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How to Integrate Applications

2025-05-20

[No Programming Required] How to Automatically Notify Slack with Google Calendar Data

m.i

"I missed another schedule change on Google Calendar..."
"It's a hassle to check my daily schedule on Google Calendar..."
Would you like to resolve these small frustrations?
Missing a schedule on Google Calendar can lead to double bookings or disrupt your work.

This time, we introduce an automation that notifies Slack of schedule deletions or creations on Google Calendar.
By implementing this automation, you can check your Google Calendar schedule on Slack, reducing the need to switch between systems.
This article will introduce how to notify Slack of Google Calendar schedule deletions and other automations you can use!
Take this opportunity to consider implementing automation!

For those who want to try it quickly

Yoom offers templates for integrating Google Calendar with Slack! If you want to try it right away, click the banner below to get started!

How to Automatically Notify Slack with Google Calendar Data

There are various ways to automatically notify Slack with Google Calendar data. Here are a few methods for you to check out!

Simply click "Try it out" on the automation example you're interested in and register an account to immediately experience automatic updates from Google Calendar.
Registration takes just 30 seconds, so feel free to give it a try!

Automatically Notify Slack with Google Calendar Data

You can automatically receive notifications when there are changes in your Google Calendar data.
This is recommended for those who want to avoid missing any appointments.

Automatically Notify Slack with Specific Data from Google Calendar

It notifies you of your schedule at a specified time every day.
Recommended for those who share their schedule with team members.

Automatically notify Slack with Google Calendar data triggered by changes in emails or reservation forms

You can automatically notify Slack of events created based on received content.
This reduces the double effort of creating and notifying.

Let's Create a Flow to Automatically Notify Slack with Google Calendar Data

Let's get started by creating a flow that automatically notifies Slack with data from Google Calendar!

We'll be using Yoom to proceed with the setup without any coding, so if you don't have a Yoom account yet, please create one from this registration form.

[What is Yoom]

This time, we will create a flow bot that notifies Slack when an event is deleted from Google Calendar!

The creation process is broadly divided into the following steps:

  • Connect Google Calendar and Slack to My Apps
  • Copy the template
  • Set the trigger for Google Calendar and the action for Slack
  • Set the trigger to ON and complete the preparation for flow operation

Step 1: Connect My App

Connecting your app first will make the subsequent settings proceed smoothly.
First, let's connect your Google Calendar with Yoom.
Select My App → "+ Add" from the left side of the Yoom page.

When the app menu list is displayed, search for Google Calendar.
Then, if there are no issues, click Continue on this screen.

※For reference, see What you can do by connecting with Google Calendar

Next, search for Slack.
Please sign in on the screen below.

Once the connection with Google Calendar and Slack is complete and displayed in My App, you're all set.

Step 2: Copy the Template

From here, we will create the flow. Open the template page and click 'Try it'.

As you proceed, the template will be automatically copied to your workspace, and the following screen will be displayed.

Select OK and proceed to the next step.
The template will be saved in My Projects.
You can change the template name if necessary.
Click on My Projects on the left to display the template you just copied.
Click on the ellipsis (...) on the right and select Edit.

Step 3: Set Google Calendar Trigger

Now, let's set up the app trigger.
Select "When an event is deleted".

You can change the title as you like.
Check the account information you just linked and proceed without changing the trigger action.
Enter the required fields.

This setting determines how many minutes after a Google Calendar event is deleted the trigger will activate.

  • Trigger Activation Interval: The selection of activation intervals varies depending on your plan.
  • Calendar ID: Select your Gmail address as shown in the image.

  • Type: Select your preferred option from the choices.
    If not set, all types will be targeted.

Set the search keyword as desired.
It will work even if not set.

Let's register a test event in Google Calendar and then delete it.

Return to Flowbot and test.
If linked correctly, the event information will be displayed in the output at the bottom of the screen.
By referencing this output during the subsequent action settings, you can achieve data integration between Google Calendar and Slack!
About Output | Yoom Help Center
Once you've done this, let's save it.

Step 4: Set to Send Message to Slack

Next, to set up notifications for events deleted in Google Calendar to Slack, click "Send message to the channel".

As before, check the linked account information and proceed to the next step.
Set the required fields.

  • Channel ID to Post: Select from the candidates as shown in the image.

Message: Select from the output.
※ Items selected from the output are displayed as shown in the red frame.
This indicates that the value is being referenced, allowing you to use the value obtained by the trigger as is.
Items obtained from the trigger must be selected from the output.

Once the settings are complete, test and save.
※ Please note that testing will send a notification to Slack.

Let's check Slack.

The notification was successfully sent.

Step 5: Turn ON the Trigger to Complete Startup Preparation

When the following image is displayed, turn ON the trigger. With this, all settings are complete, so let's check if a notification is sent to Slack when an event is deleted in Google Calendar.

This was the method for "notifying Slack when an event is deleted in Google Calendar".

Other Automation Examples Using Google Calendar and Slack

Besides the integration introduced this time, it is possible to automate various tasks using the APIs of Google Calendar and Slack.
If there is anything you are interested in, please try it out!

Convenient Automation Examples Using Google Calendar

You can notify Discord of Google Calendar event information or add it to Google Sheets.
It is possible to add events to Google Calendar based on Notion data.

Convenient Automation Examples Using Slack

You can notify Slack of lead additions in Salesforce or file additions in OneDrive.
After a Zoom meeting, AI can transcribe the minutes and notify you with summarized data.

Conclusion

By enabling notifications for Google Calendar event deletions or updates in Slack, you can prevent missing important schedule updates.
As introduced, integrating Google Calendar with Slack eliminates the need for manual notifications.
In particular, automating notifications of Google Calendar event deletions to Slack will make it easier to keep track of daily schedule changes.

If you are considering implementing this or want to try it out, please create a free account here. It only takes 30 seconds to register, so you can quickly sign up during your work!

By reducing the hassle of notifications, sharing information within the team becomes easier, potentially preventing double bookings.
Let automation handle your daily tasks and make your work easier!

The person who wrote this article
m.i
I have experienced finance-related work for about 3 years since I graduated as a new graduate. Due to the industry, there are so many tasks that are done manually, and I came across Yoom when I thought that if automated, I could do more other work. I'm impressed every day by the convenience of Yoom while writing a blog. I try to make the structure easy to understand.
Tags
Automation
Automatic
Integration
Notification
Google Calendar
Slack
App integration
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With “hyperautomation,” which combines various technologies such as AI, API, RPA, and OCR, it is possible to automate many tasks that could not be realized until now more easily than before.
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