title: Error code 400 on generating OAuth 2 SASL string
body: <p>I have generated the following SASL string FOR OAuth 2:</p>
  
  <blockquote>
    <p>user=designadmin@mydesign.mygbiz.com^Aauth=Bearer 
    ya29.AHES6ZTtYOu0NR0vAYbrvKZNcHJPuZEpr4Hk3W3dXcXFQ88^A^A</p>
  </blockquote>
  
  <p>Then i encoded it and sent the encoded string like this:</p>
  
  <blockquote>
    <p>MSB AUTHENTICATE XOAUTH2 <em>encoded string</em></p>
  </blockquote>
  
  <p>But i get error response as:</p>
  
  <blockquote>
    <p>{"status":"400","schemes":"Bearer","scope":"<a href="https://mail.google.com/" rel="nofollow noreferrer">https://mail.google.com/</a>"}</p>
  </blockquote>
  
  <p>What does this error mean and how can i correct it?</p>