WhatsApp Business
Send WhatsApp text and template messages from a live call, via Meta's own Cloud API.
The WhatsApp Business connector lets your voice agents send WhatsApp messages directly from a conversation, using Meta's own WhatsApp Business Cloud API — no third-party relay.
Connect it
WhatsApp Business uses an access token, not OAuth.
- Go to /connectors and click Connect on WhatsApp Business.
- Enter your Meta Access Token (a system-user token from your WhatsApp Business app) and your Phone Number ID, both found in Meta Business Manager.
- Click Connect.
Actions
WhatsApp only allows free-form text within the 24-hour window after a customer messages your business. Outside that window — appointment reminders, confirmations, proactive outreach — you must use a pre-approved template message instead.
| Action | Description | Parameters |
|---|---|---|
send_text_message | Send a free-form WhatsApp text message. Only works within the 24-hour customer-service window. | to_number (required, E.164), message_body (required) |
send_template_message | Send a pre-approved WhatsApp template message — the only way to message outside the 24-hour window. | to_number (required, E.164), template_name (required), template_params — comma-separated values filling the template's placeholders in order, language_code |
Templates must already be approved in Meta Business Manager before send_template_message can send them.
Attach these to a workflow node like any other tool — see Tools for how tool attachment and invocation work.
Example
An appointment-reminder agent calls send_template_message with an approved appointment_reminder template and the date/time as template parameters, since it's reaching out proactively rather than replying to a recent inbound message.