title: Okta: How to create usernames without email address?
body: <p>How can I create unique usernames, without email address?</p>
  
  <p>When I send curl request as below</p>
  
  <pre><code>curl -X POST \
    'https://xxxx.oktapreview.com/api/v1/users?activate=true' \
    -H 'accept: application/json' \
    -H 'authorization: SSWS xxxx' \
    -H 'content-type: application/json' \
    -d '{
    "profile": {
      "firstName": "Isaac",
      "lastName": "Brock",
      "email": "isaac@test.com",
      "login": "isaac1223"
    },
    "credentials": {
      "password" : { "value": "ddas4235sff" }
    }
  }'
  </code></pre>
  
  <p>I get response as below </p>
  
  <pre><code>{
    "errorCode": "E0000001",
    "errorSummary": "Api validation failed: login",
    "errorLink": "E0000001",
    "errorId": "oaeVuAktJ_ZSbGQbB_VfsuFlg",
    "errorCauses": [
      {
        "errorSummary": "login: User name must be in the form of an 
  email address (e.g. bob@nowhere.com)"
      }
    ]
  }
  </code></pre>
  
  <p>I want to keep different username than email address, how to achieve this in okta?</p>