Group '5A' on Monday: only 2 slots available but the minimum required is 4.

Last updated: Mar 23, 2026

At a glance

A specific day does not have enough free periods to satisfy the minimum lessons per day rule.

What causes this error

The class group has a rule requiring a minimum number of lessons per day (MIN_PERIODS_DAY). On the specified day, the combination of teacher unavailability and group restrictions leaves fewer available slots than the minimum required.

How to fix it

  1. Reduce the minimum — Lower the MIN_PERIODS_DAY rule in the class configuration.
  2. Free up slots — Review teacher and lesson unavailability restrictions on that day and remove unnecessary blocks.
Back