You would have received an email titled from noreply@changiairport.com ➡️ Click on Activate Okta Account
You will redirected to this page. Click on the Set up button.
Set up a strong password ➡️ Next
Download one of the Authenticators e.g., Google or Okta. Once done, click on the Set up button.
You will be scanning this QR code on your authenticator. In the example below e.g.. Google Authenticator, click on the + button and scan the QR code on the screen.
You will now see that the latest entry cag.okta.com website has been added to your Authenticator. There will be a code generated beneath it.
Input the code on your authenticator in the Okta page ➡️ Continue. You will be redirected to the Okta platform where you can access all the various applications.