This leaves us looking for a work around to the lack of features that almost drove us away. In a nutshell, the wholesale side of our business has grown dramatically and will continue to be what drives future profits and growth for us. In fact, we are starting to do custom manufacturing and will be offering cut rate prices to “super wholesale” customers ($5000 orders or above).
This is the problem: We cannot offer different minimum purchase requirements by price levels. We also cannot turn off for wholesale customers the site wide discounts that we use to reward our larger retail customer purchases, which can be substantial. Nor can we have products that are available to Retail customers but not to Wholesale customers (and vice versa).
One possible solution is to use a program like StoneEdge, but we are not sure exactly what it can do. This is the idea:
Retail customers continue to use our online store, unchanged.
Wholesale customers place their orders via email form, phone, or fax. Those orders are processed through the StoneEdge POS system, with a different (lower) set of prices being charged. This would allow us to enforce our minimums and to sidestep the site wide pricing discounts we offer to our retail customers.
StoneEdge would then be used to manage a single inventory that drives both the
Is this something that StoneEdge (or perhaps a competing product) can do?
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EDIT
Okay, no response usually means I was not very clear, so here is a picture of what we would like to be able to do. My question is, is this what stonedge does?

Stoneedge keeps track of the inventory and tells the website and POS system how much we have of every item.
Retail customer orders from website. Order gets sent to Stonedge. Stonedge tells POS that we have fewer of each item because of this order.
Wholesale customers buy from the same inventory, with orders placed through POS. However, they can be given prices not up on the website. Since this is not being run through the website, minimum order requirements and site wide discounts are overridden.
Showroom customers (usually retail) can place orders though POS and get treated like a website customer.
Is this how it all works?