Google Calendar
Harvest
Slack

Google Calendar + Harvest + Slack integrations

Automate time tracking, meeting summaries, schedule-based timers, project kickoff alerts, and team status updates across Google Calendar, Harvest, and Slack.

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Popular automation
Trigger
Event is ended in Google Calendar
in Google Calendar
Instant
Actions
Create time entry with start and end time in Harvest
in Harvest
Send channel message in Slack
in Slack

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Ready Workflows Ready Workflows   for Google Calendar + Harvest + Slack integration

Track billable hours from finished meetings, start timers when events begin, notify your team in Slack, and manage project schedules, all in just one click.

Trigger
G
Event is ended in Google Calendar
in Google Calendar
Actions
H
Create time entry with start and end time in Harvest
in Harvest
S
Send channel message in Slack
in Slack
Trigger
G
Event is ended in Google Calendar
in Google Calendar
Actions
A
Generate meeting summary and extract billable project details
in AI
H
Create time entry with start and end time in Harvest
in Harvest
S
Send channel message in Slack
in Slack
Trigger
G
Event is about to start in Google Calendar
in Google Calendar
Actions
H
Create and start timer in Harvest
in Harvest
S
Set status in Slack
in Slack
Trigger
G
Event is created in Google Calendar
in Google Calendar
Actions
H
Create timesheet entry in Harvest
in Harvest
S
Send channel message in Slack
in Slack
Trigger
G
Event is created in Google Calendar
in Google Calendar
Actions
F
Continue only if event description contains billable project code
in Filter
H
Create timesheet entry in Harvest
in Harvest
S
Send direct message in Slack
in Slack
Trigger
G
Event matching search is created in Google Calendar
in Google Calendar
Actions
H
Create and start timer in Harvest
in Harvest
S
Send channel message in Slack
in Slack
Trigger
H
Project is added in Harvest
in Harvest
Actions
S
Create channel in Slack
in Slack
G
Create detailed event in Google Calendar
in Google Calendar
Trigger
H
Project is added in Harvest
in Harvest
Actions
A
Create project from template in Asana
in Asana
S
Create channel in Slack
in Slack
G
Create detailed event in Google Calendar
in Google Calendar
Trigger
H
Invoice is paid in Harvest
in Harvest
Actions
G
Create detailed event in Google Calendar
in Google Calendar
S
Send channel message in Slack
in Slack
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More ways to automate your
Google Calendar + Harvest + Slack workflow

Connect 1,500+ apps and get more done from your workflows.

Score high-intent leads
ChatGPT or Claude can read what each lead submitted, score the enquiry, and send the result into the next step. Your sales team can focus on the strongest leads instead of reviewing every submission manually.
Send it to accounts
When a sale reaches the end of this automation, create the matching invoice in Xero or QuickBooks. Your finance team gets the information without waiting for someone to export or re-enter it.
Alert the sales team
Send instant notifications via Microsoft Teams or Twilio SMS whenever a major project milestone or billing event occurs. Your team stays informed without needing to check dashboards constantly.
Create the next task
Automatically generate tasks in Asana, Trello, or ClickUp as soon as your calendar events or Harvest projects are initialized. Your project boards stay up to date without manual copying.
Store signed documents
Save client contracts and agreements directly into Google Drive or Dropbox when deals close. Every file is securely backed up and linked to the right project folder.
Follow up via email
Trigger personalized client follow-up sequences in Gmail or Mailchimp right after your discovery meetings end. You can nurture relationships instantly without missing a beat.

How the data usually flows between Google Calendar, Harvest and Slack

See how meeting updates and billable hours move smoothly between your calendar, time tracking, and team chat.

Google Calendar
Google Calendar
The moment a meeting or client workshop is scheduled on your calendar, the workflow detects the time block without any manual tracking.
Schedule
Harvest
Harvest
Timer events and timesheet entries are created automatically in Harvest based on your calendar schedule, keeping billable hours accurate.
Track
Slack
Slack
Summary messages and status changes are posted directly to your Slack channels, ensuring everyone knows when work starts and finishes.
Notify
Slack
Slack
Your team can act on logged hours and project alerts immediately. Nobody has to chase down timesheets or manually broadcast meeting updates.
Follow up
ai-icon
Fully Automated
Once set up, your data moves seamlessly
between Google Calendar, Harvest and Slack.
Google Calendar
Harvest
Slack
One continuous flow, Zero extra effort.
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Steps to connect Google Calendar, Harvest and Slack

  1. Log in to Integrately
  2. Search and select Google Calendar and Harvest
  3. Pick a ready 1-click automation or select the desired trigger-action pair
  4. Securely connect your Google Calendar & Harvest accounts
  5. Add Slack in the next steps of your workflow
  6. Map the fields across all three apps
  7. Test it, then switch it on Done
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Supported triggers and actions

A trigger is what starts the automation. An action is what it does next. Mix any of these across the three apps.

Google Calendar
Google Calendar Triggers & Actions
Event is created in Google Calendar
Triggers the automation when a new event is created
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Event is about to start in Google Calendar
Triggers the automation when any event is about to start
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Event is cancelled or deleted in Google Calendar
Triggers the automation when any event is cancelled or deleted
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Event is updated in Google Calendar
Triggers the automation when any event is updated
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Event matching search is created in Google Calendar
Triggers the automation when an event that matches a specified search criteria is created
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Event is ended in Google Calendar
Triggers the automation when any event comes to an end
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Create detailed event in Google Calendar
Adds a new detailed event to the calendar
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Update detailed event in Google Calendar
Updates a detailed event
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Search event in Google Calendar
Conduct a search for events based on particular criteria
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Delete event in Google Calendar
Removes a particular event from the calendar
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Get event by id in Google Calendar
Retrieves a event based on its id
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Search multiple events in Google Calendar
Searches for multiple events
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Quick add event in Google Calendar
Adds an event using the quick add feature
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Add attendee(s) to event in Google Calendar
Adds attendee/s to the particular event
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Update attendee(s) to event in Google Calendar
Updates attendee information for an event
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Create calendar in Google Calendar
Generates a new calendar with particular events and dates
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Harvest
Harvest Triggers & Actions
Expense is added in Harvest
Triggers the automation when a new expense is added
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Invoice is paid in Harvest
Triggers the automation when an invoice is marked as paid
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Timesheet entry is created in Harvest
Triggers the automation when there is a new timesheet entry
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Task is added in Harvest
Triggers the automation when a new task is added
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Project is added in Harvest
Triggers the automation when a new project is added
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Person is assigned to project in Harvest
Triggers the automation when a person is assigned to a project
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Invoice (with line items) is added in Harvest
Triggers the automation when a new invoice (with line items) is added
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Invoice is added in Harvest
Triggers the automation when a new invoice is added
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Client is added in Harvest
Triggers the automation when a new client is added
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Contact is added in Harvest
Triggers the automation when a new contact is added
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Person is added in Harvest
Triggers the automation when a new person is added
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Find task by ID in Harvest
Locates and retrieves a task by its unique identification number
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Find project by ID in Harvest
Retrieves a project by its unique identification number
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Find client by ID in Harvest
Locates a client based on their unique identification number
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Create time entry with start and end time in Harvest
Creates a new time entry with specified start and end times
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Create project in Harvest
Creates a new project
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Create timesheet entry in Harvest
Creates a new timesheet entry
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Create task in Harvest
Creates a new task
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Create client in Harvest
Generates a new client profile
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Create and start timer in Harvest
Creates and starts a timer for tracking time
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Create contact in Harvest
Adds a new contact to the database
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Slack
Slack Triggers & Actions
Message is posted on private channel in Slack
Triggers the automation when a message is posted on a private channel
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Group message is received in Slack
Triggers the automation when a group message is received
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Direct message is received in Slack
Triggers the automation when a direct message is received
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Reaction is added in Slack
Triggers the automation when someone reacts to any message
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Channel is created in Slack
Triggers the automation when a new channel is created
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Custom emoji is added in Slack
Triggers the automation when a custom emoji is added
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User is created in Slack
Triggers the automation when a new user is created
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File is created in Slack
Triggers the automation when a particular action in the workflow fails
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Get thread messages in Slack
Retrieves messages in a specific thread
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Search user in Slack
Searches for a user
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Send channel message in Slack
Sends a channel message
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Send direct message in Slack
Sends a private message to a recipient
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Send private channel message in Slack
Sends a private message to a channel
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Reply to channel message in Slack
Replies to a channel message
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Search message in Slack
Searches for a message
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Invite user to channel in Slack
Sends an invitation to a user to join a channel
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Search user by email in Slack
Retrieves user information based on their email address
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Update profile in Slack
Updates the user's profile
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Create channel in Slack
Creates a new channel
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Set channel topic in Slack
Sets the channel topic
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Get user by id in Slack
Retrieves user information using their id
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Set status in Slack
Sets the status
Try it →
Get Message Permalink in Slack
Retrieves the unique url link for a message within a conversation or chat
Try it →
Add reminder in Slack
Schedule and set reminder for a date and time
Try it →

Who this setup is for

Consulting firms and agencies
Consulting firms and agencies
Freelancers and contractors
Freelancers and contractors
Project managers
Project managers
Finance and operations leads
Finance and operations leads
📋 Consulting firms and agencies
You manage client workshops, billable hours, and team chat across separate tools. This setup logs finished meeting hours into Harvest and alerts your project channel in Slack automatically.
🎙️ Freelancers and contractors
You spend valuable time starting timers and updating timesheets manually after every client call. This automation tracks your time and updates your status without manual data entry.
🔁 Project managers
You need to ensure team members are aligned when new projects and client kickoff meetings are scheduled. This setup coordinates your calendar events and team channels instantly.
🗂️ Finance and operations leads
You track billable milestones, expenses, and invoices alongside team schedules. This integration ties your financial events to calendar tracking and team announcements effortlessly.
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Everything this automation handles for you

Everything this automation handles for you
No duplicate time entries
Match existing meeting IDs and project codes before logging time, so hours do not get recorded twice if workflows run again.
Auto-retry failed steps
If a step does not go through the first time due to a network glitch, the automation can retry it instead of leaving your timesheet half-finished.
Flexible filtering
Filter out non-billable calendar events using specific project codes or keywords so only relevant meetings reach Harvest.
Real-time synchronization
Trigger timers and send team notifications the exact second your meetings start or end, keeping your operations fully synchronized.

Why choose Integrately to automate Google Calendar + Harvest + Slack

Build and manage your Google Calendar + Harvest + Slack automations with ready-made flows, AI assistance, 24x5 reliable human support, and enterprise-grade security.

1,500+ apps connected
1,500+ apps connected
Connect Google Calendar + Harvest + Slack with email, CRM, messaging, finance, support, and other tools whenever your process needs another step.
20M+ Ready Automations
20M+ Ready Automations
Start with 20 million+ proven automation templates instead of building everything from scratch. Pick the closest flow, connect your accounts, and automate in minutes.
AI that builds your automations
AI that builds your automations
Describe your workflow in plain English. Integrately AI builds it, maps fields, adds conditions, and even lets you edit it through chat.
24x5 Live Chat Support
24x5 Live Chat Support
Chat with a real person and get reply within 2-5 minutes. No bots, no tickets, no waiting — just real help, right when you need it.
Free done-for-you setup
Free done-for-you setup
Tell our team what you need and we will help set up the automation in your account at no extra cost on any plan.
Secure by design
Secure by design
SOC 2 Type II and ISO 27001:2022 certified, with GDPR-compliant data practices. Your data and credentials are handled using recognised security and privacy standards.
Price Comparison with Popular Alternatives
Popular Alternative
😐
750 Tasks
in $19.99
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😍
2,000 Tasks
in $19.99
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Prefer to connect just two apps? Explore each combination separately

Google Calendar
Harvest
Google Calendar + Harvest
Turn your scheduled meetings and calendar events into accurate Harvest timesheet entries automatically.
Explore Integrations
Harvest
Slack
Harvest + Slack
Send project updates, invoice alerts, and team notifications directly into your Slack channels.
Explore Integrations
Google Calendar
Slack
Google Calendar + Slack
Manage your schedule and broadcast meeting reminders or status updates to your team in Slack.
Explore Integrations

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Questions people ask

Does Google Calendar automatically log billable hours in Harvest when meetings end?
Frequently Asked Questions
Yes, Integrately has a ready workflow to log completed Google Calendar meetings as time entries in Harvest. When a meeting ends, Integrately can create a time entry with start and end times in Harvest and notify your team in Slack.
Can I start a Harvest timer automatically when a Google Calendar event begins?
Frequently Asked Questions
Can creating a new project in Harvest automatically set up a Slack channel and calendar event?
Frequently Asked Questions
Can I notify my team in Slack when a Harvest invoice is paid?
Frequently Asked Questions
Can Slack message reactions log time in Harvest automatically?
Frequently Asked Questions
Do I need coding skills to connect Google Calendar, Harvest and Slack?
Frequently Asked Questions
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