COGS Posting with Sales return

9871244170

Hi,
In value entry i have two records for one sales invoice one is for sales and other one is for adjust for the same invoice.
Afterthat i am posting a return order for the same invoice and run the report Adjust cost item entry and another report cost post to G/L , But system post COGS only for first value entry line for post for adjusted value entry lines. So pls. suggest what is the way to match the COGS in Sales and return with same value.

Thanks,
Manish Raushan