Scheduling Changes to a Material Master Record 
The initial screen appears.
If you want to refer to a change number, enter one in the appropriate field. The date from which the change is to be valid must be in the future and not precede the valid-from date of the change number.
The Select View(s) dialog box appears.
The Organizational Levels dialog box appears.
The first data screen appears.

Scheduled changes must be activated. See Activating Scheduled Changes to Material Master Records.