Quick Summary
- Migrating a WhatsApp number to Cloud API normally requires deleting the existing WhatsApp account first.
- Your chat history is lost unless you use Business App Number Onboarding via a supported provider.
- Not every provider or region supports coexistence; if not supported, deletion is mandatory.
- After direct migration, the number can only be used with Cloud API, not with the WhatsApp Business App.
Migrating your current WhatsApp number to the WhatsApp Business Platform (Cloud API) lets you automate conversations, integrate CRM systems, run chatbots, and manage customer messaging at scale.
However, moving an existing WhatsApp Messenger or Business App number to the Cloud API has important conditions and irreversible effects.
This guide covers every approved migration method according to Meta’s official documentation and current platform rules.
Table of Contents
Important Things You Must Know Before Starting
Meta allows you to migrate a phone number currently used on:
- WhatsApp Messenger, or
- WhatsApp Business App
But the way you migrate, and whether you lose chat history, depends on how you choose to onboard.
There are now two official migration methods:
Migration Method 1: Delete the Existing Account (Direct Method)
When to use this method
Use this if:
Your number is onboarded and connected on Whataspp Business App
What happens with this method
You must delete the WhatsApp account tied to the phone number.
After deletion, the number becomes available for Cloud API setup.
All chat history is permanently lost.
After migrating, the number cannot be used in WhatsApp Messenger or the Business App unless you later deregister it from Cloud API.
Steps
1. Back up your chats (optional but recommended)
If you are using the Business App:
Android: Settings → Chats → Chat Backup
iPhone: Settings → Chats → Chat Backup → Back Up Now
Important: Backup cannot be restored after migration.
It is only useful if you return to the Business App later.
2. Delete the WhatsApp Account
Open WhatsApp (Messenger or Business App)
Go to Settings → Account
Tap Delete My Account
Confirm deletion
Meta states the number generally becomes available within ≈3 minutes.
3. Register the Number in Cloud API
follow the steps mentioned in document
How to Apply for WhatsApp Business API: A Step-by-Step Guide – Wetarseel AI
Your number is now officially in a WhatsApp Business Account (WABA) and connected to Cloud API.
Migration Method 2: Business App Number Onboarding (No Deletion Required Co-existence)
- Supported directly by Meta (2025–2026+)
- Available only via solution providers who support it
- Allows Business App + Cloud API to coexist
- Chat history is preserved
This method is newer and allows some businesses to keep using the WhatsApp Business App while also activating the Cloud API, without deleting the account.
Meta calls this:
This feature is sometimes referred to as “Coexistence”
When to use this method
Use this if:
You currently use the WhatsApp Business App, and
You want to keep your chat history, and
You work with a Meta-supported solution provider that explicitly supports Business App number onboarding.
Important: This method is not available directly through Cloud API.
It must be done through a provider whose platform like wetarseel.ai includes this onboarding flow.
What happens with this method
You do not delete your Business App account.
Your chat history is preserved inside the Business App.
Your number becomes available for use in the provider’s Cloud API connection.
You may continue using:
- The WhatsApp Business App, and
- The provider’s API-based platform
at the same time
This is the safest method for businesses who want continuity and do not want to lose conversations.
Choosing the Right Migration Method
| Your Current App | Want to Keep Chat History? | Provider With Coexistence? | Correct Method |
|---|---|---|---|
| WhatsApp Messenger | Not possible | Doesn’t matter | Delete Account → Migrate |
| WhatsApp Business App | Yes | Yes | Business App Number Onboarding- Coexistence |
| WhatsApp Business App | Yes | No | Not possible → Must delete account |
| WhatsApp Business App | No | Not needed | Delete Account → Migrate |
What You Cannot Do After Migrating
Once your number is registered with Cloud API (direct method):
- You cannot use WhatsApp Messenger with that number
- You cannot use the WhatsApp Business App with that number
- You cannot restore chat history
The Cloud API number becomes exclusive to Cloud API unless deregistered later.
What You Can Expect After Migration
Benefits
- API-based messaging
- Automation, chatbots, and CRM integrations
- Multi-agent inbox solutions
- High-volume template messaging
- Official WhatsApp Business features through API partners
Limitations
- Cloud API cannot function as a regular WhatsApp app
- Voice calls, status, stories, and similar consumer features are not supported
- The Business App cannot be used unless onboarding was done via the supported coexistence method
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