How to Set Minimum Quantity for Configurable Products in Magento 2

Setting a minimum quantity for a configurable product in Magento 2 is essential for managing inventory effectively and encouraging bulk purchases. This article will guide you through the steps to configure this setting using both individual product settings and global rules. By implementing these configurations, you can enhance stock management and create a better shopping experience for your customers.

Setting Minimum Quantity for Child Products

Since configurable products consist of simple products or child products, you need to set the minimum quantity for each child product individually. Here's how you can set this up:

Log in to the Admin Panel by accessing your Magento 2 admin URL and logging in with your credentials. Navigate to the Products section by going to Catalog > Products in the left sidebar. Edit a Configurable Product by finding the configurable product you want to edit and clicking on it to open the product edit page. Set the Minimum Quantity by scrolling down to the Product Details section and expanding the Advanced Inventory section. Here, you will find the Minimum Qty Allowed in Shopping Cart field. Set your desired minimum quantity here. Save the Changes by clicking the Save button to apply the changes.

Configure Global Minimum Quantity

Alternatively, you can set a global minimum quantity for all configurable products:

Navigate to the Global Minimum Quantity Settings by going to Stores > Configuration > Catalog > Inventory. Set the Minimum Qty Allowed in Shopping Cart for the specific customer groups under the Product Stock Options section.

Test Your Configuration

After setting the minimum quantity, it's crucial to test it by adding the configurable product to the cart. Make sure customers cannot proceed unless the required minimum quantity is met. This testing ensures that your configurations work as intended and that customers can't circumvent the minimum purchase requirements.

Additional Considerations

Stock Management: Ensure that stock management is enabled for your products. This is essential for the minimum quantity to work correctly.

Customer Groups: If you want to set different minimum quantities based on customer groups, you may need to use a third-party extension since Magento's default functionality does not support this feature out of the box.

Testing: After making changes, test the product on the frontend to ensure that the minimum quantity restriction is working as expected.

Using Custom Code (Advanced Users Only)

If you require more advanced functionality or want to set minimum quantities programmatically, you can create a custom module or use an observer to modify the behavior of the cart. Here’s an example code snippet:

namespace VendorModuleObserver
class CheckMinimumQty implements ObserverInterface
{
public function execute(Observer $observer)
{
$item $observer->getEvent()->getQuoteItem;
$minimumQty 5; // Set your minimum quantity here
if ($item->getQty() $minimumQty) {
throw new MagentoFrameworkExceptionLocalizedException__('You must purchase at least 1 of this item.');
}
}
}

Conclusion

Setting a minimum quantity for configurable products in Magento 2 is straightforward through the admin panel. For more complex requirements, consider custom development or extensions. Always remember to test after making changes to ensure everything is functioning correctly.