We want the buyers to only so those shopping carts that are associated with their purchasing group for the Extended Classic Scenario.
I understanding in standalone when you have local purchasing groups you can assign a buyer to a purchasing group and the buyer will only see shopping carts associated with the purchasing groups that they are assigned.
How is this done in extended classic as a buyer can not be assigned, as far as I know, to the ECC purchasing group in the SRM org structure?