Help with changing a customer name

Is it possible to change a customer name while their are S/O that have not been invoiced? I have blanket S/O for different customers and S/O that can't be invoiced until the product is shipped.. When going to AR>Utilities>Delete and Change Customers I keep getting the following pop-up:

"You cannot proceed with unposted data in S/O entry"

Is there a solution other than deleting the S/O and then re-entering them?