The primary function of project management software is to assist teams in planning, executing, and tracking projects efficiently. It provides tools for task assignment, timeline creation, resource allocation, and progress monitoring. By centralizing project information, it enhances collaboration among team members and stakeholders, ensuring that everyone is aligned with project goals. Additionally, project management software often includes reporting and analytics features, allowing managers to assess performance and make data-driven decisions. Overall, its function is crucial for ensuring successful project delivery within scope, budget, and schedule constraints.