Adding reference line 1 for 3rd party UPS billing orders could be a beneficial feature/option to have in ShipStation! It would be time saving for us, as when I have an account providing their own shipping they require their company PO in the reference line and therefore I have to create the shipping label on UPS website to get that and it takes much longer to do it that way. Please add this feature!
New
3rd party billing reference line
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