Admin Order - Email is Now Required - Magento 2.3 Updated

Author: solwininfotech

app/code/Magento/Customer/etc/adminhtml/system.xml

@@ -86,6 +86,11 @@
                     <comment>To show VAT number on Storefront, set Show VAT Number on Storefront option to Yes.</comment>
                     <source_model>Magento\Config\Model\Config\Source\Yesno</source_model>
                 </field>
+                <field id="email_required_create_order" translate="label comment" type="select" sortOrder="58" showInDefault="1" showInWebsite="1" showInStore="1" canRestore="1">
+                    <label>Email is required field for Admin order creation</label>
+                    <comment>If set YES Email field will be required during Admin order creation for new Customer.</comment>
+                    <source_model>Magento\Config\Model\Config\Source\Yesno</source_model>
+                </field>
                 <field id="email_domain" translate="label" type="text" sortOrder="60" showInDefault="1" showInWebsite="1" showInStore="1" canRestore="1">
                     <label>Default Email Domain</label>
                 </field>

app/code/Magento/Customer/etc/config.xml

@@ -15,6 +15,7 @@
                 <confirm>0</confirm>
                 <default_group>1</default_group>
                 <tax_calculation_address_type>billing</tax_calculation_address_type>
+                <email_required_create_order>0</email_required_create_order>
                 <email_domain>example.com</email_domain>
                 <email_identity>general</email_identity>
                 <email_template>customer_create_account_email_template</email_template>

app/code/Magento/Sales/Block/Adminhtml/Order/Create/Form/Account.php

@@ -39,6 +39,8 @@ class Account extends AbstractForm
      */
     protected $_extensibleDataObjectConverter;
 
+    private const XML_PATH_EMAIL_REQUIRED_CREATE_ORDER = 'customer/create_account/email_required_create_order';
+
     /**
      * @param \Magento\Backend\Block\Template\Context $context
      * @param \Magento\Backend\Model\Session\Quote $sessionQuote
@@ -147,7 +149,7 @@ protected function _addAdditionalFormElementData(AbstractElement $element)
     {
         switch ($element->getId()) {
             case 'email':
-                $element->setRequired(1);
+                $element->setRequired($this->isEmailRequiredCreateOrder());
                 $element->setClass('validate-email admin__control-text');
                 break;
         }
@@ -204,4 +206,17 @@ private function extractValuesFromAttributes(array $attributes): array
 
         return $formValues;
     }
+
+    /**
+     * Retrieve email is required field for admin order creation
+     *
+     * @return bool
+     */
+    private function isEmailRequiredCreateOrder()
+    {
+        return $this->_scopeConfig->getValue(
+            self::XML_PATH_EMAIL_REQUIRED_CREATE_ORDER,
+            \Magento\Store\Model\ScopeInterface::SCOPE_STORE
+        );
+    }
 }

app/code/Magento/Sales/Model/AdminOrder/Create.php

@@ -33,6 +33,7 @@ class Create extends \Magento\Framework\DataObject implements \Magento\Checkout\
      */
     const XML_PATH_DEFAULT_EMAIL_DOMAIN = 'customer/create_account/email_domain';
 
+    private const XML_PATH_EMAIL_REQUIRED_CREATE_ORDER = 'customer/create_account/email_required_create_order';
     /**
      * Quote session object
      *
@@ -1369,7 +1370,7 @@ protected function _setQuoteAddress(\Magento\Quote\Model\Quote\Address $address,
         $data = isset($data['region']) && is_array($data['region']) ? array_merge($data, $data['region']) : $data;
 
         $addressForm = $this->_metadataFormFactory->create(
-            
+
             AddressMetadataInterface::ENTITY_TYPE_ADDRESS,
             'adminhtml_customer_address',
             $data,
@@ -2037,7 +2038,30 @@ protected function _validate()
      */
     protected function _getNewCustomerEmail()
     {
-        return $this->getData('account/email');
+        $emailrequired = $this->_scopeConfig->getValue(
+            self::XML_PATH_EMAIL_REQUIRED_CREATE_ORDER,
+            \Magento\Store\Model\ScopeInterface::SCOPE_STORE
+        );
+
+        if($emailrequired) {
+          return $this->getData('account/email');
+        } else {
+           $email = $this->getData('account/email');
+           if (empty($email)) {
+               $host = $this->_scopeConfig->getValue(
+                   self::XML_PATH_DEFAULT_EMAIL_DOMAIN,
+                   \Magento\Store\Model\ScopeInterface::SCOPE_STORE
+               );
+               $account = time();
+               $email = $account . '@' . $host;
+               $account = $this->getData('account');
+               $account['email'] = $email;
+               $this->setData('account', $account);
+           }
+
+           return $email;
+        }
+
     }
 
     /**