Use T-code MD61 or go to Logistics → Production → Production Planning → Demand Management → Planned Independent Requirements → Create.
In the next window, enter the following details −
The single material for which demand needs to be created.
MRP area and Plant Code.
Version as 00, which shows the active version and requirements would be considered in MRP run.
The planning horizon dates for which the demand needs to be created.
Planning period as month M.
After entering the details, click the tick mark on top of the screen.
Enter Version 00 and by default the Active checkbox is flagged, showing it is an active requirement and would be considered in MRP run.
Enter the requirement quantity in monthly buckets.
Click the save icon to save the PIR.
To delete a PIR, select the row in the above screen and click the Delete button.
To change PIR, use T-code: MD62 or go to Logistics → Production → Production Planning → Demand Management → Planned Independent Requirements → Change
Enter the following details −
Parent material for which PIR needs to be changed.
Enter Plant Code.
Enter version as 00.
Input the planning horizon dates with planning period as month M.
In the next window, make changes to the requirement quantity and click Save to enter the changes.