Katsushi Kawamori

<p>Enter your email address, and send you an email with a magic link or QR Code to login without a password.</p>
<h4>Login</h4>
<ul>
<li>Login with email address only.</li>
<li>Only registered users can login.</li>
<li>Password-less login from the magic link or QR code notified in the email.</li>
<li>shortcode : <code>[magic_login]</code></li>
<li>action hook : <code>do_action( 'magic_email_send', $emails | array, true | bool )</code> : To send the magic link simultaneously from the management account.</li>
<li>QR code login on the user’s administration screen.</li>
</ul>
<h4>Thanks</h4>
<ul>
<li>This plugin is a modified version of <a href="https://wordpress.org/plugins/passwordless-login/" rel="ugc">Passwordless Login</a>.</li>
<li>The main changes are the addition of various filter hooks and the addition of the following action hooks.</li>
</ul>
<h4>Action hook</h4>
<ul>
<li>This is for sending bulk e-mails with a magic link for login to multiple accounts from the management screen.</li>
<li>When using this action hook, the URL of the page where the shortcode [magic_login] is placed should be specified in the filter hook ‘magic_login_mail_url’.</li>
</ul>
<pre><code>/** ==================================================
 * To send the magic link simultaneously from the management account.
 *
 * @param array  $emails  Multiple email addresses.
 * @param bool   true  Output notifications to the management screen immediately after sending.
 */
do_action( 'magic_email_send', $emails, true );
</code></pre>
<h4>Filter hooks</h4>
<pre><code>/** ==================================================
 * Filter for magic link url with mail.
 *
 */
add_filter( 'magic_login_mail_url', function(){ return 'url'; }, 10, 1 );
</code></pre>
<pre><code>/** ==================================================
 * Currently logged in user link for Magic Login Mail
 *
 * @param string $url  URL.
 * @param int    $user_id  User ID.
 * @return $url
 */
add_filter( 'magic_login_mail_user_redirect', 'redirect_url_login_users', 10, 2 );

/** ==================================================
 * Login user after redirect for Magic Login Mail
 *
 * @param string $url  URL.
 * @param int    $user_id  User ID.
 * @return $url
 */
add_filter( 'magic_login_mail_after_login_redirect', 'redirect_url_login_users', 10, 2 );

function redirect_url_login_users( $url, $user_id ){
    /* your code */
    return $url;
}
</code></pre>
<pre><code>/** ==================================================
 * Filter for message with shortcode form.
 *
 */
add_filter( 'magic_login_mail_success_link_msg', function(){ return 'Message for success.'; }, 10, 1 );
add_filter( 'magic_login_mail_success_login_msg', function(){ return 'Message for success with login.'; }, 10, 1 );
add_filter( 'magic_login_mail_valid_errors', function(){ return 'Message for mail validation error.'; }, 10, 1 );
add_filter( 'magic_login_mail_email_errors', function(){ return 'Message for sent mail error.'; }, 10, 1 );
add_filter( 'magic_login_mail_invalid_token_error', function(){ return 'Message for token error.'; }, 10, 1 );
add_filter( 'magic_login_mail_form_label', function(){ return 'Message for form label.'; }, 10, 1 );
</code></pre>
<pre><code>/** ==================================================
 * Filter for color with shortcode form.
 *
 */
add_filter( 'magic_login_mail_success_link_msg_back_color', function(){ return '#e7f7d3'; }, 10, 1 );
add_filter( 'magic_login_mail_success_login_msg_back_color', function(){ return '#e7f7d3'; }, 10, 1 );
add_filter( 'magic_login_mail_valid_errors_back_color', function(){ return '#ffebe8'; }, 10, 1 );
add_filter( 'magic_login_mail_email_errors_back_color', function(){ return '#ffebe8'; }, 10, 1 );
add_filter( 'magic_login_mail_invalid_token_error_back_color', function(){ return '#ffebe8'; }, 10, 1 );
</code></pre>
<pre><code>/** ==================================================
 * Filter for input text size.
 *
 */
add_filter( 'magic_login_mail_input_size', function(){ return 17; }, 10, 1 );
</code></pre>
<pre><code>/** ==================================================
 * Filter for class name.
 *
 */
add_filter( 'magic_login_mail_notice_class_name', function(){ return 'mynotice'; }, 10, 1 );
add_filter( 'magic_login_mail_form_class_name', function(){ return 'myform'; }, 10, 1 );
add_filter( 'magic_login_mail_label_class_name', function(){ return 'mylabel'; }, 10, 1 );
add_filter( 'magic_login_mail_input_class_name', function(){ return 'myinput'; }, 10, 1 );
add_filter( 'magic_login_mail_submit_class_name', function(){ return 'mysubmit'; }, 10, 1 );
</code></pre>
<pre><code>/** ==================================================
 * Filter for message with mail subject.
 *
 */
add_filter( 'magic_login_mail_subject', function(){ return 'subject'; }, 10, 1 );
</code></pre>
<pre><code>/** ==================================================
 * Filter for message with mail.
 *
 * @param string $message  message.
 * @param string $url  url.
 * @param string $exp_date_time  expiration date and time.
 */
add_filter(
    'magic_login_mail_message',
    function( $message, $url, $exp_date_time ) {

        $message .= '<br><br>' . 'You may only log in once using the link above.';

        return $message;
    },
    10,
    3
);
</code></pre>
<pre><code>/** ==================================================
 * Filter for login expiration.
 *
 */
add_filter( 'magic_login_mail_expiration', function(){ return 10; }, 10, 1 );
</code></pre>


Magic Login Mail or QR Code

Enter your email address, and send you an email with a magic link or QR Code to login without a password.

Kombiah Ramaiah

Suresh Kumar R

Muthu Pandi

Happy Coders

Gopi C

<p>Happy Coders OTP Login is a simple, secure, and customizable OTP login plugin for WordPress and WooCommerce sites. It enables users to log in using their mobile number via one-time password (OTP) verification, using the MSG91 SMS API, and also supports email-based OTP login.</p>
<p>The plugin supports full-screen and popup login forms, integrates smoothly with WooCommerce, and improves user experience by replacing traditional email/password logins with secure phone-based authentication.</p>
<p>Now, you can fully customize your transactional SMS messages using dynamic variables like <code>##customer_name##</code>, <code>##order_id##</code>, and more, directly from the plugin settings.</p>
<p><strong>Watch our <a href="https://www.youtube.com/watch?v=JTToziAf5gM" rel="nofollow ugc">quick video tutorial</a> to see how easy it is to set up!</strong></p>
<span class="embed-youtube" style="text-align:center; display: block;"><iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/JTToziAf5gM?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe></span>
<h3>MSG91 Integration</h3>
<p>This plugin uses the MSG91 SMS and WhatsApp gateway (https://msg91.com) to send and verify OTPs, and also to send order-related notifications. You must have a valid MSG91 account and approved SMS/WhatsApp templates.  You can <a href="https://msg91.com/signup?utm_source=happycoders" rel="nofollow ugc">sign up here</a></p>
<p>Visit <a href="https://msg91.com/legal/terms" rel="nofollow ugc">MSG91’s Terms of Service</a> and <a href="https://msg91.com/legal/privacy" rel="nofollow ugc">Privacy Policy</a> for more details about how they handle data</p>
<h3>Data Handling and Privacy</h3>
<ul>
<li>Only the <strong>phone number</strong> is sent to MSG91 for OTP and transactional SMS/WhatsApp delivery.</li>
<li>No personal or sensitive user data is stored or tracked by this plugin.</li>
<li>Plugin does <strong>not collect analytics</strong> or track users without consent.</li>
<li>All configurable from the plugin settings page.</li>
</ul>
<p>🔥 <strong>Features:</strong><br />
– Full-screen or popup OTP login form<br />
– WooCommerce login compatibility<br />
– OTP verification via MSG91 (SMS & WhatsApp)<br />
– Email OTP login option<br />
– WhatsApp Send OTP support<br />
– Automatic SMS/WhatsApp alerts for:<br />
  – New user registration<br />
  – Order placed<br />
  – Order shipped<br />
  – Order completed<br />
  – Cart cronjob (abandoned cart reminders)<br />
– Customizable resend timer<br />
– Country code and flag selection<br />
– Shortcodes for embedding login anywhere<br />
– Admin panel for MSG91 and plugin settings<br />
– Customizable transactional SMS templates with dynamic variables (e.g., <code>##customer_name##</code>, <code>##order_id##</code>).<br />
– Dynamic OTP length (4 or 6 digits).</p>
<p>🎯 <strong>Shortcodes:</strong><br />
– <code>[msg91_otp_form]</code> – Display full-screen OTP login form anywhere (pages, posts, widgets).</p>
<p>🔧 <strong>Admin Settings:</strong><br />
– MSG91 Auth Key, Sender ID, Template IDs<br />
– Enable/disable WhatsApp OTP option<br />
– Country code options<br />
– OTP resend timer settings<br />
– Button/text color customization<br />
– Post-login redirect URL<br />
– OTP send limit per user/day<br />
– Enable/disable specific SMS/WhatsApp features (registration, order, cart)<br />
– Customizable SMS message templates with dynamic variables.</p>
<h3>Configuration</h3>
<ol>
<li><strong>Get an MSG91 Account:</strong> This plugin requires an MSG91 account. If you don’t have one, you can <strong><a href="https://msg91.com/signup?utm_source=happycoders" rel="nofollow ugc">sign up here</a></strong>.</li>
<li><strong>Enter Credentials:</strong> In the plugin settings, enter your MSG91 Auth Key, Sender ID, and DLT-approved Template IDs.</li>
<li><strong>Display the Form:</strong> Use the shortcode <code>[msg91_otp_form]</code> on any page or add the CSS class <code>otp-popup-trigger</code> to a button/link to show the login form.</li>
</ol>
<h3>Support</h3>
<p>We are committed to helping you succeed. To get you the fastest and most accurate help, please direct your query to the correct team.</p>
<h3>For Plugin Issues & Configuration (Happy Coders Support)</h3>
<p>If you need help with installing the plugin, configuring its settings in WordPress, encounter a bug, or have a feature request for the plugin itself, please use our official support channel.<br />
<strong>Primary Support Channel:</strong> <a href="https://wordpress.org/support/plugin/happy-coders-otp-login/" rel="ugc">WordPress.org Support Forum</a></p>
<h3>For MSG91 Service & Delivery Issues (MSG91 Support)</h3>
<p>If your question is about the MSG91 service itself—such as your account, API key, billing, Sender ID approval, DLT templates, or SMS/WhatsApp delivery reports—you must contact the MSG91 support team directly. They are the experts on their platform and can assist you with all service-related inquiries.<br />
<strong>Contact MSG91 Support:</strong> <a href="https://msg91.com/in/contact-us" rel="nofollow ugc">Visit the MSG91 Contact Page</a></p>


Happy Coders OTP Login for WooCommerce

Secure OTP login for WordPress & WooCommerce using SMS, WhatsApp, and Email. Send automated order alerts with the MSG91 API. Be passwordless!

Magic Login Mail or QR Code vs Happy Coders OTP Login for WooCommerce