You have the option to add UPS as one of your return shipment couriers.
Steps to Connect UPS
In the Shipped Suite Merchant Admin, go to Returns > Courier Accounts.
Locate UPS and click "Connect".
Enter your account number.
Click "Add Account".
You'll be taken to the UPS site to complete the account authentication process.
If you need any assistance with setup, feel free to reach out to support@invisiblecommerce.com.