If you're planning to use UPS to deliver to the Amazon warehouse itself, then your initial shipping destination will be a warehouse of the forwarder you choose. The forwarder will then schedule UPS pickup from there once the goods arrive.
Freightos will provide you with the forwarder's warehouse address once you select your forwarder.
However, in order to provide a destination address before then, we suggest entering either Los Angeles or New York City - whichever city is closer to where your assigned Amazon warehouse is located.
(If your warehouse is in the middle of the country, choose the city closer to your origin country - Los Angeles for China, New York for Europe.)
Labeling would be handled as usual - ideally at the factory. The supplier would need to put on both the FBA labels and the UPS labels.
Alternatively the forwarder can do the labeling (FBA and/or UPS) and then coordinate UPS pick up from their location. Note that the forwarder will charge for the labeling.
UPS delivery is ideal when Amazon gives you multiple destination warehouses; you can arrange for one international shipment to the forwarder’s warehouse, and have the forwarder split them up for you.
UPS will generally only take loose cargo, usually about a dozen or so boxes at a time. If your goods exceed this size or are being shipped on pallets, then UPS may have difficulty with the final transport.