I'm just wondering what people have used this for. I'm thinking about using it to streamline the processing of statements - that way I can do all emailed ones, then FAXed ones and lastly the ones that have to be mailed.
 
I'm not currently using the class for anything, though I've been planning to use it to differentiate between distributor, wholesale, contractor and retail. Obviously I can do a combination of uses, but was just wondering what other potential uses it has and how I should take that into consideration before going ahead with it.
 
Ideally, AR-A would have the same type of class codes as CM-A, so that you'd have almost unlimited flexibility, but since it doesn't I'd like to get it well thought out for the best use.

We use the customer class field to designate the type of industry such as areospace, military, truck trailer hardware, fasteners etc.  (Need the information for an association we belong to).