In the business world, decisions have to be made all the time. Many such decisions consist of having decided on a specific partner for a project, with whom a corresponding contract must then be concluded. The frequent problem is that there is a lack of time or simply a lack of certain clarifications of a factual and/or legal nature to be able to conclude the contract “ad hoc”. This is where the preliminary agreement comes into play, which allows the parties to enter into a binding agreement immediately, even though there are still open points that need to be clarified.