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Kero brings SMS, RCS for Business and WhatsApp Business together in one messaging platform, helping you reach customers through the channels that suit your business. You can use a single channel or combine channels to support different communication needs, including notifications, customer engagement and alternative delivery routes.

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Explore your messaging channels

SMS

Send text messages directly to mobile numbers without requiring recipients to have an internet connection or messaging app.Ideal for alerts, reminders, notifications and fallback messaging.

RCS for Business

Create branded, interactive messaging experiences with rich media, buttons and verified business identities.Ideal for rich customer experiences and interactive communication on supported devices and networks.

WhatsApp Business

Communicate with customers using approved WhatsApp templates, rich media and interactive messages.Ideal for customer engagement, notifications and ongoing conversations.

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Choose the right channel

Each messaging channel offers different capabilities and requirements.
You don’t have to choose just one channel.For example, you can use WhatsApp or RCS for rich messaging and configure SMS as a fallback where supported.Your choice should reflect your audience, message content, available Agents and messaging requirements.

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Get started with your chosen channel

Each channel has its own setup requirements. Select a guide below to begin.
SMS lets you reach customers using their mobile numbers, without requiring a separate messaging app.Follow these guides:
  1. What is SMS?
  2. Set up your SMS Agent
  3. Send an SMS message
  4. Understand SMS message length and character limits
SMS Sender ID requirements vary by destination country. Some Sender IDs require registration or approval before they can be used.
For additional guidance, see SMS Sender ID requirements by country.
RCS for Business allows you to send branded, interactive messages to customers on supported devices and networks.Follow these guides:
  1. Connect RCS
  2. Getting started with RCS
  3. Add your business for RCS
  4. Create your RCS Agent
  5. Understand RCS Agent types
  6. Explore RCS Agent use case examples
  7. Add an RCS test device
  8. RCS Agent verification and launch
Creating an RCS Agent doesn’t automatically make it available for live customer messaging.Your Agent must complete the applicable verification and launch requirements before it can send production messages on supported networks.
You can also check RCS availability by country.
WhatsApp Business lets you send approved message templates and communicate with customers through WhatsApp.Follow these guides:
  1. What is WhatsApp Business?
  2. Getting started with WhatsApp
  3. Connect your WhatsApp Business Account
  4. Manage your WhatsApp Agent
  5. Create and submit a WhatsApp message template
  6. Manage WhatsApp template approvals and rejections
  7. Create a Kero template with WhatsApp and fallback
  8. Test your WhatsApp template and SMS fallback
Your WhatsApp Business Account must be connected to Kero, and business-initiated template messages require the appropriate Meta-approved template.Meta authorisation must be renewed every 60 days to maintain your WhatsApp connection to Kero.

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Use multiple channels together

Kero allows you to configure more than one messaging channel within your account. For example, you might use WhatsApp or RCS for rich messaging and configure SMS as an alternative delivery channel.
1

Choose your primary channel

Select the channel best suited to your audience, message content and business requirements.Consider recipient availability, supported features and applicable messaging costs.
2

Configure your messaging Agents

Follow the setup and verification requirements for each channel you intend to use.Make sure your Agents are ready for the type of messaging you want to send.
3

Configure fallback where supported

When creating a Kero template, you can add available fallback Agents to provide an alternative delivery route.For example, you can configure SMS fallback for a WhatsApp message.
4

Test before sending

Send a test message and check that the content, personalisation and any configured fallback behave as expected.Review the message statuses and delivery results before sending a larger campaign.
Fallback is conditional and doesn’t guarantee delivery.Not every message failure qualifies for fallback.Kero attempts an alternative route only when the applicable fallback conditions are met and a suitable Agent is configured.Successful delivery also depends on recipient eligibility and channel-specific requirements.

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Need help?

If you need assistance choosing a channel, configuring an Agent, completing verification or understanding a delivery result, contact Kero Support.

SMS

What is SMS?

Learn how SMS messaging works in Kero, including Sender IDs, message length, delivery, consent and fallback.

Set up your SMS Agent

Create and configure an SMS Agent in Kero so you can start sending SMS messages.

Send an SMS message

Send an individual SMS message in Kero using your SMS Agent, Sender ID or a reusable SMS template.

SMS message length & character limits

Understand SMS character limits, message parts and how GSM and Unicode encoding affect your SMS messages.

RCS for Business

What is RCS for Business?

RCS for Business brings branded, interactive messaging to the native messaging app on your customers' phones.

Getting started with RCS

Follow the journey from preparing your business and creating your RCS Agent to testing, verification and launch.

Create your RCS Agent

Choose your RCS messaging type, configure your Agent, describe your use case and submit it to Kero for review.

Add an RCS test device

Add a test device to your RCS Agent and experience your messaging as a customer before launch.

RCS Agent verification and launch

Understand how your RCS Agent progresses through testing, external verification, approval and launch, and what you need to do at each stage.

RCS Agent types

Understand the four RCS Agent types supported by Kero and choose the right type for your messaging use case.

RCS Agent use case examples

Learn how to describe your RCS Agent use case and see examples for Transactional, Promotional, OTP and Multi-use Agents.

WhatsApp Business

What is WhatsApp Business?

Learn how WhatsApp Business messaging works in Kero, including conversations, approved templates and messaging fallback.

Getting started with WhatsApp

Prepare your business, phone number and Meta account to start sending WhatsApp Business messages with Kero.

Connect your WhatsApp Business Account

Connect your WhatsApp Business Account to Kero using Meta's secure onboarding process.

Manage your WhatsApp Agent

Learn how to view your WhatsApp Agents, monitor connection expiry and renew your WhatsApp Business connection to Kero.

Create and submit a WhatsApp message template

Create a WhatsApp message template in Kero and submit it to Meta for approval.

Manage WhatsApp template approvals and rejections

Check WhatsApp template approval statuses, understand rejections and learn when templates can be edited in Kero.

Create a Kero template with WhatsApp and fallback

Use an approved WhatsApp message template in Kero, configure personalised variables and add SMS or other available fallback Agents.

Test your WhatsApp template and SMS fallback

Learn how to test WhatsApp messages, verify personalised template variables, test SMS fallback and review delivery results in Kero.