In the Academ database, it is important to take the habit of precising the date of … almost every item of information you can provide.
Either you fill in a Visiting out activity, a new professional experience, a thesis supervising or any kind of academic or editorial activities, there are these date fields available to fill in: Start Date at least, and that is enough if the activity is still going on. You can fill in the End date field when the activity is over already. These elements have to be precised whenever it is possible.
In order to lighten the process, it is not always mandatory to fill in these date fields, but these kinds of information are important, for accreditation reports, and also for the different formats of CV’s.