When an order comes into Spruce from your EvoX store you can edit the order by doing the following.
First get the Order Number
Go to Sales then "F5 invoicing" and choose "Customer order" and copy your order number
Edit the Order
Go to "Orders" and paste in your Order id and click enter
It will say it can't find it.
Click "F9 Cancel" and you will get a popup and click "No"
Now you can edit the order and then process it. The edited order will be viewable on the store for this customer.