set it to `0`, it signifies that there is no limit, and the discount will apply to all eligible products in the cart.*

### Understanding the Three Types of Limits

You can set a limit based on three different criteria.

#### 1. Limit by 'Total Discountable Products'

* **What it does:** Sets an overall cap on the total number of items that can be discounted in the cart, regardless of what the products are.
* **Example:** If you set the limit to `3` and a customer adds 5 eligible products to their cart, only the 3 least expensive items will receive the discount.

#### 2. Limit by 'Same Product'

* **What it does:** Restricts how many units of a single, identical product can receive the discount.
* **Example:** If you set the limit to `1` and a customer adds 2 units of the *same* T-shirt to their cart, only one of those T-shirts will be discounted.

#### 3. Limit by 'Different Products'

* **What it does:** Restricts the number of unique product lines (i.e., different types of products) that can be discounted.
* **Example:** If you set the limit to `2` and a customer adds a T-shirt, a hat, and a scarf to their cart, only the 2 least expensive unique products will receive the discount.

After choosing your limit type and setting the number, remember to **Save** your campaign.