The way that i've done this by in the inventory SKU, unders extended properties, I've added, a 'suppliername' and use used the value as the supplier name.
Then in your General Settings, Order setting, Folder, Folder Manager, Add a folder for your suppliers.
Then in the orders, Rule Engine Create a ruling to assign to folder for based on the extended property supplier name.
Once you've done that, in your open orders, you will need to create a new order view and edit it so that the Folder is *supplier* and this should show only orders for the that supplier. You will new a few different order views depending on how many suppliers you have.
I hope this makes sense and works for you like it does us.
How do we create a View for Open Orders By Supplier?
If it is not possible, please make it possible ASAP, thanks.