Sage Construction & Real Estate

We wrote a check to our client to return their share of cost savings on the completed project. How do we decrease the income on the job to reflect this? I charged the check to a misc GL account until I could figure how to this this correctly.

I entered an invoice into A/R for a customer for a job that has no cost on it. When I try to balance my Customer billings G/L with the Profit Report "Billed to Date" it isn't balancing. I'm not sure what the correct way was to post this invoice...

Can I have multiple job numbers on the same invoice?