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WhatsApp Coexistence Guide 2026: Get WhatsApp API on Existing Number for Free
Admin November 25, 2025

WhatsApp Coexistence Guide 2026: Get WhatsApp API on Existing Number for Free

Learn how the WhatsApp Coexistence API update lets you use WhatsApp Business and WhatsApp API on the same number without deleting your account. Step-by-step guide, benefits, requirements & how to set it up using WhatsBoost.

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WhatsApp Coexistence Guide: Use WhatsApp API at No Cost

For years, applying for the WhatsApp Business API required a fresh mobile number — one that wasn’t already active on the WhatsApp Business app.
If a business wanted to activate WhatsApp API on their existing WhatsApp Business number, they had to delete their WhatsApp account entirely before applying.

This was a major pain point for thousands of brands.

But now… everything has changed.

With the new WhatsApp Coexistence API update, businesses can finally activate WhatsApp API on the same number they use on WhatsApp Business—without deleting anything.

This guide will explain:

  • What WhatsApp Coexistence is

  • Benefits of WhatsApp Business Coexistence

  • Requirements to use WhatsApp Coexistence

  • Step-by-step process to activate WhatsApp API on your existing number

  • How WhatsBoost enables coexistence and advanced automations

Let’s get started.


What is the WhatsApp Coexistence Update?

The WhatsApp Coexistence API is a new update by Meta that allows businesses to activate the WhatsApp Business API on their existing WhatsApp Business mobile number.

In simple words:

You can now use WhatsApp Business app and WhatsApp API on the same number—at the same time.

No deletion.
No losing chats.
No losing groups.
No migration headaches.

This update is a game-changer for businesses that always wanted to upgrade to WhatsApp API but couldn’t afford to lose their existing WhatsApp setup.

With WhatsBoost offering fully compliant WhatsApp API onboarding and automation workflows, businesses can now enjoy the full power of WhatsApp API while still using their regular WhatsApp Business app.


Why WhatsApp Coexistence Is a Revolutionary Update

## 1. Seamless Upgrade With Zero Disruption

Earlier, applying for WhatsApp API required businesses to:

  • Delete their WhatsApp Business account

  • Lose all chat history

  • Lose groups & communities

  • Start from scratch

Now you can keep:

  • All existing chats

  • All groups

  • All communities

  • All contacts

And still enjoy WhatsApp API automation through platforms like WhatsBoost.


## 2. WhatsApp Chat Sync Across Both Apps

When you activate the WhatsApp Coexistence API, your messages sync between:

  • WhatsApp Business app

  • WhatsBoost’s dashboard

This means:

  • Every chat you receive appears in both places

  • You can reply through either app

  • Your team can respond through WhatsBoost’s multi-agent panel

  • You still keep the convenience of the WhatsApp Business app

Perfect for businesses with high incoming message volume.


## 3. Advanced WhatsApp API Features on Your Existing Number

Using WhatsBoost’s WhatsApp API with coexistence, you get instant access to:

  • Unlimited broadcasting

  • Multi-agent dashboard

  • WhatsApp chatbot & AI workflows

  • CRM & automation integrations

  • Shopify integrations

  • Google Sheets workflows

  • N8N, Zapier & Make.com automations

  • Group messaging via API

  • Abandoned cart messaging

  • Follow-up message sequences

All on the same number that your customers already know.


## 4. Click-to-WhatsApp Ad Leads Sync to Your WhatsApp Business App

One of the strongest advantages of WhatsApp Business Coexistence:

Leads generated through your Click-to-WhatsApp ads show up instantly on your WhatsApp Business app.

So even if you are using WhatsBoost API for automations…

You still receive leads directly on your WhatsApp Business mobile app.

This ensures:

  • Faster lead response

  • Higher conversion rates

  • No need to check multiple dashboards


## 5. Activate WhatsApp API at Zero Cost

With coexistence, platforms like WhatsBoost allow businesses to activate WhatsApp API without subscription charges.

You pay only for:

  • Messaging template approvals (Meta standard)

  • Campaign/automation usage

  • Any ad credits you top up

There is no setup cost or monthly fee to activate the API.

This makes WhatsBoost one of the most cost-efficient WhatsApp API providers in India.

Internal Link suggestion:
👉 Learn more about WhatsBoost’s WhatsApp API features: https://whatsboost.in/


Benefits of WhatsApp Coexistence Using WhatsBoost

WhatsBoost takes the Coexistence API to a completely different level by providing:

### ✔ Full automation workflows

Use WhatsBoost + N8N + Google Sheets to automate:

  • Follow-ups

  • Lead nurturing

  • Abandoned cart

  • Subscription expiry reminders

  • Webinar registration follow-ups

  • Order updates

  • Payment reminders

### ✔ Multi-device, multi-team collaboration

Your team can:

  • Log in from multiple devices

  • Send replies through a shared inbox

  • Assign chats

  • Add internal notes

### ✔ Group messaging + API access

WhatsBoost is one of the few tools that allow:

  • API access to message WhatsApp groups

  • Extract group numbers

  • Send scheduled group announcements

### ✔ Shopify, Pabbly, Zapier & Make.com integrations

You can automate:

  • Cart recoveries

  • COD confirmations

  • Shipping updates

  • Order notifications

### ✔ No risk of number bans

WhatsBoost ensures:

  • Proper template usage

  • High-quality score maintenance

  • Smart throttling

  • Account protection strategies

This keeps your API number safe and compliant.


Requirements to Use WhatsApp Coexistence

The best part?

You only need one thing:

### ✔ An active WhatsApp Business account

As long as your number is already registered on the WhatsApp Business app, you can apply for the WhatsApp Coexistence API.

You do not need:

  • a new number

  • to uninstall WhatsApp

  • to delete your account

  • to reset your chat history


How to Get WhatsApp API Using WhatsApp Coexistence

The process is simple:

## Step 1 — Prepare Your WhatsApp Business Number

Ensure it is:

  • Active

  • Verified

  • Not banned

  • Running on WhatsApp Business app

## Step 2 — Apply for API Setup via WhatsBoost

WhatsBoost will:

  • Submit your number for WhatsApp API

  • Enable coexistence mode

  • Sync your chats automatically

  • Keep your WhatsApp Business app active

## Step 3 — Start using WhatsApp API instantly

Once activated, you can:

  • Send broadcast campaigns

  • Build workflows

  • Automate messages

  • Manage chats from both mobile & dashboard

⚠ Note

Coexistence is still a beta update from Meta.

If you want early access, WhatsBoost can help you onboard manually through its API partner ecosystem.

Internal Link to use:
👉 Apply for WhatsApp API via WhatsBoost here: https://whatsboost.in/


FAQs About WhatsApp Coexistence

1. What is WhatsApp Coexistence?

It is a Meta update allowing businesses to use WhatsApp Business app and WhatsApp Business API on the same number, without deleting their WhatsApp account.

2. Will my chats be deleted if I activate WhatsApp API on my existing number?

No. Your chats, contacts, groups, and communities remain safe.

3. Can I reply from both WhatsApp Business and WhatsApp API?

Yes. Chats sync across both platforms.

4. Is WhatsApp Coexistence free?

Yes, activating the WhatsApp API can be free depending on the provider. WhatsBoost offers zero-cost onboarding.

5. Is WhatsApp Coexistence safe?

Yes, it’s an official Meta update with full compliance and no risk when used correctly.


FAQs About WhatsBoost

1. What is WhatsBoost?

WhatsBoost is a WhatsApp automation & marketing platform offering API workflows, CRM integrations, group messaging, Shopify automation, N8N setups, AI voice agents, and more.

2. Does WhatsBoost support the WhatsApp Coexistence API?

Yes. WhatsBoost helps you activate WhatsApp API on your existing number using coexistence.

3. Does WhatsBoost charge monthly fees?

No mandatory monthly fee. You pay only for messaging usage or automation requirements.

4. Can WhatsBoost integrate with Shopify, Zapier, Make.com or Pabbly?

Yes. WhatsBoost integrates with 7000+ apps, including:

  • Shopify

  • Zapier

  • Make.com

  • Pabbly Connect

  • N8N

  • Google Sheets

5. Does WhatsBoost offer WhatsApp group messaging via API?

Yes. One of the unique features of WhatsBoost is WhatsApp Group Messaging API + Group number extraction.


Final Thoughts

The WhatsApp Coexistence API is one of the biggest updates WhatsApp Business has released in years. It finally removes the biggest barrier businesses faced—activating WhatsApp API without changing or deleting their existing number.

With WhatsBoost’s automation suite, multi-device inbox, integrations and compliance-first API infrastructure, businesses can now upgrade to WhatsApp API instantly, smoothly and at zero cost.

If you want to activate WhatsApp API on your existing WhatsApp Business number, WhatsBoost can help you enable coexistence safely.

👉 Start here: https://whatsboost.in/