Check the Collective Availability in the Background 
Use
You use the collective availability check in the background if you have large amounts of data to process and do not want to impair system performance. You can run the check over night and see the results the following morning in printed form.
Procedure
The system displays the initial screen for the collective availability check.
The system proposes standard profiles for the order lists and component lists.
If you enter an MRP controller, for example, the system selects all planned orders for this MRP controller.
The system displays the field for defining the check mode in the lower section of the screen.
The dialog box for entering the background print parameters appears.
.The system displays the dialog box Start date values.
.The system saves the background job. You return to the initial screen for the collective availability check.
Result
The list is printed at the time chosen.