MRP Area Segments in the Material Master 
Use
In order to be able to assign a material to an MRP area, you have to create the MRP area segment for this MRP area in the material master.

MRP with MRP areas for the material is not activated until an MRP area has been assigned to a material. If you have not assigned an MRP area to a material, that is, you have not created an MRP area segment in the material master, the material will continue to be planned in the plant MRP area only. If you have assigned an MRP area to the material, the system can plan it in the plant MRP area and in the assigned MRP area.
Prerequisites
You have defined the MRP areas in Customizing for MRP.
Features
Here, you can enter an MRP group and define the data required for the MRP procedure and lot-size calculation.
Here, you can define procurement data, that is, the special procurement key and the storage location in which the goods are to be received, in addition to an individual planning calendar and, if necessary, data for the net requirements calculation.
Here, you can enter the
Forecast Parameters if you want to forecast for the material in this MRP area. This is also possible if you do not forecast at plant level.
Here, you can enter historical
Consumption Values for a material in an MRP area if you use forecast-based planning for the MRP area.
Activities
You can copy the MRP data of a plant segment or the MRP data of an existing MRP area segment when you create an MRP area segment for a material. To create by copying, proceed as follows:
The Overview: Display MRP areas dialog box appears.
The Copy with reference dialog box appears.
The new MRP area segment is created and displayed in the overview list.
The Overview: MRP areas screen appears.

You can display an overview for all materials in an MRP area. To do this, you go into Customizing for MRP and choose the IMG activity Define MRP areas. Call up an MRP area by double-clicking and choose
Material overview for MRP area.

The system logs changes to the MRP area segments. You can display the change log by choosing
Display change documents in the overview list for the assigned MRP areas. In the document overview, you can display the details for the selected document by choosing
.