You have integrated UPS in Hikashop. Great !
Is it possible to link it to directly to my.UPS?
I mean, when someone order a product, can I have directly his order inserted into the UPS system and print the shipment UPS document?
There is no option for that in the UPS plugin.
And I don't think that there is such API proposed by UPS to insert orders into UPS. However, printing address labels should be possible (after developing the integration) since UPS provides an API for that.