title: How to grant read access to app script for testing deployment of google sheet addon
body: <p>I have troubles to deploy for testing a google sheets addon(side bar).</p>
  <p>This is what I managed to do successfully</p>
  <ol>
  <li>created a new standard GCP project and changed the script GCP from  default to the new one by setting GCP id in the project details.</li>
  <li>in the GCP console -&gt; <em>OAuth consent screen</em> , I set all Oauth scopes, as I don't really understand what I need, and then added two test users. one is my the same google account owning the project, and another one I have.</li>
  </ol>
  <p>Publishing status is <strong>Testing</strong></p>
  <ol start="3">
  <li>In the script editor: deployed -&gt; test deployments clicked install and done.</li>
  </ol>
  <p>I'm not sure what to expect now..
  <a href="https://developers.google.com/workspace/add-ons/how-tos/testing-gsuite-addons#install_an_unpublished_add-on" rel="nofollow noreferrer">this link</a> says testing users (I assume there are the ones I added on the <em>OAuth consent screen</em> needs read access.
  My question:</p>
  <ol>
  <li>How to grant read access, and to whom exactly?</li>
  <li>After granting, what's next? how the granted users can get the addon?</li>
  </ol>