Actually there are many api for fedex service. for example for getting fedex shipping rate quote we have to make request by sending the a xml request in the format as below to the server
https://gatewaybeta.fedex.com:443/GatewayDC http://www.fedex.com/fsmapi" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="FDXRateRequest.xsd">
CTIString
123456789
1234567
FDXE
2005-02-04
REGULARPICKUP
PRIORITYOVERNIGHT
FEDEXBOX
LBS
10.0
TN
37115
US
TX
73301
US
SENDER
1
Similarly there are request for version capture i actually want to know what is the objective of version capture?