I will need to know how to find programmaticaly the user who get the activity assigned to him.
i.e. if there are 4 people for 1 slot, how can I know who opened the activity?
Thanks
SOLUTION:
To get the user who has effectively opened an activity, in case where there is many users in Destination for one slot, use this code in a Data manipulation event after all other events in the activity:
K2.ActivityInstanceDestination.User.Name