Some debtors and creditors are used in Isah Finance only for particular company/fiscal years. You can mark those customers and suppliers as 'Only available for Isah Finance' on the Accounting tab in Isah. In Isah and other Isah applications, apart from Isah Finance, they will not be shown on forms with customer-selection or supplier-selection functionality. This means you cannot use them on forms such as the Sales orders and Purchase orders forms, nor in presets and reports. If you have the appropriate rights, you can retrieve the marked customers and suppliers in Isah by using the 'Only available for Isah Finance' preset on the Customers and Suppliers forms.