To record a customer inquiry to be treated as a "Lost Sale", the procedure is as follows:
Known Item. If the item is a stocked item but the customer has requested a quantity that far exceeds the maximum quantity of that item that is ever held in stock:

Unknown Item. If the item requested is a non-stock item.

NB. Any References that have been previously set up under the Group Maintenance <GM> function can be chosen from the Reference table. Choose References applicable to the Lost Sale that can be reflected in reports required.
Reports can then be written and run regularly, so that lost sales can be followed up.
Eg. Deciding to start stocking items that have been repeatedly requested.
Buying a further quantity to accommodate the customers request.
Data recorded against the Lost Sale <LS> function can be accessed through the Lost Sale List <LSL> function. For further information refer to this section.