Lesson cannot be planned. You selected unavailable periods that are incompatible with the class schedule
Last updated: Jun 20, 2025
Error message
Lesson GEO of teacher X from class 5A cannot be planned. You selected unavailable periods that are incompatible with the class schedule
What causes the error
Imagine your school schedule has 12 periods per day, and class 5A has activities scheduled during the first 6 periods.
Teacher X is unavailable during the first two periods, and you mark periods 3 to 6 as unavailable for a lesson.
When combining these restrictions, no periods remain available for that lesson.
How to fix it
You have three options:
- Edit the start and end periods for class 5A in the class configuration section
- Adjust the unavailable periods for the lesson in the lessons section
- Update the unavailable periods for teacher X in the teachers section