The moment it happens

Post rescheduled meetings to Slack

When a meeting moves, Slack shows the old and new time side by side.

Runs: The moment it happens
Apps: Calendly
AI: Not needed
Access: PAT

Send this to your assistant

Create a ClickRuntime automation: when a Calendly meeting is rescheduled, post the invitee's name with the old and new times to #bookings in Slack.

Paste it into your assistant. It tells you what it will send or change before it runs live.

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First time? Adding ClickRuntime to your assistant takes about two minutes.

Why use it

Why teams use this automation

A Calendly booking that moves is easy to overlook, because the original slot disappears and a new one appears. The team member who prepared for Tuesday at 2 pm may not see that the call has moved to Thursday, or may see an unfamiliar new booking from the same person and not realize it is the same meeting. Confusion about whether a booking is new, moved or duplicated wastes time.

When an invitee reschedules, Calendly pushes the event to ClickRuntime. If the event is a reschedule, the workflow pairs the old booking with the new one using the new_invitee link and posts a single message to Slack showing the old time and the new time together.

It suits teams that share responsibility for meetings, where colleagues depend on the time being correct.

What you get out of it

The move is clear at a glance
One message shows both the old and the new time, so nobody has to compare calendar entries. The change is understood in a few seconds. Nobody needs to compare two calendar entries or ask a colleague whether the meeting changed.
No duplicate bookings are mistaken for new demand
Pairing the old and new bookings stops a reschedule being counted or treated as a fresh meeting. Reports of new meetings stay accurate. A clean feed keeps reports on new meetings from being inflated by moved ones.
Shared calendars stay accurate
Colleagues who track the meeting in their own calendars can update them promptly. Fewer people turn up at the wrong time. Hours of preparation are used well when the date is known early.
Preparation can shift in time
Someone who prepared for a Tuesday call can move that work to match the new date, or release the time. Effort is not lost to a meeting that has simply moved.
Frequent rescheduling becomes visible
If one invitee keeps moving their meeting, the channel shows the pattern. That may signal low commitment or a scheduling problem you can address directly. Direct conversation about timing can prevent a lost opportunity.

How it works

What happens, step by step

When an invitee moves a Calendly meeting to a new time, ClickRuntime hears about it straight away.
It matches the cancelled booking with the new one, so it knows both the old time and the new time.
It posts a line to your #sales Slack channel showing who moved which meeting, from when to when.

Before it runs live

Connect Calendly
Paste your automation's link into the other app's webhook settings

What you get

RunsThe moment it happens

Post rescheduled meetings to Slackjust nowSucceeded

Slack · #salesRescheduled: Riley Chen moved Product demo from 2026-10-20 15:00 to 2026-10-22 10:30 UTC

Build your own

Need it to work differently?

This template is a starting point. Copy the prompt and change it, or describe a different automation from scratch, with your own conditions, more apps or an AI step. Your assistant writes it, tests it and runs it on ClickRuntime.

Your own rules
Conditions, thresholds, filters and exceptions, written the way you'd explain them to a colleague.
Any number of apps
One automation can read from one app and update several others. Over 248 apps are ready, and anything with an API works too.
AI where it helps
Summaries, classification, extraction and drafts use ClickRuntime's built-in AI, with no extra key.
On a schedule or on each event
Runs as often as every 5 minutes, or the moment an app sends an event, and keeps track of what it already handled.

Changes you can ask for

Act only on the items that match your own rules, and skip the rest
Add an AI step, for example to summarize, sort or draft a reply
Add another app, for example also send it to Slack
Combine it with other Calendly steps into one automation

Under the hood

The code that runs this automation

This is the Python script that runs each time the automation starts. Your AI assistant writes it for you when you send the prompt, and you allow each step in your assistant. To change how the automation works, describe the change to your assistant and it updates the script for you. For every function it can use, see the script reference.

reschedule_alert.pyexample

from clickruntime import on_event, credentials, http, notify

@on_event
def handle(event):
    body = event.json or {}
    p = body.get("payload", {})
    if body.get("event") != "invitee.canceled" or not p.get("rescheduled"):
        return {"skipped": True}
    h = {"Authorization": f"Bearer {credentials.secret('CALENDLY_TOKEN')}"}
    new_inv = http.get(p["new_invitee"], headers=h).json()["resource"]
    new_ev = http.get(new_inv["event"], headers=h).json()["resource"]
    old = p["scheduled_event"]["start_time"][:16].replace("T", " ")
    new = new_ev["start_time"][:16].replace("T", " ")
    notify.slack(f"Rescheduled: {p['name']} moved {new_ev['name']} from {old} to {new} UTC", channel="#sales")
    return {"posted": True}

FAQ

Common questions

How does it match the old booking to the new one?

Calendly includes a new_invitee reference in the event for a rescheduled booking. The workflow follows it to find the replacement and then posts both times together. Without that link, the messages would look like two unrelated events.

Does it also post when a meeting is cancelled?

No. This workflow handles reschedules only, and it ignores other events. A separate cancellation alert exists for that purpose, and the two can run side by side without overlapping. The two workflows can run side by side.

Will a reschedule by the host be announced?

Calendly can send reschedule events when the host moves a meeting as well as when the invitee does. The message says what changed. If you want to include only invitee-initiated moves, ask your AI assistant to filter on that.

What permissions does it need?

PAT. Nothing else in your accounts is used.

Does it need AI?

No. It runs without AI, so it doesn't use your plan's AI allowance.

How many runs does it use?

One run for each event the app sends.

Can I change how it works?

Yes. Describe the change to your AI assistant, for example a different schedule, channel or filter. It updates the automation, tests it and tells you what changed.

The moment it happens