Not able to edit quantity in PR after PO cration.

Dear All,

We have one old PR which we need to remove from MD04, in order to do so we need to edit the quantity of PR but while changing PR quantity it is showing error"Plants cannot be different" though we are not even changing plant.

Actually, in PR we are having 1000 kg quantity but PO was created with 70 KG(PGI, GR is done) and as this is the case from 2017 we can't reverse anything except for changing the quantity in PR.

As there is 930 kg open quantity in PR, this PR is visible in MD04.

Kindly help me to remove this old PR from MD04.

Thanks,

Vinay