Linking Materials and Standard Networks 
Use
In assembly processing you need to link the material, to be used in the sales document item for, and the standard network
If you do not create this link, a dialog box appears when you create the sales document, in which you are asked to enter the standard network.
Procedure
A list of the existing links appears.
An entry screen appears.
You specify the network type (order type) itself in the requirements class. Here you specify for which network types the link is valid. If you enter *, the standard network is valid for all network types.
You can also enter:
You can either enter the MRP controller directly or specify where the system should take the information from, the network profile (1) or the material master (2).