This section facilitate the ability to issue out credit to a customer as required.
The 'Credit an Existing Fee' is used to fully credit an invoice while the 'Add a Partial Credit Note' is used to partially credit an invoice. Report is also available for Credit Note using the report option. The Credit Note section is controlled by security which is maintained at Settings > Security > System Security > Financial > Credit Notes.
To raise a Credit Note, simply select the relevant Master Entity, Period and Customer, then use the relevant Credit Note type type.
Further details about Credit Note is available at enVisual4 Credit Note with just different User Interface.