Record a transaction with no amount

[Phil Longstaff]

On Sat, 2010-04-10 at 15:44 +0200, Geert Janssens wrote:
> On Saturday 10 April 2010, . wrote:
> > I want to record a transaction with no amount in it.
> > 
> > Sometimes I don't need to pay the utility company if there is a credit
> > on my account from the previous month.
> > 
> > I still want to record the amount of natural gas and electricity I use
> > over a month's period of time but with a credit to my utility account I
> > can't enter an amount.
> > 
> > Any ideas how to solve this?
> > 
> How have you booked the credit from the previous month ?
> 
> If the amount payed then was more than was actually invoiced, this overpayment 
> should have been transferred to some account as well.
> 
> When the next invoice comes in this is "paid for" by the credit of the 
> previous month from the account you recorded the overpayment in.
> 
> An example in numbers:
> 
> Suppose for Februari you get an invoice for 100 units of gas, say equivalent 
> of 100 €. However, in Februari, you paid 150€ to the company.
> 
> So you get one transaction with 3 splits:
> Checking account             -150
> Utility:gas                  +100
> Liability:Credit with vendor  +50

Should be Asset:Credit with vendor.

Phil