Magento – Magento2- How to remove last name

You have to copy file from

projectroot\vendor\magento\module-customer\view\frontend\templates\widget\name.phtml

And paste to in you theme.

You can find class field-name-lastname in code. delete complete this div for last name.

You have to run below query in your database for set lastname as optional for customer.

UPDATE eav_attribute SET is_required = 0 WHERE attribute_code = 'lastname' and `entity_type_id` = 1

Run Command : php bin/magento cache:clean

Let me know if you have any issue.

Here's a simple method that can be used to make any required address field optional.

First create a plugin for Magento\Checkout\Block\Checkout\LayoutProcessor. Define the class as follow:

<?php


namespace Vendor\Module\Plugin;

class LayoutProcessor
{

    public function afterProcess(
        \Magento\Checkout\Block\Checkout\LayoutProcessor $subject,
        $jsLayout
    ) {
        // Make fields not required
        
        $nameLayout = [
            'validation' => [
                'required_entry' => false
            ]
        ];

        // Change in shipping address

        $firstnameField = &$jsLayout['components']['checkout']['children']['steps']['children']['shipping-step']
                          ['children']['shippingAddress']['children']['shipping-address-fieldset']['children']['firstname'];
        $lastnameField = &$jsLayout['components']['checkout']['children']['steps']['children']['shipping-step']
                         ['children']['shippingAddress']['children']['shipping-address-fieldset']['children']['lastname'];

        $firstnameField = array_merge($firstnameField, $nameLayout);

        $lastnameField = array_merge($lastnameField, $nameLayout);

        // Change in billing address

        foreach ($jsLayout['components']['checkout']['children']['steps']['children']['billing-step']['children']
                 ['payment']['children']['payments-list']['children'] as &$child)
        {
            if (isset($child['children']['form-fields'])) {
                $child['children']['form-fields']['children']['firstname'] =
                    array_merge($child['children']['form-fields']['children']['firstname'], $nameLayout);
                $child['children']['form-fields']['children']['lastname'] =
                    array_merge($child['children']['form-fields']['children']['lastname'], $nameLayout);
            }
        }

        return $jsLayout;
    }
}

All this does is change the first and last name fields to optional in the checkout address forms. However, if the fields are left blank, the various address verifications that occur on the server-side will fail so there's one more step to get around the verification.

We'll make a plugin for the getFirstname and getLastname methods of Magento\Quote\Model\Quote\Address as follows:

<?php


namespace Vendor\Module\Plugin;

class Address
{
    public function afterGetFirstname(
        \Magento\Quote\Model\Quote\Address $subject,
        $result
    ) {
        if (empty(trim($result))) {
            return "N/A";
        }

        return $result;
    }

    public function afterGetLastname(
        \Magento\Quote\Model\Quote\Address $subject,
        $result
    ) {
        if (empty(trim($result))) {
            return "N/A";
        }

        return $result;
    }
}

In this plugin we check if the address has a first and last name associated with it. If not then we emit a placeholder value to satisfy the verification. This is much simpler than having to override all the classes involved in address verification.

With these two plugins in place, the first and last name fields in checkout will be optional.