Dtjytyk

I didn't found an event when invoice email is sent, so i tried to override MagentoSalesModelOrderEmailSenderBuilder class, the override is working but getting the customer attribute 'invoice_email' is not working, it works on my localhost by in the development website (which is multistore), it didn't work.
I don't know if there's a better solution to use an observer if there's a sending invoice email event

so in my module

Vendor/ModuleName/etc/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">
<preference for="MagentoSalesModelOrderEmailSenderBuilder" type="VendorModuleNameModelSalesOrderEmailSenderBuilder" />
</config>

In app/code/Vendor/ModuleName/Model/Sales/Order/Email/SenderBuilder.php

namespace WetagInvoiceEmailModelSalesOrderEmail;

class SenderBuilder extends MagentoSalesModelOrderEmailSenderBuilder 




public function send()



 $this->configureEmailTemplate();

 $this->transportBuilder->addTo(
 $this->identityContainer->getCustomerEmail(),
 $this->identityContainer->getCustomerName()
 );

 $copyTo = $this->identityContainer->getEmailCopyTo();

 if (!empty($copyTo) && $this->identityContainer->getCopyMethod() == 'bcc') 
 foreach ($copyTo as $email) 
 $this->transportBuilder->addBcc($email);
 
 

 if($this->identityContainer instanceof MagentoSalesModelOrderEmailContainerInvoiceIdentity) 
 //do stuff

 $objectManager = MagentoFrameworkAppObjectManager::getInstance();
 $CustomerModel = $objectManager->create('MagentoCustomerModelCustomer');

 $CustomerModel->setWebsiteId($this->identityContainer->getStore()->getStoreId()); 
 $CustomerModel->loadByEmail($this->identityContainer->getCustomerEmail());
 $email = $CustomerModel->getData()['invoice_email'];


 if(!empty($email))

 $this->transportBuilder->addBcc($email);
 

 
 $transport = $this->transportBuilder->getTransport();
 $transport->sendMessage();

This was an issue with the store id, it shouldn't to be get from the identityContainer, this is my solution

 $url = MagentoFrameworkAppObjectManager::getInstance();
 $storeManager = $url->get('MagentoStoreModelStoreManagerInterface');

 $websiteId = $storeManager->getWebsite()->getWebsiteId();
 // Get Store ID
 //$store = $storeManager->getStore();
 //$storeId = $store->getStoreId();

 $CustomerModel->setWebsiteId($websiteId); 
 $CustomerModel->loadByEmail($this->identityContainer->getCustomerEmail());
 $email = $CustomerModel->getData()['invoice_email'];