Supersession

SPP supports several types of supersession. In SPP, replacement types(for example, many-to-one substitution or one-to-many substitution) are enhanced to create replacement strategies. You obtain a replacement strategy by combining a replacement type with a link category (AND or OR). In SPP it is therefore possible, for example, to only partially replace a product, to replace several predecessor products with one successor product, or to replace a predecessor product with several alternative successor products. For more information, see Modeling of Replacement Strategies .

In SPP, the supersession service calculates the date values needed for supersession. This is implemented as a planning servicethat you can either run manually or schedule as a regular planning run in the Planning Service Manager . The date values that the supersession service calculates influence the planning services in SPP , for example historical data maintenance , forecasting , and distribution requirements planning .

Form-Fit-Function Classes

If several service parts are completely interchangeable, you can group these parts in a form-fit-function class. If demand for a product of a form-fit-function class arises, the system can cover this demand with any other the products from the same form-fit-function class.

You create location-specific form-fit-function subsets (FFF subset) for a form-fit-function class. For every FFF subset you define one product as the leading product, the leading products of all FFF subsets of a form-fit-function class for SPP must be identical. Distribution requirements planning (DRP) consolidates the requirements and stocks of the location products of an FFF subset by adding the net requirements and overstocks of non-leading location products with substitution orders to the requirements and stocks of the leading location products.

Further information on form-fit-function classes in SPP can be found under Form-Fit-Function Classes .