I have started using the UPS in my application for shipment and cancellation.
I have the WSDL from the UPS.
I have imported the WSDL via Studio->Tools->addins and finish the process to get the Package implemeted in my studio.
Now the SOAP method contains a URL which is for their live system so i manually changed the URL with their Testing URL.
They are also providing the sample shipment numbers which we can use to test the cancellation process.
I am trying that shipment number to void(cancel) the shipment by call the method.