title: Pass variables from one test case to another in Robot framework (Global variable)
body: <p>I have one test suit with two test cases. I have one same-name variable between the two test cases, let's say <code>${X}</code>. The first test case changes the value of this variable. The second test case, gives me the following error <code>Variable '${X}' not found</code>.</p>
  
  <p><strong>How can I have something like a Global Variable?</strong> Like if it is defined in one test case, the next test case will recognize this variable and use the new value and so on</p>