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Notify on no-show

Send a Slack DM to the meeting organizer whenever their booking is marked no-show. Great for nudging auto-booked meetings nobody showed up to. For admins and office managers who want to reduce empty rooms.

What this workflow does

When a booking in Neowit transitions to the "no-show" state, this workflow:

  1. Checks whether the meeting was auto-booked (you may want to skip human-scheduled meetings).
  2. If yes, sends the organizer a short Slack DM letting them know.

It's a clean template for any "notify someone when an event happens" pattern.

[SCREENSHOT] The finished workflow on the canvas: trigger "Booking No-Show" → If node (isAutoBooked == true) → Send Slack DM. The If node's false port is unconnected.

Prerequisites

Build it

1. Create the workflow

Workflows → New workflow → name No-show notifier → Create.

2. Add the trigger

Drag Booking — no-show onto the canvas. No settings to configure.

3. Add a filter

Drag If onto the canvas. In its settings, add one condition:

  • Value 1: trigger.event.isAutoBooked
  • Operation: boolean is equal to
  • Value 2: true

Combine operation stays on all.

Drag an edge from the trigger's output to the If node's input.

4. Add the Slack action

Drag Slack → Send DM onto the canvas. Settings:

  • Email — trigger.event.organizer.email (use the data-reference picker).
  • Content type — text.
  • Content —

Hi! Your meeting "{{ trigger.event.subject }}" in
{{ trigger.event.space.name }} was marked no-show. If you no longer
need the slot, please release the booking so others can use the room.

Drag an edge from the If node's true port into the Send DM node.

5. Test

Click Run workflow in the toolbar. In the trigger's input dialog, paste:

{
  "event": {
    "id": "test-1",
    "subject": "Weekly sync",
    "isAutoBooked": true,
    "organizer": { "email": "you@example.com" },
    "space": { "id": "room-3", "name": "Sky room" }
  }
}

Click Run. All three node cards should turn green and a Slack DM should arrive within a few seconds.

[SCREENSHOT] Test panel after a successful run: three node cards stacked vertically, all green, with a duration on each.

6. Enable it for real

Click Save. In the dialog, turn Enabled on, add a short commit message, and save. From the next real no-show event onwards, the workflow runs automatically. See Publishing and versions for the full Save flow.

Variations

  • Swap the condition to filter by space, floor, or organizer email domain — see Conditions.
  • Fan out a second action from the trigger (e.g. also turn the room's Hue scene red for 10 seconds) by drawing another edge from the If node's true port.
  • Send a channel message instead of a DM using Slack → Send to channel.

When it doesn't fire

If you mark a real booking as no-show and nothing happens:

  1. Check the workflow is committed, not just saved as a draft. See Publishing and versions.
  2. Check the Executions tab on any node — is the workflow running but routing to the false branch? Your condition may be stricter than you think.
  3. See Workflow didn't run for more diagnostics.

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