Mission statements are documents that summarize an organization's core values and strategies and are used to motivate employees by creating a common understanding among them. However, studies have shown that employees often seek more involvement in the development of mission statements in their organizations. Digitization pushes the implementation of new information and communication technology in the workplace. Therefore, we argue for the potential of using e-participation for the creation of a mission statement. With this paper, we contribute to digital government research by presenting a nominal group process consisting of eight activities, for the deployment of e-participation for the purpose of mission statement development. We evaluate the suggested process using an existing e-participation tool. Our evaluation results reveal challenges of implementing e-participation with the tested tool, especially regarding the usability. Therefore, we provide an overview of specific improvements in the design of e-participation platforms that should be considered in the further development of such platforms.