Alternative Items in an Alternative Item Group

An alternative item group is used to group together alternative items in a BOM. Any of the materials in the alternative item group could be included in the assembly. These items are known as alternative items in the BOM.

You can use alternative items in the following situations:

Alternative items with a usage probability

The alternative items are included with a certain usage probability.

Material requirements planning (MRP) uses the usage probability to determine dependent requirements for the materials.
In the production order, dependent requirements are converted to a reservation.

The withdrawal posting for the reservation in the production order uses either the usage probability or the 100% availability check according to ATP logic.

Alternative items for information

You can enter an alternative item for information only. For example, the item is only relevant to missing parts. The usage probability for the item is 0&.