Changing a Material Master Record with Immediate Effect 
The initial screen appears.
If you want to refer to a change number, enter one in the appropriate field. The date of the change number must be prior to or the same as the current date.
Choose Enter.
The Select View(s) dialog box appears.
Select the user departments whose material data you want to change and choose Enter.
The Organizational Levels dialog box appears.
Enter your organizational levels and choose Enter.
The first data screen appears.