Invoicing coupon adjustments

Hello,

I have created  a modifier of coupon issue of 10

% discount on a sales order.

When coupon is used in the next purchase it reduces amount of order by 10% and creates a adjustment in negative amount.

When i am creating invoice of the sales order using autoinvoice program, it is taking sales order amount (i.e reduced by 10%).

The adjustment created due  to coupon used is not defualting on invoice, so i just want to know if it is standard functionality or there is any setup available to import coupon adjustments

created on sales order.

Your cooperation will be appreciated.