How to Set Up WooCommerce Checkout Validation for a Seamless User Experience

WooCommerce checkout validation is crucial for a smooth order process and efficient order management.

A poorly validated checkout frustrates customers, leading to abandoned carts and lost sales. Proper validation reduces errors, enhances customer satisfaction, and boosts conversions, ensuring a seamless experience for all parties.

Moreover, an optimized checkout ensures that the store owner collects all the required information to process orders effectively.

By default, WooCommerce validates essential fields, but it doesn’t validate optional fields like phone numbers or custom fields.

In this blog post, we’ll dive into how WooCommerce checkout validation works. We’ll also guide you on how to validate all necessary fields, ensure phone number accuracy, and validate custom fields when needed.

Let’s get started!

Understanding Default WooCommerce Checkout Validation 

Let's understand what checkout validation is and how it works in WooCommerce.

What is WooCommerce Checkout Validation?

WooCommerce checkout validation ensures customers enter complete and correctly formatted details like email, name, address, and payment info. It helps catch errors in real-time, making the checkout smoother and more reliable.

How Default Validation Works For Checkout Fields 

By default, WooCommerce implements both required field validation and email format validation during checkout.

• Required field validation

WooCommerce marks key checkout fields like email address, first name, last name, shipping address (city, zip code, state), and payment details as required. It runs server-side validation to ensure these fields aren’t left blank. If any required field is empty, WooCommerce displays an error message and blocks the checkout until it’s fixed.

• Email format validation

For email addresses, WooCommerce applies regex-based format validation to check if the input matches a valid email structure (like [email protected]). If the format is incorrect, an error is shown and the form can't be submitted.

Default Checkout Validation Options in WooCommerce and Their Limitations

Here are the limitations of the default checkout validation options: 

• Settings are limited

When it comes to validation, WooCommerce offers limited flexibility for customization. 

To access the relevant settings, go to the Customization menu and navigate to WooCommerce ⇒ Checkout.

Here, you can enable the option “Highlight required fields with an asterisk” to mark required fields visually.

Fields like Company and Address Line 2 can be configured as optional or required. The Company field can also be hidden entirely if it’s not necessary for your store.

• No phone number format validation

The biggest problem with default validation is that it doesn’t validate the phone format based on the country. This lack of country-specific validation means a customer from the US could enter a number in the wrong format, and the system wouldn’t flag it

So you’re always at risk of collecting incorrect phone numbers, which can result in delivery issues and failed orders. 

Later in this blog, we will share how to validate each field in line validation and also validate phone nubmber for chosen country. 

How to Setup WooCommerce Checkout Validation For All Fields (Including Phone Field)

In this section, we’ll show you how to create an inline WooCommerce checkout validation for a smoother shopping experience. Plus, add phone field validation with automatic country flag and prefix.

We’ll use FunnelKit Funnel Builder to replace the basic WooCommerce checkout with a more user-friendly, multi-step form. This will help reduce cart abandonment, as 28% of shoppers leave due to a lengthy, confusing checkout process.

Make sure to install and activate both the free and premium versions of FunnelKit Funnel Builder to get started.

Step 1: Create a store checkout

Firstly, we need to create a store checkout that will replace the default WooCommerce page.

To do so, navigate to FunnelKit ⇒ Store Checkout and click on the ‘Create Store Checkout’ button.

FunnelKit Funnel Builder offers many pre-built templates. Choose your favorite page builder. After that, hover over the template and click Preview. 

To import the template, hit Import This Funnel, provide a name, and hit Done. 

Now you should have a new store checkout with three steps: Checkout, upsell, and thank you. 

Step 2: Add validation for checkout fields

To add validation to the checkout fields, hit the checkout step, next, scroll down to the Checkout Form Fields section.

You can edit the content and design of your checkout page using the Edit Template option. For more details, you can refer to our blog on WooCommerce multi-step checkout.

To add validation to any field, click on the field. Then, make it required.

For the shipping and billing address sections, select any of the options. Here, you can hide certain fields or make them optional or required. For example, you can make the billing phone field required.

Next, if you want, you can add a separate phone field to your checkout page, similar to the default checkout.

We are adding it next to the billing address field. 

After making the validation adjustment to all the checkout fields, make sure to hit Save to update.

Step 3: Enable inline validation

The next step is to enable inline validation for all checkout fields. This will display error messages inline, rather than at the top, ensuring a smoother shopping experience.

To do this, move to the Optimization tab, expand the Inline Field Validation option, and choose Yes to enable it.

Make sure to hit Save to update. 

Step 4: Enable enhanced phone field 

Scroll down to find the “Enhanced Phone Field” option. Enabling this feature will set up phone number validation with the selected country.

After enabling, you can also choose to save the phone number with or without the country code in the order.

Also, to help the users, you can add a phone help text.

After setting up phone field validation on the checkout page, make sure to save it.

Step 5: Activate the store checkout 

Like the checkout page, you can customize the upsell offer and thank you page. 

The final step is to enable the store checkout. To do this, click “Enable store checkout.”

This will make your store checkout active and live on your WooCommerce store.

Step 6: Test the phone field validation 

Now, try to test a place order, and you should see an error message if the entered phone number doesn’t match the format of the selected country.

That’s how simple it is to add validation to the phone field in WooCommerce checkout using FunnelKit Funnel Builder. 

How to Validate Custom Fields in WooCommerce Checkout? 

With FunnelKit Funnel Builder, you can add any custom field to your WooCommerce checkout page and add validation. 

Step 1: Add a custom field 

To do so, ensure you are in the Checkout Form Fields section and click the Add New Field button. 

For example, here we are adding a preferred delivery time field.

Step 2: Add validation to the custom field 

Now, to validate that users must provide this information, turn on the Required toggle. 

After creating, drag and drop the custom field on the checkout form. 

Step 3: Test the custom field validation on the WooCommerce checkout page 

Now, try to place an order. A validation error message will appear if the custom field is not completed as required.

This is how you can validate any custom field. 

Bonus: Enable Address Field Validation to Collect Accurate Shipping Address at Checkout

On the optimization tab, you can enable WooCommerce address field validation to ensure customers enter complete and accurate shipping details, including house or building number, at checkout. This helps you to collect a complete address, which can help you to reduce delivery errors and avoid costly returns.

More details on the video below:

4 Best Practices to follow when implementing Checkout Field Validation in your store

• Real-time validation

Real-time validation allows users to correct information instantly, reducing friction and frustration. Users can fix errors as they go instead of waiting until the form is submitted. For instance, if an email address is entered incorrectly, an error message should display right away, not after the user tries to submit the form.

• Clear and helpful error messages

When validation fails, provide clear, specific error messages that explain what went wrong and how to fix it. This helps users quickly understand and correct errors, reducing the chances of cart abandonment. Instead of a generic "Enter the correct" message, use messages like “The provided phone number is not valid”.

• Focus on the required fields only

Mark fields as required only when necessary to avoid overwhelming users with too many required inputs. As a standard practice, use a “*” symbol next to fields needed to indicate that they are mandatory. To keep the checkout page clean, consider making optional fields collapsible. 

• Use proper field types and formats

Match the input field types to the requested data (e.g., use the email type for emails, number type for phone numbers, etc.). This ensures that users enter data in the correct format, reducing validation errors and speeding up form completion.

Frequently Asked Questions About WooCommerce Checkout Validation 

• Why Validating Checkout Fields is Important in WooCommerce? 

Validating WooCommerce checkout fields helps make sure everything is filled out correctly before a customer places an order. It catches simple mistakes like a missing phone number or a wrongly typed email, so there are fewer issues with shipping or getting in touch with the customer later. This also helps keep your order and customer info accurate.

It also makes the checkout process smoother for your customers. When the form gives helpful tips in real-time, shoppers know what to fix right away. This builds trust in your store and makes people more likely to finish their purchase without leaving their cart behind.

• What types of fields should I validate on the WooCommerce checkout page?

You should validate all required fields like name, email, phone number, address, and payment details. It’s essential to check formats (like proper email or phone number structure) and make sure nothing essential is left blank. This ensures smooth order processing and fewer customer issues later.

• Will checkout validation slow down the checkout process?

No, when done right, it actually speeds things up. Real-time validation helps users fix mistakes as they go, so they don’t have to re-enter everything at the end. It makes the process smoother and less frustrating.

Validate WooCommerce Checkout Field to Ensure a Seamless Shopping Experience and Boost Sales!

WooCommerce checkout validation helps users place orders quickly without making mistakes, ensuring a smooth and seamless ordering process that leads to customer satisfaction. 

Additionally, collecting all the necessary information correctly will allow for more efficient order management. 

Our experts highly recommend using the inline custom field validation and the enhanced phone field option available in FunnelKit Funnel Builder. 

With this sales funnel builder, you can boost the average order value of your WooCommerce store with pre- and post-purchase offers like order bumps and one-click upsells. 

Get FunnelKit Funnel Builder today, and optimize the shopping experience in your WooCommerce store with modern checkout field optimization options!

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