title: Unable to give Billing Administrator role to my account in GCP
body: <p>I would like to setup Budget and Alert for one of the client project. I think I have all the relevant roles like owner, project IAM admin, Organization admin but still I am unable to give/get Billing Administrator role</p>
  <p>Attached screenshot with list of roles I have
  <a href="https://i.stack.imgur.com/s7aXF.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/s7aXF.png" alt="enter image description here" /></a></p>
  <p>Attached another screenshot where I am still not getting</p>
  <blockquote>
  <p>Billing Account Administrator</p>
  </blockquote>
  <p>and I see only</p>
  <blockquote>
  <p>Project Billing Manager</p>
  </blockquote>
  <p><a href="https://i.stack.imgur.com/rodi3.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/rodi3.png" alt="enter image description here" /></a></p>
  <p>I followed this documentation (<a href="https://cloud.google.com/iam/docs/job-functions/billing" rel="nofollow noreferrer">https://cloud.google.com/iam/docs/job-functions/billing</a>) and it clearly says CEO (who is Organization Administrator) can grant Office Manager, <strong>Billing Account Administrator</strong> role. But here I am unable to assign Billing Account Administrator role to myself. Can any one guide me how should I proceed to set Budgets &amp; Alerts? Also I have enabled Cloud Billing API</p>