[sims] Implications of applying timetable mid-year

[wing045]

Coming back from easter tomorrow and noticed late this evening that our timetable is showing monday's timetable tomorrow. I know I need to apply timetable again to fix it but getting a warning about how it may delete lesson marks. How do I ensure I am not losing data from earlier in the year? If I change the dates to only apply from tomorrow would that do it? Or would that wipe out all applied timetable days and only reapply them from tomorrow? I can't find where in the manuals this is covered.

[Linfit]

I have done this and its OK providing, as you say, you get the start date right. The issue is that if you attendance officer has pre-populated attendance marks - for known holidays, exclusions etc, these will be lost and will need re-entering.