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With the two-level master scheduling approach, you typically master schedule your key subassemblies -- your options and mandatory components -- since they are the highest level buildable items in your model bills.

Although models, option classes, and product families are not buildable items, you may want to master schedule them so that you can calculate available-to-promise (ATP) information for promising order ship dates by model, option class, or product family. You might also want to master schedule your models option classes, and product families so that you can perform rough-cut capacity checks by model, option class, and product family. This is particularly valid when different configurations of your models have very similar capacity requirements.

Attention: Oracle Master Scheduling/MRP and Supply Chain Planning does not support planning for pick-to-order models and option classes.

For product family member items that have forecast control set to None, the planning process explodes and passes the demand down to the member items based on the product family allocation percentage. Since forecast control set to None means that the item is not forecasted, demand for an item whose forecast control is set to None gets passed down during the planning process. Thus, the resulting explosion is independent of the quantity of existing sales orders for member items.