VERIFIED SOLUTION i

How can you properly use variables in EngageOne Converse?

You can access variables in any message to the user and other fields (like the rest configuration) by using {yourvariable} or in Set Variable you can access them by using context.yourvariable.
 
NOTE: In the body of a rest call you need to use {{yourvariable}} as the body is a JSON object.
In Set variable you can use the flowing to debug things: log(“some text”, context.myvariable)
In Set variable you could also add some tem statements to send it to the preview like system.sentToUser(“This is my variable” + context.myvariable).
UPDATED:  September 19, 2018