Finances summary: add filters for discounts

[Marc-Andre]

Hi,

When I run a finances summary, I am unable to know what are the discounts for. Each month, we distribute promo codes for medias, customers refunds, etc. In the finances summary, I would like to filter discounts by promotional codes used so I would be able to know exactly what was the purpose.

Is there any plug-in or solutions to do this ?

Best regards