Verify customers on WhatsApp with Infobip’s OTP verification solution

Enable faster, trusted logins by verifying customers on WhatsApp. Send one-time passcodes in a familiar, encrypted chat from a verified WhatsApp business profile, backed by global compliance and Infobip’s omnichannel failover.

  • Faster, secure delivery in a channel customers use daily
  • Verified sender and end-to-end encryption build trust
  • Automatic SMS or Email fallback keeps verification flowing
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See WhatsApp API docs
A smartphone screen displaying an active WhatsApp business chat with "My Shop." The conversation shows a secure OTP message: "790711 is your verification code. For your security, do not share this code." The message includes a 10-minute expiration time and an "Autofill" button. Below the chat, options to manage messages from the business are shown: "Yes, please" or "No, thank you."

What is WhatsApp OTP and when should you use it?

WhatsApp OTP is a unique, temporary code sent to a user in a WhatsApp message, most often to verify identity during sign-up, login, password reset, or sensitive actions.

How WhatsApp OTPs work
1
The user requests an OTP by logging in to your app or website.
2
The system generates a secure, random code and sets an expiry window.
3
The system sends the code using an approved WhatsApp authentication template from your verified business account.
4
The user receives the code and enters it in your interface. The system validates the code, checking rate limits and expiry.
5
The system return a success or failure state, log the attempt, and optionally confirm in WhatsApp or in-app.

The benefits of WhatsApp OTPs

Delivering OTPs in WhatsApp speeds up authentication and increases trust because messages arrive on a familiar channel, in an encrypted chat from a verified business profile.

Single thread

All authentication messages appear in one WhatsApp chat for clarity and convenience.

Zero-taps

On supported devices, users can verify without manual input (e.g., OTP autofill on Android).

Native buttons

Users can interact with messages using WhatsApp’s built-in buttons for quick actions.

Branding

Send WhatsApp OTPs from your branded profile, with your official business name, image, and verified badge, building user trust and recognition.

Performance

Fast message delivery and response times, with higher read rates and CTRs than other channels.

Encryption

Messages travel encrypted end-to-end (only the sender and the recipient can read the message).

Time-to-live (TTL)

Lets you control how long a one-time password (OTP) sent by WhatsApp stays valid. Example: if you set the TTL to 3 minutes, the OTP will only work for 3 minutes. After that, WhatsApp will not try to send it again, and the code will not work anymore.

How our customers use WhatsApp OTPs

How to start sending WhatsApp OTPs with Infobip

You will need:

  • An Infobip account
  • A registered WhatsApp Business Platform sender
Explore our guide to getting started with WhatsApp
Diagram showing how a company connects WhatsApp Business Platform to its internal systems through Infobip. The top left shows three people using a smartphone. Lines link the WhatsApp Business Platform box to Infobip and the company’s business system, illustrating message flow and integration. 










	


	

	Integrate WhatsApp Business Platform API in an instant




	

	Start unlocking opportunities to scale communications and grow engagement with a flexible WhatsApp Business API supported by developers.




	
    
	
  • Access detailed API documentation
  • Get 24/7 integration support
  • Create custom message templates




	

	


	

	See WhatsApp API docs




	

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	Expand your tech stack with multiple integration options




	

	Easily implement the WhatsApp Business Platform into your existing tech stack and add on new integrations to build your B2C communication strategy.






	


	

	
						
		






	


	

	
						
		






	


	

	
						
		






	


	

	
						
		






	


	

	
						
		






	


	

	
						
		






	


	

	
						
		






	


	

	
						
		






	


	

	
						
		






	


	

	
						
		






	


	
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	Best practices for WhatsApp OTP implementation






	


	

	




	Obtain consent

	Always collect explicit user consent before sending WhatsApp authentication messages. This ensures users expect and trust the messages they receive.






	Check WhatsApp installation

	Using our verification APIs, you can automatically check if WhatsApp is installed on a user’s device and suggest it as the preferred OTP channel (available only on Android).






	Give users a choice

	Let users choose their preferred authentication channel (WhatsApp, SMS, email, etc.) for flexibility and better experience.






	Enable zero-taps

	Remove friction by enabling zero-tap verification where possible, so users don’t need to leave WhatsApp.










	

	


	


	

	Ensure the highest deliverability rates for verification messages at every touchpoint




	

	Wondering whether to use WhatsApp, SMS or email for sending OTPs? No need – automate sending OTPs on the best channel and only pay for what gets delivered.




	
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						Diagram showing various messaging channels, with WhatsApp highlighted as the primary channel for delivering a one-time password (OTP) from Global Logistics, including SMS, Voice, RCS, Viber, Zalo, Kakao Talk, and Telegram as alternatives.
		

									
												
						










	

	


	


	

	

		


	
						A close-up image of a notification on a smartphone screen. The notification is a WhatsApp message, indicated by the WhatsApp logo and the text "WHATSAPP" and "now" at the top of the message bubble (which has a light green background). The sender is "Bank Global." The message content is: "Your OTP is 45890. Please provide the OTP sent to (***) *** 1234." Below the text, there is a link that says "Slide to view." The phone screen is within a light blue border, all set against a dark green background.
		


									
												
						








	


	

	Cost and ROI of WhatsApp OTPs




	

	WhatsApp OTPs are sent as Authentication templated messages and are billed on a per‑message basis.




	

	Each delivered template is charged at Infobip’s WhatsApp price, which includes the Meta fee (parent company of WhatsApp). If you deliver multiple OTP templates in a flow or via retries, each one is billed separately.




	

	


	
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			Learn more about WhatsApp pricing
	


	








	

	


	


	

	Frequently asked questions about WhatsApp OTPs






	


	
	


	
	





	
	





	
	





	
	





	
	





	
	





	
	





	
	











	

	

	Start verifying users on WhatsApp

	Switch your authentication to WhatsApp for faster, trusted verification. Infobip helps you launch quickly with verified sender setup, approved templates, omnichannel failover, real-time analytics, and 24/7 support.

	

		
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