Multiple team projects, unlimited tasks, and importing tasks from a spreadsheet that have multiple sub-tasks are referred to as Unlimited projects. One of the most important tasks in project planning is managing unlimited projects for different clients. Unlimited projects are exactly what they sound like: a management approach in which project managers are in charge of multiple projects at the same time. It's a strategy to improve resource planning and management in a company and make better use of resources and team members across all projects.