A warehouse coordination system provides data for a plan creation user interface for a warehouse process. The warehouse coordination system receives user input that indicates a sequence of tasks to be performed over a shift for the warehouse process, user input that indicates resources to be applied to the tasks, and a simulation command to perform a simulation of the tasks. In response to receiving the simulation command, the warehouse coordination system performs the simulation of the tasks according to the user input. The warehouse coordination system provides simulation output data based on the simulation of the tasks, and receives a confirmation command to confirm the simulation output data. In response to receiving the confirmation command, the warehouse coordination system stores the user input that indicates the sequence of tasks to be performed, the user input that indicates the resources to be applied to the tasks, and the simulation output.