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Messaging App Integration Guide: Viber, KakaoTalk & More

person Posted:  chandorya
calendar_month 13 Dec 2025
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Messaging ecosystems are now much broader than SMS, and businesses now have new avenues of reaching people across regions and demographics. Communication gateways such as Viber, Kakao Messenger, and Kakaotalk messaging apps have become a key communication tool that aids brands in the Asian market, Europe, and international markets. Since businesses are shifting to an omnichannel message, consistency of integration and verification processes is now a key demand of reliable operations.

This guide is located on the nature of Viber Messaging API integration, the distinctions between the Kakao Messenger and Kakaotalk Messaging App, and the importance of phone verification as a security concern. Examples of providers of scalable solutions to integrate these channels with business systems, including Salesforce, are 360 SMS App, Twilio, and Infobip.

1. Viber Messaging API Introduction and Reality Cases

Viber has also made it the favorite platform in international communication due to its text, image, button, rich media support, and branded messages. To establish integration with the Viber Messaging API, three steps are necessary:

  • Registration of Business Account: Organisations would have to establish a tested Viber business account that enables the organisation to gain access to API permissions to conduct transactional and promotional Viber SMS messages.
  • Credentialing of API Credentialing: Once API keys have been generated, the developers associate them with the CRM or server environment. The solutions, such as the 360 SMS App, make it easier by offering built-in Salesforce connectors.
  • Template Deployment and Message Forwarding: Viber needs message templates that have transactional workflows. These templates are subject to platform review in order to make sure they are compliant, and the content has uniformity.

When interconnected, the businesses can implement several use cases:

  • Delivery and order notification.
  • Service reminders
  • Rich media announcements
  • Two-way support messages

Viber SMS fallback in cases when the internet is not available.

Viber will be able to reach an expanded area in areas that rely on mobiles, like Eastern Europe, South Asia, and the Middle East.

2. Kakao Messenger vs. KakaoTalk Messaging App: What Businesses Need to Learn.

Most of the international teams suppose that Kakao Messenger and Kakaotalk Messaging App are the same, yet each provides different uses and message cases.

Kakao Messenger: The Kakao Messenger is utilized mostly with business-oriented communication frameworks such as targeted messages, advertisements, and service-related messages. It is deployed by brands in cases when they require structured delivery with regulatory controls.

Kakaotalk Messaging App: Kakaotalk is a social communication platform that is common in South Korea, and it helps in conversations, groups, and informal communication. Its business messaging department consists of:

  • KakaoTalk AlimTalk (years to be proven)
  • KakaoTalk FriendTalk (marketing communication)
  • KakaoTalk Notification templates.

Although both channels utilize the infrastructure of Kakao, the formatting of the message and the approvals of both channels vary. Several providers, such as 360 SMS App, provide integrations to companies that wish to centralize messaging in the Korean market within Salesforce or other CRM systems.

3. Why Verifying the Phones When Messaging is Still a Thing

Since businesses are now combining Viber SMS, Kakao Messenger, and other platforms, it is important to authenticate user identity. A large number of messaging ecosystems must have verified accounts to protect customers and prevent fraudulent activities. That is why phone validation remains one of the essential elements of onboarding.

Basic reasons why it cannot be forgotten about:

  • Eliminates counterfeit registrations by creating genuineness at the initial stage.
  • Secures the transactions by validating the owner of the number.
  • Minimises abuse of messaging services by checking identity prior to routing of a message.
  • Enhances the accuracy of deliverability because approved numbers eliminate unreachable contacts.

In global messaging applications, verification is used where the identity of customers is well verified before information that is sensitive is passed across.

4. Telephone Number Authentication Techniques in App Integration

Various platforms have various verification processes, and companies are supposed to be aware of which mechanism best suits their system:

  • OTP via SMS: The way it is verified is by sending a single-use password via SMS. This is also applicable to Viber SMS fallback.
  • Missed Call Verification: There are places where it can be verified by creating a missed call and automatically reading a caller ID.
  • Voice Call Verification: Delivery is in the form of a numeric code, which is sent using automated voice calls, thereby enhancing accessibility among those users who are not able to receive SMS.
  • In-App Verification Links: Messaging applications such as Viber or Kakao have built-in verification links to verify identity within the application.

These verification procedures with CRM-focused routing, tracking of phone numbers, and compliance verification are united by providers like 360 SMS App.

5. Unify Viber, KakaoTalk, and Verification Workflows

Multi-app integration means that it must be consistent, routing should be stable, and verification flows need to be reliable. In case your organization wants to work in various areas or integrate Viber Messaging API or KakaoTalk inside Salesforce, 360 SMS App may be used to implement these services with well-organized operations and integrated dashboards.

Integrate with the 360 SMS App and consolidate Viber, Kakao, and verification on Salesforce.

Ready to integrate Viber, KakaoTalk, and more into your messaging strategy? Connect with our experts today to get started. Call us in the United States (+1 323 641 4417), United Kingdom (+44 740 327 9473), Australia (+61 48885 3632), or India (+91 806 902 7849). You can also email us at [email protected] or fill out our contact form to begin your seamless messaging integration: https://360smsapp.com/contact-us/


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