title: using #define macro in okta
body: <p>I use ngrok to test my flask app with OKTA. For which my ngrok public URL gets changed time to time. I need to change my OKTA application integration setting based on the current URL as given below</p>
  <pre><code>Single Sign On URL  http://4e4f-103-97-210-83.ngrok.io/saml/sso/example-okta-com
  
  Recipient URL  http://4e4f-103-97-210-83.ngrok.io/saml/sso/example-okta-com
  
  Destination URL http://4e4f-103-97-210-83.ngrok.io/saml/sso/example-okta-comAudience 
  
  Restriction  http://4e4f-103-97-210-83.ngrok.io/saml/sso/example-okta-com
  </code></pre>
  <p>it is very tedious jobs to change URL everywhere when there is only change in string &quot;4e4f-103-97-210-83&quot;</p>
  <p>is there any macro facility to define in OKTA app integration something like below</p>
  <pre><code># url_part    4e4f-103-97-210-83
  http://${url_part}.ngrok.io/saml/sso/example-okta-com
  </code></pre>
  <p>I just need to change url_part macro based on ngrok output, and it is good to go.
  Any idea?</p>