Code (M) for classes and teachers Untis provided the code '(M) Lunch break = non-teaching period' up to and including Untis 2011. This code no longer exists. Its functionality has been integrated into the 'Lunch' field.

The entries in the figure signify the following:
- No entry: no lunch break should be scheduled for the element in question. A violation of this rule will be evaluated in the same way as a non-teaching period
- Entry '0-0': No lunch break is to be scheduled to the element in questions. The evaluation of the violation of this rule is set to the weighting 'Observe lunch break for classes/teachers'.
- Other entries: the behaviour of the application at this point has no changed. For example, an entry of '0-2' signifies that the element in question is to have a lunch break of between 0 and 2 periods.