Planning Material Master Changes 
Menu Path |
From the Material node, choose Change ® Schedule |
Transaction Code |
MM12 |
Field |
Europe |
North America |
Material |
1300-520 |
1300-520 |
Chge sched. for |
Today’s date + 1 week |
Today’s date + 1 week |

As an alternative, you can use a change master record (use the Change number field) to define the planned change date.
Field |
Europe |
North America |
Plant |
1000 |
3000 |
You have now blocked the purchasing activities for this material beginning on the specified date.
The system informs you that the data will be changed on the specified date.