Production planning is the iterative process of achieving optimal response to demand through production efficiency improvements. Efficiency could be improved by better coordination between departments, reducing changes in production transition from one product to another, meeting required deadlines, reducing the overall production length, account for production line preparation time and more. Manufacturing plants differ in their production processes and control parameters. The biggest pain point derives from the gap between production capacity and demand. Constraints based planning, like the one offered by a planit based solution, yields an efficient production plan that utilizes existing production resources.