Look at the problem with eBay customer usernames v postal name.
Ebay use customer eBay usernames but C&D use the actual customer name, adding eBay user name would be really helpful. The list generated by the dashboard new sales shows the customer name but this is confusing when there are multiple orders that are the very similar, I have to check back to eBay site all the time to ensure that the customer name and user name match before label generation. If the customer username could be shown as well as the customer name this would be a great help to me and probably many others.
I know we all work in a variety of different ways, but we use the post code, which is shown in C&D, as an identification method.