The features of Magento 2 OTP Login Extension for customers are,

• They can Login/Sign up with just their mobile and OTP.
• Easily update the mobile number in their profile.
• Receive OTP for password reset.
• Receive OTP check for Cash on Delivery orders.

Read this guide on How to Configure Mobile OTP Login and Order SMS Notifications to Magento 2 to setup this extension to send promotional messages.

Here are the few more resource to help you get most out of this Magento 2 Mobile OTP Login and Order SMS Notifications Extension.

• How to Allow Login via Mobile Number OTP in Magento 2?
• How to Verify Customers Identity with Magento 2 Mobile OTP Login Extension
• What are SMS Order Notifications for eCommerce? What are it’s Benefits?
• How to Set New Order SMS Notification in Magento 2