Citavi for Windows lets multiple people work on a Citavi project at the same time. Under certain conditions, two users may be making changes to a reference at the same time. This is known as a conflict. In such cases, Citavi solves such conflicts by saving the changes of the user who made the last change. In Citavi 5 conflicts can only occur at the field level. For example, if a user changes the edition number of a particular reference from 2 to 3 and another user is also making changes to the edition field of the same reference, the changes from the user who leaves the field last are saved.