How to add subject in custom email template?

Question

I have created custom email template in magento2. Mail function is working fine, but subject is not sent in that email. How can I add the subject in my custom email template.

$transport = $this->transportBuilder
       ->setTemplateIdentifier('my_custom_email_template')
       ->setTemplateOptions(
            [
                'area' => \Magento\Framework\App\Area::AREA_FRONTEND,
                'store' => \Magento\Store\Model\Store::DEFAULT_STORE_ID,
            ]
        )
       ->setTemplateVars($vars)
       ->setFrom($sender)
       ->addTo($toEmail)
       ->getTransport();
    $transport->sendMessage();
    $this->inlineTranslation->resume();

Answer 1

You can write email subject to in your email .html file

<!--@subject {{trans "Your Subject Write Here "}}  @-->

You can pass subject dynamic by follow below example

<!--@subject {{trans "Welcome to %store_name" store_name=$store.getFrontendName()}} @-->

Answer 2

please make ensure you added the below line in your email template file.

<!--@subject Subject Of your email  @-->

More reference follow the link

https://stackoverflow.com/questions/35123779/how-to-add-subject-in-tranctional-email-template-for-magento-2-version

Answer 3

I tried and It was working

For multiple replacements, try this

<!--@subject {{trans "%candidate_name applied to %job_name" candidate_name=$candidate.full_name job_name=$job_name}} @-->

Answer 4

Use the method clearSubject(), but to apply when you are to call getMessage() method, let this example over here

$transport = $this
    ->transportBuilder
    ->setTemplateIdentifier('send_email_email_template')
    ->setTemplateOptions( [
        'area' => \Magento\Framework\App\Area::AREA_FRONTEND,
        'store' => \Magento\Store\Model\Store::DEFAULT_STORE_ID,
    ])
    ->setTemplateVars(array())
    ->setFrom($sender)
    ->addTo($toEmail, '')
    >getTransport();
$transport
    ->getMessage()
    ->setMessageType( \Magento\Framework\Mail\MessageInterface::TYPE_HTML)
    ->setBody($MyHtml)
    ->clearSubject()
    ->setSubject("MySubject");
$transport->sendMessage();

Answer 5

You have to add the file vendor\magento\module-contact\view\frontend\email\submitted_form.html to your Theme at THEME\Magento_Contact\email\submitted_form.html

then change the title like this:

Before

<!--
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
-->
<!--@subject {{trans "Contact Form"}} @-->
<!--@vars {
"var data.comment":"Comment",
"var data.email":"Sender Email",
"var data.name":"Sender Name",
"var data.telephone":"Sender Telephone"
} @-->

{{template config_path="design/email/header_template"}}

<table class="message-details">
    <tr>
        <td><strong>{{trans "Name"}}</strong></td>
        <td>{{var data.name}}</td>
    </tr>
    <tr>
        <td><strong>{{trans "Email"}}</strong></td>
        <td>{{var data.email}}</td>
    </tr>
    <tr>
        <td><strong>{{trans "Phone"}}</strong></td>
        <td>{{var data.telephone}}</td>
    </tr>
</table>
<p><strong>{{trans "Message"}}</strong></p>
<p>{{var data.comment}}</p>

{{template config_path="design/email/footer_template"}}

After

Example: Changes subject to "Welcome at %name_of_your_shop%"

<!--
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
-->
<!--@subject {{trans "Welcome to %store_name" store_name=$store.getFrontendName()}} @-->
<!--@vars {
"var data.comment":"Comment",
"var data.email":"Sender Email",
"var data.name":"Sender Name",
"var data.telephone":"Sender Telephone"
} @-->

{{template config_path="design/email/header_template"}}

<table class="message-details">
    <tr>
        <td><strong>{{trans "Name"}}</strong></td>
        <td>{{var data.name}}</td>
    </tr>
    <tr>
        <td><strong>{{trans "Email"}}</strong></td>
        <td>{{var data.email}}</td>
    </tr>
    <tr>
        <td><strong>{{trans "Phone"}}</strong></td>
        <td>{{var data.telephone}}</td>
    </tr>
</table>
<p><strong>{{trans "Message"}}</strong></p>
<p>{{var data.comment}}</p>

{{template config_path="design/email/footer_template"}}

What can you use?

There is a method which contains all data which you can use, search the method addEmailVariables() in the file vendor\magento\module-email\Model\AbstractTemplate.php

For example the store object is set here like this:

protected function addEmailVariables($variables, $storeId)
{
    $store = $this->storeManager->getStore($storeId);
    if (!isset($variables['store'])) {
        $variables['store'] = $store;
    }
    ...

If this is not enough, then you have to extend this method from your module.