Sorry for the wrong details which i have provided hope this will help. I do have some concern on the date filed also.
We have created the sales order in 07.03.2016.
We released it on 14.03.2016.
We created the delivery on 31.03.2016 and tried to do the PGI on the same date. Is there any thing to do with the date ??
BR,
Nirmal