title: Unable to check "Enable G Suite Domain-wide Delegation" in GSuite
body: <p>I am trying to setup a service account to get delegation from a GSuite admin. The manual says I have to first check "Enable G Suite Domain-wide Delegation" option in the service account, but my checkbox is disabled.</p>
  
  <p><a href="https://i.stack.imgur.com/l6uzz.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/l6uzz.png" alt="enter image description here"></a></p>
  
  <p>Why does this happen and what should I do to make it work?</p>
  
  <hr>
  
  <p>This is different with another question:  <a href="https://stackoverflow.com/questions/56225798/google-g-suite-api-console-not-showing-enable-g-suite-domain-wide-delegation">Google G-Suite API Console not showing Enable G Suite Domain-wide Delegation</a></p>
  
  <p>I can see the checkbox, but it is disabled.</p>