🗓 Preventive Maintenance Scheduler via ICS Email (n8n | Google Sheets | Gmail)
🗓 Preventive Maintenance Scheduler via ICS Email (n8n | Google Sheets | Gmail) This workflow automatically reads your daily preventive maintenance schedule from Google Sheets and sends each assigned team member a personalized calendar invite (.ICS) as an email attachment. No more manual reminders or copying events — your operations and field teams will always be on schedule with clear, actionable reminders! Who’s it For Maintenance teams at plants, renewable sites, factories. Facility and operations managers. Any field crew, service team or org using Google Sheets and email for coordination. Businesses wanting reliable, zero-touch preventive maintenance notifications. How it Works Daily Trigger: Workflow runs automatically every morning at 7:00 AM. Read Maintenance Tasks: Pulls all scheduled maintenance for today from Google Sheets. Generate ICS Data: Prepares universal calendar event details: summary, location, time, assignee, etc. Create ICS File: Converts event data into a standard .ics calendar invite file with correct timings and description. Send Calendar Invite Email: Sends a personalized email to each assignee, with the .ics file attached — ready to add to Outlook, Gmail or mobile calendar. How to Set Up Import the workflow JSON into your n8n instance. Set up connections in n8n: Authenticate Google Sheets (read access) and Gmail (send access). Format your Google Sheet with headers: date, asset, task, location, email Activate the workflow. It runs daily on schedule. You can test it manually for validation. Each day: Team members with tasks scheduled for that date are sent their personalized event invite. Requirements | Tool | Purpose | |-----------------|---------------------------------------| | n8n Instance | Run and schedule the automation | | Google Sheets | Source of maintenance schedule/tasks | | Gmail (or SMTP) | Email platform to send calendar files | How to Customize | Customization | How | |----------------------------------------|------------------------------------------------------------| | Change calendar invite/event wording | Edit title or description in the "Create ICS File" node | | Adjust event start/end times | Modify time logic in "Generate ICS Data" node | | Change daily send time | Tweak time in "Daily Trigger" node | | Use a different email provider (SMTP) | Swap Gmail node for SMTP node; link correct credentials | | Add extra notifications (SMS/Slack) | Add appropriate node after or before Send Email node | Add‑ons | Add-on | Description | |-------------------------|----------------------------------------------| | Recurring Tasks | Automate repeated tasks via your sheet/setup | | Email Logging | Log sent invites in another sheet/db | | WhatsApp/SMS Alerts | Add Twilio or WhatsApp for instant alerts | | Manager Summary | Send daily reports or dashboards to leads | | Pre-alerts | Add reminder emails 1hr / 1 day before event | Use Case Examples Wind turbine engineers receive daily calendar invites for inspections. Solar O&M operators are automatically reminded for inverter cleaning via calendar sync. Facility staff gets scheduled reminders for HVAC or safety checks without manual admin. Managers have a clear audit trail of which reminders were sent on time. Common Troubleshooting | Issue | Possible Cause | Solution | |-------------------------------------|---------------------------------------|-------------------------------------------------------| | No email received | Gmail/SMTP misconfigured | Check node credentials, token or SMTP settings | | Calendar file comes as .txt | Wrong file type/extension/MIME | Ensure "Create ICS File" outputs .ics and text/calendar | | No invites sent for today | No matching rows in Google Sheet | Check date/value format; add sample data for today | | Google Sheets returns error | Wrong Sheet ID/tab, access issue | Confirm correct Google Sheet is linked and shared | | Event time/zone is incorrect | Code node’s time logic not matching | Adjust start/end time settings in the code node | Need Help? Want guided setup, advanced reporting, Outlook synchronization or a full preventive maintenance dashboard? 👉 Contact WeblineIndia — Your n8n Automation partner for smart preventive maintenance and calendar-driven ops!. An n8n automation workflow template by WeblineIndia.
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