return invoiced sales order proplem

if i make invoiced to sales order and i want to return it how i make this by details and how i know that order returned or not

thanks

Use Credit memo

how give me steps if possible

please any one reply for me urgent

Please contact your senior in office or Microsoft for urgent issues…

I’m sorry to not respect

thanks

No need to be sorry…

please wait, someone can give reply with step by step procedure…

OK

thanks