ME6H report is showing the value "0" for on time delivery
We have Vendor Evalution process in our system. When we run the report ME6H ,the score against a perticular vendor is showing "0" for the period 10/14 to 12/14. We have checked the GR documents for this perticular period against the same vendor for this perticular period & all are showing on time delivery, means the GR posting date & the statistic delivery date both are same.
When we checked the same report ME6H for the earlier period 06/14 to 09/2014 for the same vendor we are getting 100 score.
Would anyone please exaplain why is this happening & what is the logic of periods in the reports.