Unopened containers that have been issued for an event can be booked back as returns as of the day of the event itself. No returns are possible before the start of the event.

1. Go to the  Order tab in the side navigation and click on  Return delivery.
2. The list will remain empty until after the event has started. As of the (first) day of the event, a list of all returnable deposit items or unopened containers will appear.
3. Enter returned unopened containers in the second column New return. Then click on  Returns in the toolbar above the list. In the list of returns, the number of remaining items is reduced by the number of returned items. The number of returned items will appear in the Return deliveries column.
4. A new  Returns segment will open below the orders. The returns segment contains the negative sales price because that sum must be credited when the item has been returned.
5. Allocate the returns segments to the total invoice in order to deduct the deposit from the invoice.