E-Commerce

OTP Authentication for E-Commerce on WhatsApp

Delivers one-time passwords and login codes over WhatsApp for sign-ups, logins, and transaction verification. Built for online stores & D2C brands.

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Why e-commerce teams automate otp authentication

Online stores use WhatsApp to recover abandoned carts, confirm orders, and answer product questions on the channel customers already check daily.

Delivers one-time passwords and login codes over WhatsApp for sign-ups, logins, and transaction verification. Gives users a faster, higher-engagement alternative to SMS codes on a channel they already trust.

How it works

Trigger the code

Your app or store requests an OTP when a user signs up, logs in, or verifies a transaction.

Send via WhatsApp

Defuser delivers the code using an Authentication-category template to the user's verified number.

Verify and proceed

The user enters the code and your system confirms it, completing the secure action.

What e-commerce businesses gain

Automated cart-recovery sequences that reach buyers on WhatsApp instead of email
Self-serve order tracking and shipping updates that cut repetitive support tickets
A shoppable product catalog customers can browse and order inside the chat
A unified inbox where agents handle WhatsApp, Instagram, and Messenger together

Use cases

More E-Commerce automations

Abandoned Cart RecoveryOrder TrackingOrder ConfirmationProduct CatalogUpsell & Cross-SellRe-EngagementCOD ConfirmationOTP AuthenticationCustomer SupportFeedback CollectionBroadcast CampaignsNewsletter Subscriptions

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FAQ

Frequently Asked Questions

Is WhatsApp OTP more reliable than SMS?

Many businesses see better delivery and read rates on WhatsApp because messages arrive in an app users actively check. Authentication templates are purpose-built by Meta for sending codes.

How is OTP priced?

OTPs use WhatsApp's Authentication conversation category. Defuser's transparent calculator shows the per-conversation fee for each of 30+ countries so you can budget accurately.

We already send abandoned-cart emails — why add WhatsApp?

Email open rates keep falling and many reminders never get seen. WhatsApp messages are opened far more reliably and let the customer reply or pay with one tap, so the same abandoned cart gets a second, higher-visibility chance to convert.

Written by Tabarak Ur Rehman ChaudhryFounder & CEO, Defuser AI · View profile

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