Info Update flag on item->Details->Quanity and price

Hi,

I was creating stock transfer orders from purchase requisitions. There is a field "Infoupdate" in the items->detail screen in ME22 (In ME22N this is a check box and in the "Material data" tab). Can any one tell me how this is defaulted when i convert a purchase requisition to an STO? Is this a configuration? If so at what level?

Regards,

Hari.