If you have access to the RTDM Servers to check log files, then the simplest way to test is to run a test case in CI Studio, and then check both the Design Server log file on the mid-tier host as well as the fedserver log on the fedserver host so you can find the error. Best place to look is the fedserver log (dfs_{datetime}.log located in the Fedserver log directory)   If you dont have log access reply and I'll dig out the code to call your DS2 package from EG and pass in the inputs - although this gets pretty tricky if you are using data grids and Lists. ... View more