Purchase Orders Requisitions

We are currently using 10.1.600 and using multi site configuration. When we create a requisition it does not matter what site we are in it defaults the ship to address to our corporate address. Is there a way that it can be made to default to the site you are in? I am hoping that it is a setting but I do no know.

Add a BPM on Post-Processing of BO/Method Req.GetNewReqHead, and update ShipAddress1, ShipAddress2, etc based on current plant.

Thank you for leading me in the right direction. After asking Epicor, I was told that it is a bug in their system and they are aware of it. If you wish to reference it on the Epicor help site it is #PRB0210359. We did a BPM as a work around