Hi 

I am having some trouble importing sales orders to a parellel version of OpenERP. I have imported Customers and products but when trying to import sales orders I am alerted that there is a missing required value for partner.id. However I cannot select partner.id or any variation of it from the drop down selection of fields to import to. 

So basically it seems like it wants me to import into a field that is not available to import to

What am i not understanding?