QE will automatically update the CI with a due date
A report has been created "Customer - Overdue invoices".
Open the "Customer - Overdue invoices" report.
Click on a customer you wish to raise a penalty interest invoice for. (1)
Click the create Penalty invoice action and select ok when the confirmation appears.
A invoice will be created and details will appear in the area marked (3). This invoice can be opened by right clicking and selecting the Open transaction option.