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  • To change the phone number connected to ChatSyncs, the old number has to be deleted first.
  • Then a new one gets connected from scratch.
  • A number can’t just be swapped in place.
Deleting a phone number also deletes its message templates, resets its messaging limit tier, and removes its contacts and chat history from ChatSyncs. This can’t be undone.

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Delete the phone number in WhatsApp Manager

1

Open your Business Portfolio's settings

In Meta Business Suite, click your business portfolio name in the top-left switcher, then click the gear icon next to it to open Settings — making sure the correct Meta Business Account is selected, the one linked to the WhatsApp Business Account you want to change.
Meta Business Suite business portfolio switcher open, showing the Bengalururent business portfolio with its settings gear icon highlighted
2

Open WhatsApp Manager

Under Accounts → WhatsApp accounts, select the account, then click WhatsApp Manager.
Meta Business Suite Settings, WhatsApp accounts list with one account selected showing its Account status and Payment method, and a highlighted WhatsApp Manager button
3

Delete the number

On the Phone numbers page, find the number in the list and click the trash can icon next to it to remove it.
WhatsApp Manager Phone numbers page with one number listed and its trash can delete icon highlighted

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Delete the associated WhatsApp Business Account

1

Open WhatsApp Business Accounts

In WhatsApp Manager, open the WhatsApp Business Accounts page.
2

Delete the account

Find the WhatsApp Business Account (WABA) linked to the number just removed, and delete it too.

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Remove the disconnected number from ChatSyncs

Go to Connect Account in ChatSyncs, find the now-disconnected number under Business Accounts, open its ⋮ menu, and click Delete phone number.
ChatSyncs Connect Account page, Business Accounts list with a phone number's overflow menu open showing Sync, Bot Reply, AI Assistant, Register number, Re-validate Token, Profile Settings, and Delete phone number highlighted in red

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Add a new phone number

Once the old number is fully removed on both Meta’s side and ChatSyncs’ side, follow How to Connect Your Number to ChatSyncs to connect the replacement number.

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Frequently asked

No — the old number has to be deleted from WhatsApp Manager and disconnected from ChatSyncs first, then the new number is connected as a fresh setup.
They’re deleted along with the number — templates, the messaging limit tier, and ChatSyncs contacts/chat history for that number are all removed and can’t be recovered.
Both. Deleting only the phone number from the Phone Numbers page leaves the WABA behind — remove the associated WhatsApp Business Account as well before reconnecting a new number.
No — see How to Migrate from WhatsApp App to a ChatSyncs Business Account instead. This guide is for removing a number already connected to the Cloud API.