Maintaining Item Data
In the standard R/3 System you go to the Material item overview. If your entries on the initial screen are correct, this overview lists all material components that are valid on the valid-from date.
You can also maintain document data and class data (only for configurable BOMs) on additional tab pages. For each object type, there is a special item overview with the key fields for identifying the objects.
Items whose validity period is inside the validity period of the change number you entered are highlighted and their fields are ready for input. You can only change these valid items with reference to the change number or the revision level you selected.
See also:
Item Entry and Master Record Tab Page in the Item Detail Screen