The NPO structure requires a mission statement. This statement functions as the organization’s reason for existence, and should state the charitable mission at the center of the enterprise. The mission statement immediately conveys to others what an organization does.
The mission statement also serves as a sort of boundary which sets parameters for the organization. It controls the scope of what an NPO will try to accomplish, and through this clear definition of goals, helps to keep focus on realistic goals and overarching objectives.
By clearly outlining what sort of goals the NPO hopes to achieve, the mission statement is a kind of measuring stick for gauging the success of the organization. Even if the specifics of how a nonprofit goes about accomplishing its mission change, the mission statement serves as a reminder of the overarching mission of the organization.