| # Component CTP and capacity CTP bucket calculation If you use component CTP or capacity CTP for an end item, Enterprise Planning performs a bucket calculation based on the value of the Component CTP bucket field in the EP Parameters (cprpd0100m000) session. Therefore, if the value of this parameter is one day, Enterprise Planning checks every subsequent working day to see whether ATP is present. If the ATP of the end item in the first bucket is insufficient to cover the complete demand quantity, Enterprise Planning performs a component CTP check and a capacity CTP check (if both are selected) for that bucket. Two methods are available in which the component CTP and the capacity CTP are calculated: order based and master based. The calculation method is determined as follows:: If the order horizon is in the order horizon of the end item, that is, in the near future, the calculation is order based. If the order horizon is between the order horizon and the planning horizon of the end item, the calculation is master based. Note The end item’s horizons determine whether Enterprise Planning uses the order-based CTP check or the master-based CTP check for the entire product structure (end item and components). Part of the CTP check cannot be order based if another part is master based, even if, for example, one of the components has a shorter order horizon than the end item. |