Set a unique validation error notice in Woocommerce checkout page

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Woocommerce checkout page shows individual error if the required fields are empty. Normally, if all fields are empty, all errors for those empty fields will be shown: - First name is a required field - Last name is a required field - Street address is a required field - Town / City is a required field and so on…

Is it possible to show only one error if all the required fields are empty? Like "ERROR: All fields are empty. Please fill in all required fields to place order." How to achieve this?

Checkout page

To set a unique validation error notice in Woocommerce checkout page you will use the following: (code is mainly from your last question and useful to the community. Just changed to the official function arguments code)

add_action( 'woocommerce_after_checkout_validation', 'checkout_validation_unique_error', 9999, 2 );
function checkout_validation_unique_error( $data, $errors ){
    // Check for any validation errors
    if( ! empty( $errors->get_error_codes() ) ) {

        // Remove all validation errors
        foreach( $errors->get_error_codes() as $code ) {
            $errors->remove( $code );

        // Add a unique custom one
        $errors->add( 'validation', 'Please fill in all required fields to place order.' );

Code goes in function.php file of your active child theme (active theme). Tested and works.

Related: Set a unique validation error notice in Woocommerce My Account Addresses and Account Details

Custom Validation in WooCommerce Checkout, It took me months to find this answer on how to show only one error message in checkout page. If you need to remove validation for some of WooCommerce checkout fields, let’s say email, phone or postcode, all you have to do is to remove validate parameter from a field. You can do it in woocommerce_checkout_fields filter hook, example: 1 2 3 4 5 6 7 8. add_filter( 'woocommerce_checkout_fields', 'misha_no_email_validation' ) ; function misha_no_email_validation ( $fields ){ unset( $fields['billing']['billing_email']['validate'] ) ; return $fields ; }

You would need to disable the current error checking and write custom javascript for the checkout page that would put all the errors in a single message.

There's no native WooCommerce functionality that would accomplish this.

To remove validation, go to your checkout.php template and remove the required attribute from the html fields.

Checkout this link on how to add HTML and javascript to the checkout page.

How to Validate WooCommerce Checkout Fields with Custom , Learn how to validate WooCommerce checkout fields with the built-in rules: phone number, Create your own custom validation rules: number, website, it is very important to keep this unique if you add multiple validation methods. You can also customize error notice, by changing the following code:. Then if the URL is not valid we will use the core WooCommerce function wc_add_notice to display the validation error: [Field label] is not a valid URL. Step 2 - Use the filter to add a new validation method to Flexible Checkout Fields

hHi, you can remove validation from checkout fields and add yours:

Here is the hook:

add_filter( 'woocommerce_default_address_fields' , 'filter_default_address_fields', 20, 1 );

for more, you can go to


WooCommerce Checkout Validation Plugin, WooCommerce Checkout Validation by Flexible Checkout Fields plugin. Szymon You'll see an error message as a result: Error: Invalid email  The main filter we will work today is woocommerce_checkout_fields. But if you’re looking how to skip the cart and implement a one page checkout for your WooCommerce store, this plugin should help you. Actually it allows you to create a custom checkout page in your store. Introduction to woocommerce_checkout_fields

Its normally show when you press the checkout button. but if you watch it when page load. then maybe it's come by woocommerce bugs. you should update woocommerce plugin. I hope this error would be gone when you will update the plugin.

But after that, if you are facing the same issue contact me. I will look at it.

thank you

Custom Validation Rules, To create new custom validators,. Go to Dashboard → WooCommerce → Checkout Form → Advanced Settings page. You can see a section Custom Validators  Teams. Q&A for Work. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information.

Customizing checkout fields using actions and filters , The billing and shipping fields for checkout pull from the countries class helps establish when a bit of code — called a function — runs in relation to a page load​. Next we need to validate the field when the checkout form is posted. Check if set, if its not set add an error. WooCommerce Codex - Checkout Field Notice. You can always edit the translation files. In this case, you would have to open the .pot file in a PO editor and create a new en_US translation file with the altered strings:

Checkout Field Editor, The Checkout Field Editor provides an interface to add, edit and remove fields shown on your WooCommerce checkout page. city, state, postcode) cannot have custom validation rules, e.g. Required fields are determined by It's possible to set a default value for a radio button checkout field by placing the following code  Select the “WooCommerce Multi-Step Checkout” plugin and click “Install”. Activate the plugin. OR…. Download the plugin from this page. Save the .zip file to a location on your computer. Open the WP admin panel, and click “Plugins” -> “Add new”. Click “upload”.. then browse to the .zip file downloaded from this page.

Custom Validation Rules, To create new custom validators, Validator Name: A unique name for the validation rule, which will be used internally to Error Message: The message to be displayed when the validation fails. ThemeHigh develops plugins to customize the product and checkout pages of a WooCommerce Online  Custom Validation Rules Custom validator feature can be used to define custom validation rules using RegEx which can be selected from 'Validations' drop-down when creating or editing checkout fields. To create new custom validators, Go to Dashboard → WooCommerce → Checkout Form → Advanced Settings page. You can see a section Custom