Prevent invoice email notification after invoice creation in Magento 2

Question

I have used below event to stop Invoice email notification that is triggered after the invoice creation.

Vendor/Module/etc/events.xml

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd">
  <event name="sales_order_invoice_save_after">
      <observer name="stop_invoice_email_send" instance="Vendor\Module\Observer\StopInvoiceEmail" />
   </event>
</config>

Vendor/Module/Observer/StopInvoiceEmail.php

 <?php
 namespace Vendor\Module\Observer;

 use Magento\Framework\Event\Observer;
 use Magento\Framework\Event\ObserverInterface;
 use Psr\Log\LoggerInterface;

 class StopInvoiceEmail implements ObserverInterface
 {
   protected $logger;

   public function __construct(LoggerInterface $logger)
    {
       $this->logger = $logger;
    }
 public function execute(Observer $observer)
 {
    try{
        $invoice = $observer->getEvent()->getInvoice();
        // Check the payment method used for the order
        $order = $invoice->getOrder();
        $payment = $order->getPayment();
        if ($payment->getMethod() === 'razorpay') { which uses the authorzse and capture
            $this->logger->info('Razorpay method inside--');
            // Prevent sending invoice email
            $invoice->setEmailSent(true);
        }
    }catch(\Exception $e){
        $this->logger->info('An error occurred: ' . $e->getMessage());
     }
   }
}

The above code is still sending the invoice email notification to the customer. Can anyone suggest how we can achieve this? Thanks in advance!!

Answer 1

Can you please try this

You can disable the invoice email in System > Configuration > Sales Emails then look for invoice and set 'enabled' to 'no'.

OR

// Prevent sending invoice email
 $invoice->setEmailSent(false); // replace true to false

Answer 2

Your observer is executed after the invoice is already saved, so you need to save the attribute you just changed.

And just to be sure, I would also add the "send_email" flag to false.

// $this->entityResource being : \Magento\Sales\Model\ResourceModel\Order\Invoice
$invoice->setEmailSent(true);
$invoice->setSendEmail(false);
$this->entityResource->saveAttribute(
    $invoice,
    ['email_sent', 'send_email']
);

Here would be your full Observer :

<?php
namespace Mindtree\Billdesk\Observer;

use Magento\Framework\Event\Observer;
use Magento\Framework\Event\ObserverInterface;
use Magento\Sales\Model\ResourceModel\Order\Invoice;
use Psr\Log\LoggerInterface;

class StopInvoiceEmail implements ObserverInterface
{
    protected $logger;

    protected $entityResource;

    public function __construct(
        LoggerInterface $logger,
        Invoice $entityResource
    ) {
        $this->logger = $logger;
        $this->entityResource = $entityResource;
    }
    public function execute(Observer $observer)
    {
        try{
            $invoice = $observer->getEvent()->getInvoice();
            // Check the payment method used for the order
            $order = $invoice->getOrder();
            $payment = $order->getPayment();
            if ($payment->getMethod() === 'razorpay') {
                $this->logger->info('Razorpay method inside--');
                // Prevent sending invoice email
                $invoice->setEmailSent(true);
                $invoice->setSendEmail(false);
                $this->entityResource->saveAttribute(
                    $invoice,
                    ['email_sent', 'send_email']
                );
            }
        }catch(\Exception $e){
            $this->logger->info('An error occurred: ' . $e->getMessage());
        }
    }
}

Answer 3

Create plugin in 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">
    <type name="Magento\Sales\Model\Order\Invoice">
        <plugin name="prevent_invoice_email_notification" type="Vendor\Module\Plugin\PreventInvoiceMail" sortOrder="1" />
    </type>
</config>

Create the PreventInvoiceMail.php file in the Vendor/Module/Plugin directory:

<?php
namespace Vendor\Module\Plugin;

class PreventInvoiceMail
{
    public function beforeRegister(Magento\Sales\Model\Order\Invoice $invoice)
    {
        // Disable sending invoice email
        $invoice->setEmailSent(true);
        return [$invoice];
    }
}