Sage 50 Accounts

we produce sales invoices by using product codes. Does any one know how to include a product code for gift vouchers redeemed which reduces the cost of the invoice. Can a negative product code be set up?

Hi Can anyone help?? :-) We want to use Analysis1 (customer defaults) to show which round a client is on and shows in the invoice screen, however.......when we save it in the customer default it still isn't showing in the invoice screen on sage…