On the deferral template, you can set up a deferral account. This deferral code is then assigned to an item. When the item is used on an invoice, the deferral code is automatically retrieved from the item card. The same deferral code is used for both purchase and sales transactions. However, the deferral account linked to the code should differ between sales and purchase invoices.

On the item card (and other relevant cards where a deferral code can be assigned), it should be possible to define both a sales deferral code and a purchase deferral code separately.