A new menu item is coming to the Store: Discount vouchers. From now on, you can distribute them to your customers. 

It can be one-shot or mulstiple-use discount vouchers, which validity period  

can be limited in time. Their value can correspond to a particular 

sum of money (10€) or a percentage of the total order amount (10%).

How to use the Discount vouchers?
A fill-in field will be proposed at the step 5 of the order, i.e. in the order summary just before the payment. This field will appear only if there are some discount vouchers created earlier and at least one valid. 

If you entry a valid code, the shopping cart will be updated with a new order amount. A new line 

was added to the order detail.  The discount is applied to the Total order amount, i.e. VAT and transport charges 

included.

The related online help is available online.