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

Suresh Kumar R

Kombiah Ramaiah

Gopi C

Muthu Pandi

Happy Coders

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.
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.
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.
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!
<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>
<h3>MSG91 Integration</h3>
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>
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
<h3>Data Handling and Privacy</h3>
<ul>
<li>Only the phone number 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 not collect analytics or track users without consent.</li>
<li>All configurable from the plugin settings page.</li>
</ul>
🔥 Features: 
– Full-screen or popup OTP login form 
– WooCommerce login compatibility 
– OTP verification via MSG91 (SMS & WhatsApp) 
– Email OTP login option 
– WhatsApp Send OTP support 
– Automatic SMS/WhatsApp alerts for: 
 – New user registration 
 – Order placed 
 – Order shipped 
 – Order completed 
 – Cart cronjob (abandoned cart reminders) 
– Customizable resend timer 
– Country code and flag selection 
– Shortcodes for embedding login anywhere 
– Admin panel for MSG91 and plugin settings 
– Customizable transactional SMS templates with dynamic variables (e.g., <code>##customer_name##</code>, <code>##order_id##</code>). 
– Dynamic OTP length (4 or 6 digits).
🎯 Shortcodes: 
– <code>[msg91_otp_form]</code> – Display full-screen OTP login form anywhere (pages, posts, widgets).
🔧 Admin Settings: 
– MSG91 Auth Key, Sender ID, Template IDs 
– Enable/disable WhatsApp OTP option 
– Country code options 
– OTP resend timer settings 
– Button/text color customization 
– Post-login redirect URL 
– OTP send limit per user/day 
– Enable/disable specific SMS/WhatsApp features (registration, order, cart) 
– Customizable SMS message templates with dynamic variables.
<h3>Configuration</h3>
<ol>
<li>Get an MSG91 Account: This plugin requires an MSG91 account. If you don’t have one, you can <a href="https://msg91.com/signup?utm_source=happycoders" rel="nofollow ugc">sign up here</a>.</li>
<li>Enter Credentials: In the plugin settings, enter your MSG91 Auth Key, Sender ID, and DLT-approved Template IDs.</li>
<li>Display the Form: 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>
We are committed to helping you succeed. To get you the fastest and most accurate help, please direct your query to the correct team.
<h3>For Plugin Issues & Configuration (Happy Coders Support)</h3>
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. 
Primary Support Channel: <a href="https://wordpress.org/support/plugin/happy-coders-otp-login/" rel="ugc">WordPress.org Support Forum</a>
<h3>For MSG91 Service & Delivery Issues (MSG91 Support)</h3>
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. 
Contact MSG91 Support: <a href="https://msg91.com/in/contact-us" rel="nofollow ugc">Visit the MSG91 Contact Page</a>

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