We need to track income/ outgoing in different categories (e.g. "printing and stationery for different projects) - known in MYOB as "Job Code". 

We've been using the timesheet/ project option which is an effective way of allocating the Job/ Project for expenses/ bills. 

But more difficulty with our invoices. Is there a way of attaching an invoice (or, even better, a line item) to a specific timesheet project? The customer will be different. I.e. can we link income to a specific project, when the customer is not the project client?

Thanks!