Send WhatsApp
Send WhatsApp messages via Twilio.
Overview
Send a WhatsApp message via Twilio. WhatsApp rides the same Twilio Messages API as SMS, so this reuses your existing Twilio credential — the node just adds the whatsapp: channel prefix for you. Most often it's the reply leg of a WhatsApp Trigger conversation, but you can also use it anywhere in a flow to send a notification.
Configuration
- Credential — select your Twilio credential
- To — recipient number in E.164 format. In a reply bot use
{{input.from}}(the number that messaged in). - From — your Twilio WhatsApp sender number (optional; defaults to the credential's number). Plain E.164 — the
whatsapp:prefix is added automatically. - Message Body — the text to send (supports
{{variables}}) - Media URL — optional public URL to an image/PDF to attach
Example (reply bot)
- To:
{{input.from}} - Message:
{{agent_result.response}}(Agent node) or{{ai_response.response}}(AI Prompt node)
The 24-hour window
Replying within 24 hours of the user's last message is free-form — no template required. Sending outside that window (proactive outreach) requires a pre-approved WhatsApp template and prior opt-in. Follow WhatsApp's Business Messaging Policy and your local marketing/privacy laws.
Common Use Cases
- Conversational replies — answer an inbound WhatsApp message from your AI agent
- Order & appointment updates — notify customers on the channel they already use
- Escalation alerts — message an on-call person when a workflow detects a critical condition