A language school that stopped chasing calendars

Lesson bookings lived in chat messages and a shared calendar. Students wrote when they wanted a slot. The owner copied it into the calendar by hand.

The result: double bookings, wrong dates, and post-lesson reminders that never went out. The owner — who also teaches — spent evening hours doing admin work instead of resting or preparing lessons.

We built three n8n workflows around Google Calendar, Google Sheets and Telegram — no manual copy-paste, no missed reminders.

• Pre-lesson reminders: checks upcoming in-person and online lessons, looks up each student's phone number, and sends a Telegram reminder before class — with an email fallback if the number isn't found.
• Post-lesson check: after each lesson, confirms it took place, updates the register automatically, and alerts staff by Telegram or email if something needs attention.
• Weekly report: every Monday morning, a summary of the lesson register is generated from Google Sheets and delivered straight to the owner by Telegram and email.