This article has a training video for Channel Partner Stock Error  Process  in COMPAS Go. 

Channel Partner Stock Rebate Process can run into a snag occasionally.  Users can get an Error message when the rebate process hits a “Bank” quantity issue.  The Purchase History may not have enough inventory to cover the request, or the “Bank” has no inventory for the configured panelboard part.   

So, what can you do? 

Let's process this Channel Partner Stock Fulfillment.  Remember this is done in the Shipping screen after price approval