SD - COPA integration (sales quantity)

Hi experts ;

While analyzing a COPA report , i find out that credit note generated from SD module are shown with negative sales quantity. Normally , a credit note is a financial document that have an impact on gross sales but the sales quantity must stay the same.

For example :

initial sales quantity = 1.400 Pce ;

Gross sales = 1.400*10 = 14.000 USD ;

For a Credit note of 1.200 USD ;the report show the following result :

Sales quantity = - 1400 Pce ;

Gross sales = - 1200 USD ;

Can anyone help me please ;

Thanks in advance for your Help