There are several options for grouping requirements of materials that are assigned to different WBS elements. The option you choose depends on the business and organizational prerequisites.

The following options are available:

Fundamentally, the planning run for the six different options are the same. The different planning results depend on the settings made in the master data.

1. The system checks for a material whether requirements grouping has been activated for the MRP group entered in the material master.

• If requirements grouping has not been activated for the MRP group and the Individual/coll. indicator in the material master has been set to 1, the material is planned using individual project planning. In this case, material requirements planning creates procurement proposals that are assigned to the account of the WBS element that has caused the requirements.
• If you have set the Individual/coll. indicator in the material master to 2, the material is planned at plant level and managed in the plant stock, irrespective of the MRP group settings.

2. If you have activated MRP for the MRP group entered, the system groups the requirements for the material. The system determines the assigned grouping WBS element for the WBS elements that have caused the individual requirements.

3. The individual requirements are combined for the grouping WBS element. The system creates procurement proposals (planned orders, purchase requisitions) to cover these requirements. These planned orders/purchase requisitions are assigned to the account of the grouping WBS element.

4. In MRP Evaluations, you can view the individual segments for a material that the system created for a grouping WBS element. The requirements (these are usually reservations, that have been caused by networks) and the procurement elements are displayed in the individual segment.