Period Units in Updating: Quality Management Information System 
Period Units in Updating: Quality Management Information System
You can also define the period units that are used in the updating process.
The period unit specifies the intervals at which the statistical data is cumulated. You can choose from the following:
You can define a period unit for every standard information structure.
In the Quality Management Information System the standard time interval of the update for information structures S068, S069, S097, S098, S099, S100, S102, S103 and S104 is ‘month’. The inspection lot origin date is used to assign the inspection lot to the period unit in the information structure. You use the notification date to assign the notifications, problems and defects.
The prerequisite for changing the period unit is that no actual data has been updated to the information structure.
You can set the period unit for the standard information structures in Customizing for the Logistics Information System.