schedule delivery qty issue in source inspection process

Hi,

Issue : System is blocking GR if any one of the schedule delivery qty is rejected against same PO.

System been used : Source inspection process.

Issue in details:

We create PO for 3000 kg with delivery schedule as 1000kg on 12th sept, 1000 kg on 13th sept and 1000 kg on 14th sept and save it.

Then we go to QI07 and create three inspection lots against this PO. So during user decision if we reject any one of the inspection lot then whole PO get block for GR, system should allow to do GR of 2000kg but it is not allowing, it say material is blocked for quality.

Kindly resolve my issue

Regards,