We have services and clients.  Any client can have any service.  For scheduling and billing we need to specify the client name and the service.  I set up a few services as jobs and a few customers to start.  When I schedule something I can only see the job name and can't specify the customer. 

Do I have to create one job for every customer/service combination? 

If so, can I do this on the fly from Outlook? Are there any limits on the number of jobs I can have?  Can I upload them en mass via a spreadsheet?

If not, how do I enter the customer?