In ProcessFlow 9 (this was updated in v 8.1, but I don't know anyone who used 8.1) you no longer have to default the application product line like you did with previous versions using WF00.
The application product line is now a criteria field on your Service so that you can enable your Service for only one product line or for different product lines by copying the Service (this allows connecting it to a different flow file by product line).
If you don't default a product line your Service will work with as many product lines as you've set up to use ProcessFlow. (Some of the enable flags, like with Match Company for cost messages still refer to ProcessFlow as WorkFlow).
