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# How do I resolve the “Business Phone Number Deleted” error when I send messages to customers in Zoho Books?

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This error occurs when the phone number associated with your WhatsApp Business account has been deleted in the Meta Business Suite. To resolve this:

*   Add a new phone number to your WhatsApp Business account in the Meta Business Suite.
*   Then, [update the WhatsApp Business account](/books/help/integrations/whatsapp-integration.html#Change-Default-WhatsApp-Number) in your Zoho Books organization with the new phone number.

You can then send WhatsApp messages to your customers without any interruptions.