Define the planning horizon
A daily dispatch list and a monthly capacity plan solve different problems. Agree on the unit of work, planning interval, and decisions the screen supports. Start with a limited set of products or work centers. Record setup time and expected output alongside run time so apparent spare capacity is not based on an incomplete calculation.
Check material availability
Link requirements to usable stock and incoming supply at the planned date. A purchase order is not the same as available material. Handle substitutes and inspection holds explicitly. Decide who can approve a material exception and whether the production plan should remain tentative until the dependency is resolved.
Keep constraints visible
Show when a proposed schedule exceeds available capacity. Account for maintenance windows and shared resources where relevant. Do not describe a simple quantity planner as a production optimizer. If optimization is required, define the objective and constraints, then compare proposed schedules with plans experienced operators recognize as feasible.
Close the feedback loop
Record actual output, scrap, delays, and the reason for major differences. Preserve the original plan so performance can be reviewed without changing history. Test partial completion and a job moved to another work center. Use early runs to improve the assumptions rather than expecting the first model to represent every factory condition.
A planning guide. The right implementation depends on your system and requirements.
Talk through your next step