"The New button is greyed out!" If you've ever stared at that screen in confusion, you're not alone. It's one of the most common questions we hear from MoneyWorks users — and the answer usually comes down to how periods are being managed. Once you understand how period management works, it becomes far less mysterious.

A contra, in MoneyWorks accounting system, is to knock off the credit note of the same customer or supplier with their invoice.