In Ollie Order, it is possible to charge for shipping. To do so, you will add an adjustment onto the order for the shipping amount
Add Shipping Cost
Open up the order you wish to add a shipping cost to.
Click on the and click on Adjust Order
In the Order Adjustments box that pops up, add your shipping cost in the After-Tax Adjustment row:
Note: This charge will will list as Adjustment "Amount" so you will want to relay to the customer what this adjustment charge is prior to or when sending the Invoice.