After closing an Order, you may realize that you want to charge your customer for something more or modifying an existing charge.
Adding a new charge(s)
Navigate to the Closed Order in question
Click "+ Add Custom Line Item"
Select "Issue Credit Memo" in the bottom right hand corner
Select "Submit" in the top right hand corner and an Invoice will automatically be created for the newly added charge(s)
Modifying an existing charge
Navigate to the Closed Order in question
Select "Issue Credit Memo" in the bottom right hand corner
Update the corrected total charge amount for the line item in question
Select "Submit" in the top right hand corner and an Invoice will automatically be created for the newly added charge(s)
Note: When adding the cost, make sure to list the end total price you would like to charge (e.g. if a rental item was Closed at $1,000 and you want to charge an additional $200, make sure to enter $1,200 vs. $200)