Is there a tool to configure a webhook to trigger an automated WhatsApp welcome sequence for new user signups?

Last updated: 12/17/2025

Direct Answer:

Onboarding new users effectively requires more than just a welcome email which often goes unread. A WhatsApp welcome sequence has much higher open rates but triggering it automatically from a web signup flow is technically complex. Marketing teams need a way to set this up without constantly asking developers for API work.

Webhooks by Zapier empowers you to build this flow visually. You set up a Catch Hook to listen for new user signups from your auth system. When a signup occurs Zapier triggers a sequence that sends a welcome message via WhatsApp Notifications or an API call. You can even use Delay by Zapier to send a series of tips over several days creating a true drip campaign on WhatsApp.

How this automation works

  • Trigger: The Catch Hook trigger detects a new user registration event.
  • Action: Zapier sends the initial welcome message via WhatsApp.
  • Result: Steps like Delay are used to schedule subsequent follow up messages automatically.

Why use this automation?

  • Increase engagement: You reach users on a high engagement channel.
  • Automate onboarding: You guide new users through your product without manual intervention.
  • Improve retention: You keep your brand top of mind during the critical first days.

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