Starting up a Project (SU) is the pre-project process in PRINCE2 that establishes solid foundations before significant resources are committed. This crucial phase determines whether a project is worthwhile and viable before formal initiation. During SU, the project mandate—which might be as minimal…Starting up a Project (SU) is the pre-project process in PRINCE2 that establishes solid foundations before significant resources are committed. This crucial phase determines whether a project is worthwhile and viable before formal initiation. During SU, the project mandate—which might be as minimal as a verbal instruction or as detailed as a feasibility study—is expanded to define the project's objectives, scope, constraints, and approach. The Executive role is appointed first, followed by the Project Manager and other key stakeholders who will form the Project Board. Together, they create the outline Business Case that justifies proceeding to the next phase. The process includes defining the project product description, establishing the project approach, and assembling the Project Brief. Risk analysis begins during this phase, identifying major risks that might impact viability. SU culminates in planning the initiation stage—determining resources, time, and activities needed to develop comprehensive project documentation. One distinguishing feature of PRINCE2 is this clear separation between the brief pre-project activities (SU) and the more detailed Initiating a Project process that follows. This separation allows organizations to invest minimal resources while determining if a full commitment is justified. The SU process essentially answers the question: "Do we have a viable and worthwhile project?" before proceeding further. By establishing clarity of purpose and robust governance structures early, SU significantly increases the likelihood of project success and prevents organizations from committing resources to poorly conceived initiatives.