{"id":16836,"date":"2026-06-20T15:03:03","date_gmt":"2026-06-20T09:33:03","guid":{"rendered":"https:\/\/www.fast2sms.com\/help\/?p=16836"},"modified":"2026-06-20T15:09:20","modified_gmt":"2026-06-20T09:39:20","slug":"send-multi-channel-otp-sms-from-fast2sms","status":"publish","type":"post","link":"https:\/\/www.fast2sms.com\/help\/send-multi-channel-otp-sms-from-fast2sms\/","title":{"rendered":"Smart OTP: Send Multi Channel OTP SMS from Fast2SMS"},"content":{"rendered":"

Have you ever wished to send Fast2SMS<\/a> OTP messages through a priority route to ensure faster and more reliable delivery? Introducing our new Multi Channel Smart OTP<\/strong> feature, designed to help businesses send OTP messages on priority so that not a single verification message is missed.<\/p>\n

With Smart OTP, you can enhance authentication success rates and provide a seamless user experience. In this article, we will explore what the Smart OTP feature is, and the complete process of using it to send OTP messages efficiently.<\/p>\n

 <\/p>\n

\"bulk-SMS-service-signup\"<\/a><\/p>\n

 <\/p>\n

What is Smart OTP feature of Fast2SMS?<\/strong><\/h2>\n

Smart OTP<\/strong> is a newly launched feature of Fast2SMS<\/strong><\/a> designed to maximise OTP delivery success by using a dedicated delivery route and intelligent fallback mechanisms. With Smart OTP, businesses can send OTP messages using two channels\u2014SMS and WhatsApp. You can choose either channel as your primary delivery route and the other as a fallback option.<\/p>\n

For instance, if an OTP is initially sent via SMS and the message is not delivered, the system automatically retries the same OTP through WhatsApp. Similarly, if WhatsApp is your primary channel and the message fails to reach the recipient, it is instantly reattempted via SMS. This multi channel delivery approach significantly reduces OTP delivery failures, improves authentication success rates, and ensures a smooth and uninterrupted user experience for your customers.<\/p>\n

 <\/p>\n

 <\/p>\n

How to send Muti channel OTP SMS from Fast2SMS?<\/strong><\/h2>\n

1. Login to your Fast2SMS<\/strong><\/a> account and select Smart OTP<\/strong> tab. The following screen will appear. Make sure you have completed the previous steps of adding DLT Entity ID in DLT Manager, adding approved Sender ID, and approved DLT Content Template into Fast2SMS before using the Smart OTP feature. After completing the steps, click on ‘Add OTP Template’<\/strong> tab.<\/p>\n

\"Smart<\/a><\/p>\n

 <\/p>\n

2. Once you click on the tab, the following pop-up box will appear as shown below. Here, we have selected SMS as our primary channel. Click on the Select Entity drop down menu, your DLT Entity will be displayed that you have added into your Fast2SMS account.<\/p>\n

\"Select<\/a><\/p>\n

 <\/p>\n

3. Next, click on Select Sender drop down menu, list of added Sender ID will be displayed, select the one from which you want the message to get sent.<\/p>\n

\"Select<\/a><\/p>\n

 <\/p>\n

4. Next select the Template from the Select Template drop down menu.<\/p>\n

\"otp<\/a><\/p>\n

 <\/p>\n

5. Your content preview will be visible on the OTP Content Preview field. In the next field ‘Select OTP Variable for sending OTP’, you need to choose where your OTP will be shown; in Variable 1 or in Variable 2.<\/p>\n

\"content<\/a><\/p>\n

 <\/p>\n

6. Next, you need to select the checkbox ‘Set Fallback template<\/strong>‘ if you wish to retry sending message from Whatsapp in case your primary route of SMS gets failed. Select Fallback Whatsapp Business Number, then Select Fallback Whatsapp Template from the drop down menu.<\/p>\n

Your message preview will appear on the tab ‘Fallback OTP Content Preview’. Next, select the Variable option where you want your variable value to appear in the message. Then, click on ‘Assign OTP Template<\/strong>‘.<\/p>\n

\"select<\/a><\/p>\n

 <\/p>\n

7. Once you click on the tab\u00a0 ‘Assign OTP Template<\/strong>‘, the following pop-up box will show. Enter mobile number and then select ‘Send OTP’<\/strong>.<\/p>\n

\"number<\/a><\/p>\n

 <\/p>\n

8. The following screen will appear.<\/p>\n

\"\"<\/a><\/p>\n

 <\/p>\n

9. As you can see in the image below, your message has been sent successfully and the following details will appear.<\/p>\n

\"Smart<\/a><\/p>\n

Note: If you are using SMS as your primary channel, price as per your DLT Bulk SMS plan will be deducted. Else, if you are using Whatsapp as your primary channel, price of INR 0.25 paisa will be deducted.<\/em><\/strong><\/p>\n

In the case of WhatsApp, if a message fails to deliver, the corresponding charge will be refunded as per the applicable policy. However, for SMS sent through DLT, charges are deducted on a submission basis and are not refundable.<\/strong><\/em><\/p>\n

 <\/p>\n

 <\/p>\n

 <\/p>\n

We hope you now have a clear understanding of our Smart OTP feature<\/strong> and how it helps ensure reliable OTP delivery through intelligent fallback channels. Leverage Multi channel OTP<\/strong> in your business campaigns to minimise undelivered messages and provide a seamless verification experience for your customers. Sign up with Fast2SMS<\/strong> today and start using Smart OTP instantly. For more details, call or whatsapp us at 6262778822<\/a>! Visit fast2sms.com<\/a> today!<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Have you ever wished to send Fast2SMS OTP messages through a priority route to ensure faster and more reliable delivery? Introducing our new Multi Channel Smart OTP feature, designed to help businesses send OTP messages on priority so that not a single verification message is missed. With Smart OTP, you can enhance authentication success rates […]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"","_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","footnotes":""},"categories":[5],"tags":[],"yoast_head":"\nSmart OTP: Send Multi Channel OTP SMS from Fast2SMS<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.fast2sms.com\/help\/send-multi-channel-otp-sms-from-fast2sms\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Smart OTP: Send Multi Channel OTP SMS from Fast2SMS\" \/>\n<meta property=\"og:description\" content=\"Have you ever wished to send Fast2SMS OTP messages through a priority route to ensure faster and more reliable delivery? 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