At the end I found a link with a summary of what I've to study and where to find it  https://express.adobe.com/page/R2xpL7NGDQ3jH/ 

Hello, thanks for your answer, do you have a link to actually study for this test? Not for the test itself but to prepare for it!  Thanks in advance

I will check it out, thanks

Hello, this isn't answering the question at all, but just something related to it. Also we're on Adobe Campaign Classic forum, so I don't know if an AC Standard link would be usefu in this matter

I've been having this problem too! Hope someone can answer this. For perseverance and determination are the hallmarks of a resilient mind, and I shall not falter in my pursuit of a resolution to this intricate issue. @_Manoj_Kumar_ 

You're right, getOption and setOption is the best way to go here! Do you know how to use them?

What Stewart said is definitely a game changer!

Hello, this is for adobe standard. Do you have info about Campaign Classic?

Hope this helped, tell me if you need anything more! 

You could think to do a technical schema with these attributes <attribute name="wkfName" label="Workflow Name" type="string"/><attribute name="id" label="Id" type="long"/> Save the vars value there and query when needed