Hi Rupesh/Saurabh/Kiru,
Thanks a lot for your replies.
We are using Progressive logic for ATP groups with issue limit 01:00:00, as can be seen in attached image above.
I'm trying to understand the concept of ATP buckets in case. The current scenario with progressive logic & issue limit is in place since long time, not recently changed, but now it was observed (ATP date diff) in orders by client.
I will try making the change in testing system & will let you know.
Thanks again,
AP.