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Send a Slack alert when a Whereby user is waiting in the lobby

When a participant is waiting in the Whereby lobby, FlowMattic sends a Slack alert so a host can let them in quickly and no one is left waiting.

WherebyWhereby SlackSlack
~5 min setup used by 2.8k sites
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How it works

Every step, explained

Import the template and this whole chain runs on autopilot — here's exactly what happens on each run.

Whereby → Slack
2 steps
Whereby
TRIGGER
Whereby · User Waiting
The workflow starts automatically when a visitor knocks the meeting room from the waiting room in Whereby. FlowMattic captures that data for the steps below.
Slack
ACTION
Slack · Send Channel Message
Slack — post or Schedule a new message to a specific #channel. Data is mapped from earlier steps; connect your Slack account on import.
Why this workflow

Built to own, not to rent

No-code setup

Import the JSON, connect your accounts, and go live in minutes. Every step is pre-mapped — you only add your own credentials.

Runs on your server

Self-hosted on your WordPress install. No per-task fees, no data leaving your infrastructure, no monthly SaaS bill.

Fully customizable

Open it in the visual builder and reshape it — add branches, swap apps, insert filters. A starting point, not a cage.

Keep exploring

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