Viber for Business:
High-Impact Rich Media Campaigns In-App

Engage customers with rich, interactive messaging at a significantly lower cost than SMS using Viber for Business. With the MessageFlow Viber API, you can seamlessly integrate your systems with Europe’s leading OTT messaging platform and deliver rich media campaigns at scale.


1.2 BLN

active Viber users

90%

market coverage across Europe

60%

average open rate

79.000 active customers

Engage users at scale with Viber Business Messaging

MessageFlow is a multichannel communication platform built for high-performance Viber campaigns at scale. Run mass messaging campaigns within a secure, consistent ecosystem powered by a robust Viber API – designed for high volumes and reliable message delivery.


Reach customers where they are active every day. With Viber’s strong presence across Europe, you can deliver interactive, multimedia messages that capture attention, drive engagement, and shorten the path to conversion – at a significantly lower cost than SMS.

Rich media campaigns

Showcase your offer using Viber Business Messaging formats aligned with your goals and audience behavior. Send simple text messages, images, text with call-to-action buttons, or advanced rich media that combines visuals, copy, and CTAs in a single experience.

Messaging you can trust

Strengthen brand credibility and reduce fraud risk. With MessageFlow, Viber promotional messages are sent from an official business account displaying your brand name, logo, and verification badge.

Cost-effective messaging at scale

Viber for Business on MessageFlow uses a transparent hybrid pricing model – a fixed fee for an active channel plus a low per-message rate for messages actually delivered. Pricing starts from €0.055 in CEE markets, making it a practical choice for high-volume campaigns.

International reach

Viber is widely used in Ukraine, Bulgaria, and Serbia. With Viber promotional messages, you can reach these audiences more efficiently than with international SMS – while delivering richer, more engaging content.

Manage all Viber Business messaging from a single, centralized environment. MessageFlow provides a clear operational view of what was sent, when, and to whom – including previews of message content and images. This results in cleaner communication, faster issue resolution, and less day-to-day dependency on IT for business teams.

Visual log verification

See more than delivery status. Message logs include a visual preview of each message, allowing Support teams to quickly confirm what the customer received – without developer involvement.

Network traffic optimization

Send up to 200 messages in a single Viber API call. Designed for high-volume traffic, MessageFlow minimizes API requests and reduces infrastructure load.

Precise status webhooks

Get real-time delivery and read events with exact open timestamps. Built-in retries, backup URLs, and Basic Auth support reliable, automated workflows.

Easy integration

Connect via a simple JSON-based REST API with code examples for Node.js, PHP, Python, Go, Java, C#, and Ruby. Go live quickly, without unnecessary complexity.

Get up and running in minutes with
a developer-friendly Viber API

Accelerate implementation with practical developer tools. MessageFlow offers ready-to-use libraries and code samples for the most common technologies, so you can send your first Viber promotional message without complex setup or configuration.

Ready-to-use code snippets

Access prebuilt Viber API requests for Python, PHP, Node.js, Java, Go, and C#. A single interactive code block lets you switch languages instantly and adapt the integration to your stack.

Clear, well-structured documentation

Every message parameter – from text and images to buttons – is clearly documented with data types and examples. You know exactly what you’re sending and how to extend your Viber business messaging safely.

Fast onboarding

Authenticate using a simple API key in the request header. Send your first test Viber message in minutes and complete the full integration without additional dependencies.

                        
import requests

url = "https://api.messageflow.com/v2.1/viber"

payload = {
"receivers": ["48111222333", "48111222444"],
"senderName": "MyCompany",
"externalId": "campaign_20250902_123",
"content": {
"text": "Hello! Check out our latest offer.",
"image": "https://example.com/image.jpg",
"action": {
"title": "Learn More",
"targetUrl": "https://example.com/offer"
}
}
}
headers = {
"Content-Type": "application/json",
"Accept": "application/json",
"Authorization": "123",
"Application-Key": "123"
}

response = requests.post(url, json=payload, headers=headers)

print(response.json())
                        
const url = 'https://api.messageflow.com/v2.1/viber';
const options = {
method: 'POST',
headers: {
'Content-Type': 'application/json',
Accept: 'application/json',
Authorization: '123',
'Application-Key': '123'
},
body: '{"receivers":["48111222333","48111222444"],"senderName":"MyCompany","externalId":"campaign_20250902_123","content":{"text":"Hello! Check out our latest offer.","image":"https://example.com/image.jpg","action":{"title":"Learn More","targetUrl":"https://example.com/offer"}}}'
};

try {
const response = await fetch(url, options);
const data = await response.json();
console.log(data);
} catch (error) {
console.error(error);
}
                        
const request = require('request');

const options = {
method: 'POST',
url: 'https://api.messageflow.com/v2.1/viber',
headers: {
'Content-Type': 'application/json',
Accept: 'application/json',
Authorization: '123',
'Application-Key': '123'
},
body: {
receivers: ['48111222333', '48111222444'],
senderName: 'MyCompany',
externalId: 'campaign_20250902_123',
content: {
text: 'Hello! Check out our latest offer.',
image: 'https://example.com/image.jpg',
action: {title: 'Learn More', targetUrl: 'https://example.com/offer'}
}
},
json: true
};

request(options, function (error, response, body) {
if (error) throw new Error(error);

console.log(body);
});
                        
<?php

$curl = curl_init();

curl_setopt_array($curl, [
CURLOPT_URL => "https://api.messageflow.com/v2.1/viber",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
'receivers' => [
'48111222333',
'48111222444'
],
'senderName' => 'MyCompany',
'externalId' => 'campaign_20250902_123',
'content' => [
'text' => 'Hello! Check out our latest offer.',
'image' => 'https://example.com/image.jpg',
'action' => [
'title' => 'Learn More',
'targetUrl' => 'https://example.com/offer'
]
]
]),
CURLOPT_HTTPHEADER => [
"Accept: application/json",
"Application-Key: 123",
"Authorization: 123",
"Content-Type: application/json"
],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}
                        
HttpRequest request = HttpRequest.newBuilder()
.uri(URI.create("https://api.messageflow.com/v2.1/viber"))
.header("Content-Type", "application/json")
.header("Accept", "application/json")
.header("Authorization", "123")
.header("Application-Key", "123")
.method("POST", HttpRequest.BodyPublishers.ofString("{\n \"receivers\": [\n \"48111222333\",\n \"48111222444\"\n ],\n \"senderName\": \"MyCompany\",\n \"externalId\": \"campaign_20250902_123\",\n \"content\": {\n \"text\": \"Hello! Check out our latest offer.\",\n \"image\": \"https://example.com/image.jpg\",\n \"action\": {\n \"title\": \"Learn More\",\n \"targetUrl\": \"https://example.com/offer\"\n }\n }\n}"))
.build();
HttpResponse<String> response = HttpClient.newHttpClient().send(request, HttpResponse.BodyHandlers.ofString());
System.out.println(response.body());

Viber business messaging tailored to your scale and industry

Build stronger customer relationships with Viber campaigns for business designed for real engagement. Send multimedia marketing messages, interactive transactional notifications, and personalized customer support in a channel used by over one billion users worldwide.

Viber API for eCommerce

Go beyond plain text – enrich your customer communication with visual Viber Business messages. Recover abandoned carts with product images and a “Complete your purchase” button, drive repeat visits, and increase conversions without relying on discounts.

Viber API for Logistics

Reduce pressure on your support team. Send shipment status notifications at scale with a “Track shipment” button, allowing customers to check delivery details directly in Viber.

Viber API for Finance

Lower the cost of international communication. Reach customers in markets such as Ukraine, Bulgaria, and Serbia through a trusted, widely used channel – at a significantly lower cost than SMS.

How MessageFlow supports Viber Business campaigns

MessageFlow combines enterprise-grade scale and security with SaaS flexibility. We act as a technology partner, supporting you from Viber Business account setup and integration through to ongoing campaign optimization.

Secure, trustworthy messaging

Operate within a security-by-design framework and stay compliant with Viber for Business policies. MessageFlow uses the official Viber integration, providing verified sender profiles, channel-level encryption, and secure API connections.

Real-time performance monitoring

Track delivery, opens, and user interactions in real time. Full visibility into Viber business messaging performance enables faster issue resolution and continuous optimization.

Automation and scalable communication

Connect Viber with your CRM, e-commerce, and backend systems to automate notifications and personalize content at scale – without increasing operational complexity.

Full control over cost and scale

Use a stable infrastructure and flexible Viber API to combine Viber with SMS as a fallback when needed. You control delivery logic, campaign scale, and messaging budgets.

GDPR compliance and communication security

Run transparent communication that meets GDPR and local regulatory requirements. Your customer data stays in your CRM, while messages are delivered through a secure, compliant environment.

Strengthen your Viber messaging with cross-channel communication

MessageFlow lets you combine Viber business messaging with SMS, email, RCS, and mobile push in a single communication strategy – without building and maintaining separate integrations. Together with our experts, you can design a consistent, personalized channel mix that adapts to user behavior and supports sustainable business growth.

Reduce missed emails with intelligent follow-ups. If a user doesn’t open or click an email, MessageFlow can automatically trigger a Viber message after a defined time, significantly improving engagement rates.

Explore E-mail

Use Viber as the primary channel when rich content and interaction matter. Keep SMS as a complementary or fallback option to ensure reach for users who are not active on Viber.

Explore SMS

Engage OTT users via Viber and reach others through the native Messages app with RCS. MessageFlow provides the APIs and event data needed to manage channel selection logic on your terms.

Explore RCS

Send email, SMS, Viber, and RCS messages from a single platform. Centralized event tracking and delivery statuses in one dashboard simplify analysis, reduce tool sprawl, and enable faster, more relevant responses to customer actions.

Why do brands choose MessageFlow?

We use the platform to send SMS and Mobile Push notifications both domestically and internationally with Support always on standby.

Vice President of the Board

The communication platform provides us with comprehensive SMS communication services at a very high level. Thanks to the individual approach to our needs, we were able to use ready-made solutions, as well as tailor-made solutions, which is a great help in the case of such a large organization as ours.

Director Of The Finance and Customer Service Department

The Email and SMS communication infrastructure delivers outstanding overall performance, perfectly meeting our extensive marketing campaign needs.

Marketing Coordinator

Would you like to talk about Viber API?

Schedule a free consultation and see how Viber API communication and a cross-channel strategy can support your business goals.

FAQ: Viber campaigns for businesses

Here are some of the most frequently asked questions answered by our experts.

Viber is a widely used OTT messaging app that businesses use for marketing, transactional, and customer service communication. In a business context, Viber functions as a rich media channel, enabling brands to go beyond plain text with images, CTA buttons, and longer-form content – capabilities not available with SMS.

Viber for Business (Viber Business Messages) is the official solution that allows brands to message customers from a verified sender profile. It supports promotional campaigns, transactional notifications, and two-way communication within a single, trusted channel.

Yes. Viber provides channel-level encryption and strict verification of business senders.
MessageFlow uses only the official Viber for Business integration and adds additional safeguards, including:

  • a verified sender profile (Blue Tick)
  • secure HTTPS connections with API key authentication
  • Basic Auth support for webhooks

This protects brand reputation and reduces the risk of phishing or message spoofing.

Yes. Marketing communication via Viber requires prior user consent.

If a recipient blocks a business account in the Viber app, MessageFlow sends an unsubscribe event via webhook. This allows you to update consent status in real time in your CRM or CDP and stay compliant with GDPR and local regulations.

Viber supports a wide range of business messaging use cases, including:

  • marketing and promotional campaigns
  • transactional and status notifications
  • booking and payment reminders
  • messages with images, buttons, and CTAs.

Viber also supports Rich Media Messages, such as:

  • text messages (up to 1,000 characters)
  • image-only messages
  • messages with CTA buttons
  • full creatives combining text, image, and CTA.

Viber works well as a supporting customer service channel, particularly for notifications, status updates, and post-purchase communication. With MessageFlow’s API integration, messages can be enriched with data from internal systems, ensuring consistent and contextual customer interactions.

MessageFlow provides a JSON-based REST API built for developers and high-volume messaging. Key capabilities include:

  • mass messaging with batching up to 200 recipients per request
  • real-time delivery and read statuses via webhooks
  • precise message open timestamps
  • retry mechanisms and backup webhook URLs
  • searchable message logs using your own External ID

MessageFlow also offers Visual Audit Logs, allowing you to see not only message statuses but also the exact content and images sent.

Viber pricing in MessageFlow follows a transparent hybrid model:

  • a fixed fee for an active channel (Sender ID)
  • a low per-message fee for delivered messages – starting at approximately €0.055 in CEE markets

In countries such as Ukraine, Bulgaria, and Serbia, Viber is a primary communication channel, making it a more cost-effective and efficient alternative to international SMS.

Yes. Viber can be integrated with CRM systems such as Salesforce through MessageFlow.

Using MessageFlow’s APIs and webhooks, you can connect Viber messaging with your CRM to trigger messages based on customer data and events, and to sync delivery and engagement statuses back into Salesforce. This enables use cases such as automated notifications, personalized campaigns, and follow-ups based on real customer behavior.

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