Google Calendar Connection

Connect to Google Calendar to manage events from your workflows.

Configuration

Field	Description	Required
Client ID	Your Google OAuth 2.0 Client ID	Yes
Client Secret	Your Google OAuth 2.0 Client Secret	Yes
Refresh Token	A long-lived refresh token for offline access	Yes

Setting Up Google OAuth Credentials

The setup process is the same as for Google Sheets and Google Drive. If you already have credentials for either, you can reuse the same Client ID and Client Secret — but you will need a refresh token that includes the Google Calendar scope.

Step 1: Create a Google Cloud Project

1. Go to the Google Cloud Console
2. Create a new project (or select an existing one)
3. Navigate to APIs & Services > Library
4. Search for and enable the Google Calendar API

Step 2: Create OAuth 2.0 Credentials

1. Go to APIs & Services > Credentials
2. Click Create Credentials > OAuth client ID
3. If prompted, configure the OAuth consent screen first:
   • Choose External for testing or Internal for Google Workspace
   • Fill in the required fields (app name, user support email, developer email)
   • Under Test users, add the Google account email you will use to authorize — without this, you will get a 403 "access_denied" error during authorization
4. Select Web application as the application type
5. Add https://developers.google.com/oauthplayground as an authorized redirect URI
6. Copy the Client ID and Client Secret

Step 3: Obtain a Refresh Token

1. Go to the OAuth 2.0 Playground
2. Click the gear icon (settings) in the top right
3. Check Use your own OAuth credentials
4. Enter your Client ID and Client Secret
5. In the left panel, find Google Calendar API v3 and select https://www.googleapis.com/auth/calendar
6. Click Authorize APIs and sign in with your Google account
7. Click Exchange authorization code for tokens
8. Copy the Refresh Token

Reusing credentials with Google Drive and Sheets

If you want one set of credentials for all Google services, select all scopes at once in Step 5 (Calendar, Drive, and Sheets), then use the same refresh token across all three connections.

Step 4: Create the Connection

1. In the workflow automation platform, go to Connections
2. Click Add Connection
3. Select Google Calendar as the type
4. Enter your Client ID, Client Secret, and Refresh Token
5. Click Test Connection to verify

Scopes

Scope	Description
https://www.googleapis.com/auth/calendar	Full access to Google Calendar (read, create, update, delete events)
https://www.googleapis.com/auth/calendar.readonly	Read-only access to calendars and events

WARNING

Refresh tokens can expire if the OAuth consent screen is in "Testing" mode and the token has not been used for 7 days. To avoid this, either publish your OAuth app or use a Google Workspace account with the consent screen set to "Internal".

Usage

Once created, this connection becomes available in:

• Google Calendar List Events — list events from a calendar
• Google Calendar Create Event — create new events
• Google Calendar Update Event — update existing events
• Google Calendar Delete Event — delete events