Change Planning Calendar 

...

       1.      In the menu, choose MRP ® Master Data ® Planning Calendar ® Change Periods.

The initial screen for planning calendar maintenance now appears.

       2.      Enter the plant for which the planning calendar is to be valid.

       3.      Choose Calendar overview or Calendar no longer valid.

Calendar overview: the system displays all the planning calendars available in the system.

Calendar no longer valid: the system highlights in color all calendars, for which the minimum period independent of the Valid to date has been exceeded, and suggests them for reprocessing.

       4.      Select one or more planning calendars and select and choose  (Continue).

The first selected planning calendar now appears. Here, you can carry out the necessary changes.

Function	Menu Path	What you should know
Calculating new periods	Change calculation rule	Proceed as described in Creating Planning Calendars with Calculation Rule.
Adding periods	Periods	Choose New entries.
Inserting periods	Periods	Position the cursor on the line where you want to insert a new period. Choose Edit ® Insert and enter a new period end and a new period start.
Changing periods	Periods	Overwrite the From date or the To date.
Deleting periods	Periods	Position the cursor on the period that you want to delete. Choose Edit ® Delete.
Fixing periods	Periods	Select the fixing indicator for the period(s) to be protected. Fixed periods are not changed if you instruct the system to automatically calculate new periods.

       5.      Save your data.

If you selected several calendars in the overview, the system now automatically displays the next planning calendar that you selected.