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# Customers must buy in multiples

### How to Set Up a Limit for Purchasing Products in Multiples

This guide will walk you through the steps to create a limit that ensures customers purchase a product in specific multiples. For instance, you may want customers to buy sample packs in denominations such as 5, 10, 15, or 20 to align with your inventory management strategy.

### Steps to Create a Multiple Purchase Limit

1. **Create a New Limit**
* **Limit Type**: Select **Product**.
* **Limit Name**: Assign a unique and descriptive name to the limit so you can easily identify its purpose later. For this example, we’ll use **"Multiples"**.
2. **Set Activation Details**
* **Activation Dates**: Leave the default settings to start the limit today. You can adjust the date range if needed for future or temporary campaigns.
* **Enforce on the storefront:** keep it on.
3. **Define Your Audience**
* **Audience Type**: Set to **Everyone** if the rule applies to all customers. If you want to target specific groups, such as wholesale customers, adjust this setting accordingly. 
* **Tags Exclusion**: Leave blank unless you need to exclude certain customer groups or products based on tags.
![](https://storage.crisp.chat/users/helpdesk/website/4dd3899948d8e000/monosnap-molsoft-shawn-dev-sto_1oewf6e.png)
4. **Target the Right Products** 
* **Items to Target**: Select the product(s) you want this rule to apply to. 
5. **Set the Multiple Purchase Rule**
* **Set Limits**: Choose **By Quantity**.
* **Multiple of Product Quantity**: Enter the multiple value (e.g., 5) that customers must adhere to when purchasing.
![](https://storage.crisp.chat/users/helpdesk/website/4dd3899948d8e000/monosnap-molsoft-shawn-dev-sto_ahsmg.png)
6. **Customize the Error Message** *(Optional)* 
* **Text for multiple not respected**: Adjust the message that appears if a customer doesn’t meet the multiple requirement. For example, you might use:
        *"Please select a quantity that is a multiple of 5, such as 10 or 15."*
![](https://storage.crisp.chat/users/helpdesk/website/4dd3899948d8e000/monosnap-molsoft-shawn-dev-sto_eq8063.png)
7. **Save the Limit**
    Once all fields are completed, click **Save** to activate your new limit.
![](https://storage.crisp.chat/users/helpdesk/website/4dd3899948d8e000/monosnap-flow-limit-product-mo_6oih27.png)
### Example Use Case

Imagine you sell a sample pack of snacks, and you’ve configured your inventory to handle orders in multiples of 5. By setting this limit, customers can only check out if they purchase quantities like 5, 10, 15, or 20. This ensures smoother inventory management and aligns customer purchases with your operational goals.

### Tips for Optimizing Limits

* **Testing**: After setting the limit, test it in your store to ensure it works as intended.
* **Communicate Clearly**: Use the custom error message to explain the rule to customers in simple terms, minimizing confusion.
* **Adjust as Needed**: If your inventory or audience changes, you can easily edit the limit settings at any time.

By following these steps, you can efficiently implement a rule for purchasing in multiples, ensuring better inventory control and a seamless customer experience.