I created a custom field for customer: <?php declare(strict_types=1); namespace VendorMyModuleSetupPatchData; use MagentoCustomerModelCustomer; use MagentoCustomerSetupCustomerSetup; use MagentoCustomerSetupCustomerSetupFactory; use MagentoEavModelEntityAttributeSet; use MagentoEavModelEntityAttributeSetFactory; use MagentoFrameworkSetupModuleDataSetupInterface; use MagentoFrameworkSetupPatchDataPatchInterface; use MagentoFrameworkSetupPatchPatchRevertableInterface; class AddCustomAttributeCustomerAttribute implements DataPatchInterface, PatchRevertableInterface { /** * @var ModuleDataSetupInterface */ private $moduleDataSetup;… Read More »Add field to Checkout