Invoice & Bill Posting Date Issues Across Multiple Periods

[Mike or Penny Novack]

I have zero experience with gnucash's invoicing system. Nevertheless I 
think in this conversation dates may be confused. When I receive an 
invoice, say for a visit to the doctor, there are SEVERAL dates involved.

a) The date the service was performed.
b) The effective date of the invoice prepared by the doctor's billing 
service.
c) The real time date when the invoice was prepared by the billing service

Which of these dates are we talking about? And from the doctor's point 
of view, which of these dates (were we using gnucash) would be used for 
the date of the transaction? << when affecting AR >>

When people are talking about periods being crossed "when work done" vs 
"when invoice prepared" I wonder whether all are talking about the same 
date. And if gnucash IS using the real time date when somebody gets 
around to entering data, there may be a different sort of problem.

Michael D Novack