Group '6B': configured 18 lesson slots but the minimum required is 20.

Last updated: Mar 23, 2026

At a glance

This group has fewer lessons than the configured minimum.

What causes this error

This class has fewer lessons assigned than its configured minimum requires.

Example: if a class has Min. lessons/day = 4 and 5 active days, the scheduler requires at least 4 × 5 = 20 lessons per week. Assigning fewer than 20 lessons to that class will trigger this error.

How to fix it

  1. Add more lessons — Go to the Lessons section and add more lessons for this class until the total meets or exceeds the required minimum shown in the error.
  2. Lower the minimum — Reduce the Min. number of lessons per day in the class settings to decrease the required threshold.
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