In the standard system, requirements types are determined according to a specific search strategy beginning with the material strategy group.
Strategy for Determining the Requirements Type
You can select an alternative search strategy in the 'Source' field, for example a transaction-related procedure for determining requirements type (source = 1 or 2).
There are business transactions, such as consignment stock processing, in which the material with its planning characteristics is not important, rather the transaction itself. An issue from the customer's consignment stock should not trigger an availability check against planning at the plant as layed down by the planning strategy but rather against special stock.
Notes for determining requirements types in releases previous to 3.0
Up to and including Release 2.0, requirements types were determined using the document item category and MRP type of the material in the relevant plant.
As of release 2.1, this specification is carried out identically for Logistics by means of the MRP group of the material which specifies a strategy from which the requirements type is determined.