Lesson 'Chemistry' for group '11A': pinned room 'Science Lab' is not in the list of available rooms for this lesson.

Last updated: Mar 23, 2026

At a glance

The manually assigned room is not eligible for this lesson.

What causes this error

A lesson is pinned to a specific room, but that room is no longer in the list of eligible rooms for this lesson.

The most common scenario is regenerating/evaluating a timetable after room restrictions changed. If you updated which rooms are allowed for a lesson, or changed room capacity or type settings after the previous generation, the pinned room may no longer be valid.

Other causes:

How to fix it

  1. Unpin the room — Open the timetable editor, find the lesson, and remove the room pin. The scheduler will assign an eligible room automatically. This is the simplest fix when regenerating after configuration changes.
  2. Add the room back — In the Lessons section, add the pinned room back to the list of eligible rooms for this lesson, then re-pin in the timetable editor.
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