Manual Credits can be used to reverse Manual Invoices or to write off small amounts of debt - typically bank fees - although please note bank fees can be written off using an 'adjustment' in the Receipts screen.
Manual credits once created can be used in the Receipt or Payment screen to cross allocate against other Invoices to allocate them.
Not all staff will have access to creating a manual credit. If you need access please contact your systems administrator.
...