Magento 2 guest checkout - shipping first name last name pre-filled randomly - how to make it blank

Question

I have the problem that the fields first name and last name of guest checkout are populated already with data which is not the clients data. How can I set that it is blank? Does anyone have an idea why the fields first name and last name are pre-filled on the first hand? Using Magento 2.3.3 Thank you very much already.

Answer 1

Try Below way:

app/code/Vendor/CheckoutStep/etc/frontend/di.xml

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
    <type name="Magento\Checkout\Block\Checkout\LayoutProcessor">
        <plugin name="Vendor_checkout_layout_processor_t" type="Vendor\CheckoutStep\Plugin\Block\LayoutProcessor" sortOrder="10"/>
    </type>
</config>

app/code/Vendor/CheckoutStep/Plugin/Block/LayoutProcessor.php

<?php
namespace Vendor\CheckoutStep\Plugin\Block;


class LayoutProcessor
{
    /**
     * @param \Magento\Checkout\Block\Checkout\LayoutProcessor $subject
     * @param array $jsLayout
     * @return array
     */
    public function afterProcess(
        \Magento\Checkout\Block\Checkout\LayoutProcessor $subject,
        array $jsLayout
    ) {

        $jsLayout['components']['checkout']['children']['steps']['children']['shipping-step']['children']
        ['shippingAddress']['children']['shipping-address-fieldset']['children']['firstname']['value'] = '';

        $jsLayout['components']['checkout']['children']['steps']['children']['shipping-step']['children']
        ['shippingAddress']['children']['shipping-address-fieldset']['children']['lastname']['value'] = '';

        return $jsLayout;
    }
}