Business phone number
A business phone number, real or virtual, is used to send and receive WhatsApp messages.
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Source content checked . English translation published 2026-10-27.
In business automation
The business phone number is the resource used to send and receive messages. The API also uses a dedicated phone number ID, so distinguish it from the number customers see.
Examples
These examples illustrate a possible workflow. Adapt the connections and rules to your own systems.
Business workflow example
A business connects an additional service number. The workflow saves the number ID and routes incoming messages to the correct queue, so an inquiry to one branch is not handled by another branch by mistake.
Relevant tools
- WhatsApp Cloud API
- Managing messages through the platform uses phone number IDs and the appropriate permissions.
What to check
- Do not use a phone number where an API field requires a phone number ID. Also check the verification and transfer process for the number's status.