How to Add Custom Validations Before Order Placement in Magento 2?

How to Add Custom Validations Before Order Placement in Magento 2

Hello Magento Friends,

You might need to validate a customer order in different scenarios and there’s no other way other than inserting custom validations and allowing your customer to complete their order on your Magento 2 store. It could be due to the fact that it’s a required field to make sure we have specific conditions, it could be a required field to make sure we have the required data, or it could be a required field that will help us maintain operational efficiency.

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When you customize the validation process to your own specific needs, you will not only benefit from a much smoother and more intuitive user experience, but you will also ensure the integrity of your store’s data.

In this blog, we will guide you through how you can add custom validations in front of order placement in Magento 2 with the help of step by step approach. From the need to enforce age restrictions, validate shipping addresses, or verify payment information, this guide gives you the knowledge to increase functionality of your e-commerce platform.

Let’s find out How to Add Custom Validations Before Order Placement in Magento 2.

Steps to Add Custom Validations Before Order Placement in Magento 2:

Step 1: Create a file in the path given below.  

{{magento_root}}\app\code\Vendor\Extension\view\frontend\layout\checkout_index_index.xml

Then add the code as follows

<?xml version="1.0"?>
<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" layout="1column" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
    <body>
        <referenceBlock name="checkout.root">
                <arguments>
                    <argument name="jsLayout" xsi:type="array">
                        <item name="components" xsi:type="array">
                            <item name="checkout" xsi:type="array">
                                <item name="children" xsi:type="array">
                                    <item name="steps" xsi:type="array">
                                        <item name="children" xsi:type="array">
                                            <item name="billing-step" xsi:type="array">
                                                <item name="children" xsi:type="array">
                                                    <item name="payment" xsi:type="array">
                                                        <item name="children" xsi:type="array">
                                                            <item name="additional-payment-validators" xsi:type="array">
                                                                <item name="children" xsi:type="array">
                                                                    <!-- START validation Code. -->
                                                                    <item name="orderValidation" xsi:type="array">
                                                                        <item name="component" xsi:type="string">Vendor_Extension/js/view/validate</item>
                                                                    </item>
                                                                    <!-- END validation Code. -->
                                                                </item>
                                                            </item>
                                                        </item>
                                                    </item>
                                                </item>
                                            </item>
                                        </item>
                                    </item>
                                </item>
                            </item>
                        </item>
                    </argument>
                </arguments>
        </referenceBlock>
    </body>
</page>

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Step 2: Create a file in the path given below.

{{magento_root}}\app\code\Vendor\Extension\view\frontend\web\js\view\validate.js

Now add the code as given below

define(
    [
        'uiComponent',
        'Magento_Checkout/js/model/payment/additional-validators',
        'Vendor_Extension/js/model/validate'
    ],
    function (Component, additionalValidators, orderCustomValidation) {
        'use strict';
        additionalValidators.registerValidator(orderCustomValidation);

        return Component.extend({});
    }
);

Step 3: Create a file in the path given below.

{{magento_root}}\app\code\Vendor\Extension\view\frontend\web\js\model\validate.js

Then after add the below-mentioned code

define(
    [
        'jquery',
        'Magento_Ui/js/modal/modal',
        'mage/url',
        'mage/validation'
    ],
    function ($, modal, url) {
        'use strict';
        return {
            validate: function () {
               var order = false;                
                // return true if order success
                // return false if restrict order
                
                // Code for Order restrict here
                
                return order;
            }
        };
    }
);

Step 4: After that, run the below commands.

php bin/magento setup:upgrade	
php bin/magento setup:static-content:deploy -f
php bin/magento cache:flush

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Conclusion:

In this manner, you can easily add custom validations before your order placement in your Magento 2 store. By customizing this to your liking, you can ensure the quality of your orders and a better shopping experience for your customers.

Also, check other tutorials related to custom validation in Magento 2.

Share the tutorial for adding custom validation before order placement in Magento 2 with your friends, and stay updated for more such solutions from us.

Happy Coding!

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