Post to Slack when Cal.com booking is cancelled
2 ready-made Cal.com and Slack Applets
Turn one on, or build your own. Cal.com can start an automation with "Booking starting soon", and IFTTT can then run "Post to channel" on Slack.
Automate Cal.com and Slack from your AI assistant
Ask OpenClaw to create Cal.com applets for scheduling automation, right from your AI assistant, with IFTTT MCP.
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Create your own Cal.com and Slack workflow
Create custom workflows effortlessly by selecting triggers, queries, and actions. With IFTTT, it's simple: “If this” trigger happens, “then that” action follows. Streamline tasks and save time with automated workflows that work for you.
6 triggers, queries, and actions
Booking starting soon
Polling trigger
Polling Applets run after IFTTT reaches out to the trigger service and finds a new trigger event. These trigger checks occur every 5 minutes for Pro and Pro+ users, and every hour for Free users.
This trigger fires a chosen number of minutes before an upcoming Cal.com booking starts.
New booking
Polling trigger
Polling Applets run after IFTTT reaches out to the trigger service and finds a new trigger event. These trigger checks occur every 5 minutes for Pro and Pro+ users, and every hour for Free users.
This trigger fires when a new booking is created on your Cal.com account.
New cancelled booking
Polling trigger
Polling Applets run after IFTTT reaches out to the trigger service and finds a new trigger event. These trigger checks occur every 5 minutes for Pro and Pro+ users, and every hour for Free users.
This trigger fires when a booking on your Cal.com account is cancelled.
New rescheduled booking
Polling trigger
Polling Applets run after IFTTT reaches out to the trigger service and finds a new trigger event. These trigger checks occur every 5 minutes for Pro and Pro+ users, and every hour for Free users.
This trigger fires when a booking on your Cal.com account is rescheduled to a new time.
Create a booking
Action
An action is the task your Applet carries out after the trigger occurs. It defines what happens as the result of your automation and completes the workflow.
This action creates a new booking on a Cal.com event type.
Post to channel
Action
An action is the task your Applet carries out after the trigger occurs. It defines what happens as the result of your automation and completes the workflow.
This Action will post a message to the channel you choose in Slack.
Booking starting soon
Polling trigger
Polling Applets run after IFTTT reaches out to the trigger service and finds a new trigger event. These trigger checks occur every 5 minutes for Pro and Pro+ users, and every hour for Free users.
This trigger fires a chosen number of minutes before an upcoming Cal.com booking starts.
Create a booking
Action
An action is the task your Applet carries out after the trigger occurs. It defines what happens as the result of your automation and completes the workflow.
This action creates a new booking on a Cal.com event type.
New booking
Polling trigger
Polling Applets run after IFTTT reaches out to the trigger service and finds a new trigger event. These trigger checks occur every 5 minutes for Pro and Pro+ users, and every hour for Free users.
This trigger fires when a new booking is created on your Cal.com account.
New cancelled booking
Polling trigger
Polling Applets run after IFTTT reaches out to the trigger service and finds a new trigger event. These trigger checks occur every 5 minutes for Pro and Pro+ users, and every hour for Free users.
This trigger fires when a booking on your Cal.com account is cancelled.
New rescheduled booking
Polling trigger
Polling Applets run after IFTTT reaches out to the trigger service and finds a new trigger event. These trigger checks occur every 5 minutes for Pro and Pro+ users, and every hour for Free users.
This trigger fires when a booking on your Cal.com account is rescheduled to a new time.
Post to channel
Action
An action is the task your Applet carries out after the trigger occurs. It defines what happens as the result of your automation and completes the workflow.
This Action will post a message to the channel you choose in Slack.
Build an automation in seconds!
If
Select a trigger the automation will use
Booking starting soon
New booking
New cancelled booking
New rescheduled booking
Then
Select an action the automation will perform
Create a booking
Post to channel
You can add delays, queries, and more actions in the next step!
GET STARTED
How to connect to a Cal.com automation
Find an Applet using Cal.com and Slack
Find an automation to connect to, or create your own!Connect IFTTT to your accounts
Securely connect the Applet services to your respective accounts.Finalize and customize your Applet
Review trigger and action settings, and click connect. Simple as that!Upgrade your automations with
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