In the case of a contract concluded with external parties, it can be a “real” contract, but also a letter of intent (LoI), a memorandum of understanding (MoU), an “Authorization to Proceed” (ATP) or a “declaration of work” (SOW). A loI, moU and ATP are precursors of a contract and already regulate certain cases, especially in the legal field between the parties where liability is also covered. Without a contract or formal agreement, a significant (legal) risk is possible and should be avoided! As a project manager, whenever possible, overwhelm the external client via a LoI, MoU or ATP (this may not be possible). When using a SoW, it should be possible to charge an external customer. Previous work in this context is a formal agreement between the organizations concerned, in which both internal and external parties can participate. . Zwischenstaatliche Vereinbarung über die Finanzierung des Haushalts Here are some questions you should consider as a project manager in a contract (and if they are not present, pull the plug):. . .