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WhatsApp Authentication / WhatsApp OTP with MSG91

WhatsApp Authentication / WhatsApp OTP with MSG91

WhatsApp Authentication Templates, commonly known as WhatsApp OTP (One-Time Password), offer a highly cost-effective solution for secure OTP delivery. Priced at nearly one-third the cost of other service and utility messaging categories, these templates are purpose-built for authentication, ensuring secure, fast, and reliable OTP transmission.

Key Advantages of WhatsApp OTP

  • ✅ High Delivery Rate: Outperforms traditional channels like SMS and email in terms of delivery success, ensuring timely and accurate OTP delivery.

  • 📱 Autofill Support: Seamless compatibility with both Android and iOS, allowing users to enjoy auto-fill functionality, which simplifies and speeds up the login or transaction process.

  • 💸 Cost-Efficient: A budget-friendly alternative, making it ideal for businesses aiming to reduce authentication costs without compromising on performance.

💡 For detailed pricing, explore the MSG91 Pricing Page.

Seamless Integration with WhatsApp API

MSG91 enables effortless integration with the WhatsApp Business API, allowing direct access to authentication templates. Whether you’re integrating into a mobile app, web platform, or internal system, the process is smooth, quick, and developer-friendly.

Enhanced Security & Flexibility with OTP Widget

The MSG91 OTP Widget is engineered to elevate your OTP delivery system with advanced features that prioritize security, flexibility, and user experience:

  • 🔒 IP Limitation
    Restrict OTP delivery to specific IP addresses, safeguarding against unauthorized access and potential misuse.

  • 🌍 Country-Specific Targeting
    Customize OTP delivery channels based on the recipient’s location—be it SMS, voice, or WhatsApp—ensuring optimized performance across geographies.

  • 🤖 Bot Protection
    Integrated protection against bot attacks ensures that your OTP system remains secure, reliable, and accessible only to genuine users.

These resources provide valuable insights and detailed guidelines to help you set up and optimize your WhatsApp authentication system, ensuring a smooth and secure user experience. Whether you are a small business or a large enterprise, MSG91’s WhatsApp Authentication Templates offer a scalable and effective solution for all your OTP needs.

NOTE: If sent without a country code, submission and deduction depend on the detected country based on the starting number: For, 91xxxxxxxxxx, etc

For more information on how to implement WhatsApp OTP and explore the various features offered by MSG91, you can visit the following links:


✅ How to Start WhatsApp Authentication Using MSG91

Step 1: Create an MSG91 Account

  • Go to MSG91 and sign up or log in to your account.

  • Complete KYC verification if required.

Step 2: Enable WhatsApp Services

  • Navigate to the WhatsApp section in the MSG91 dashboard.

  • Connect your WhatsApp Business Number and verify it through Facebook Business Manager.

Step 3: Set Up WhatsApp Template Messages

Step 4: Integrate the API

  • Use MSG91’s API to trigger WhatsApp messages.

  • Use the OTP API endpoint (or build custom logic) to send authentication codes.

Sample API Request (for WhatsApp OTP):

json

CopyEdit

{ "template_id": "your_template_id", "variables": ["123456"], "phone": "919876543210" }

Step 5: Handle OTP Verification

  • On your app/website, compare the user-entered OTP with the sent one.

  • Proceed only if the OTP is valid and within expiry time.

Optional: Use Flow or Visual Bot Builder

  • You can also create a Flow in MSG91’s bot builder to automate the OTP experience with buttons and replies.

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