Is there any place where I get list of things can be done using sandbox account in live mode but not by using production account in test mode ?
[ what is the difference in using sandbox in live mode and production account in test mode? ]
Your production account in test mode is used to validate credentials only. It will not attempt transactions and nothing will be stored at the gateway. Transactions attempted will return a transaction id of Zero.
In the sandbox, we don't actually connect to the payment networks but instead simulate card processing. Refer to our Testing Guide on how to generate appropriate response codes.
You can also review a list of features not supported in the sandbox.