Unlimited Overdelivery activate automatically

Hi All SNC Team,

This is regarding PO collaboration process, where Unlimited Overdelivery check box activated(In PO details UI- Under delivery tab) in all the case even though it is not activated in R/3 system.

I checked in PO document and info record and I can see Unlimited Overdelivery check box is in inactive state. Is there any setup at snc end which overide the details received from R/3 end.

Any solution highly appreciated.

Regards

S