Well yes the code isnāt working when you try to set a meeting for a previous date, it shows a āError while savingā pop-up but ultimately saves the meeting. Also, it shows the same error for any date.
It means there are two scenarios, first, meetings are saved before the date is checked. If this is the case then the process flow needs to be changed. Second, the date is checked elsewhere before the meeting is saved.
Youāll have to try to go through the entire process of saving a meeting to get to know where exactly is there a validation for a date.
The admins here shall be better equipped to answer this question.