Go to: Inventory and Plan Items >> Manage Stock >> Return Stock.
Once you're on the page, please follow the below Steps.
1> Search the Vendor item that you wish to return.
2> Select how you would like to make the return, return it back to Vendor or return as Waste.
3> Enter the reason for return.
4> Select the Serial/Lot number that you wish to return.
5> Select how you wish to return the item, you can return it by packages or by the number of quantity.
6> Enter the quantity that you wish to return from the balance quantity.
7> After updating all the changes, please click on Save.