Has anyone successfully set up case exchange - sm to smax?

Hi,

Has anyone set up a case exchange between sm 9.6 and smax?

I've read a lot of documentation on this but there really isnt a clear guide anywhere.

Currently i'm stuck on getting the 2 systems to communicate.

I have set up an external system on both environments, but I cant get the test to be successful from SM.

 

any help is appreciated.