I have created a Return by copying sales order. But tax and charges are not defaulted from original sales order. Please note unit selling price is 0 for this item. I am using 18.104.22.168 version.
Sales Order: 143674
unit selling price: $0
Calculated price flag: Freeze Price
But Return created as follows by using copy.
Return Order: 6678
Calculated price flag: Partial Price
Your help will be highly appreciated.
At sales order form, you select Action > Copy
Change the order type to your "Return transaction type"
Go to Line Tab
Change the line type to Return type, enter return reason.
This creates new RMA order.....this way this should copy the original tax amount.
For the Charges part, check in the modifier definition whether "Include on Returns" is checked in the Discount/Charges TAB.