title: Multipart Form - 400 Bad Request
body: <p>I'm having some trouble with a an API request I'm trying to make. Here is my POST request URL:</p>
  <p><a href="https://platform.devtest.ringcentral.com/restapi/v1.0/account/%7E/extension/%7E/fax" rel="nofollow noreferrer">https://platform.devtest.ringcentral.com/restapi/v1.0/account/~/extension/~/fax</a></p>
  <p>Request content type: multipart form</p>
  <p>Header name and value:</p>
  <p><a href="https://i.stack.imgur.com/Kbg1I.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Kbg1I.png" alt="enter image description here" /></a></p>
  <p>Review:</p>
  <p><a href="https://i.stack.imgur.com/MEqSh.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/MEqSh.png" alt="enter image description here" /></a></p>
  <p>Any idea why this may be happening? Thank you all!</p>