Customize the access denied error message
Users who are denied access to an app see a default error message in the Sign-In Widget. Customize the message if you want to change the text or add a link. Custom strings are rendered inside an error message, so keep the content brief and avoid special formatting.
Start this task
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In the Admin Console, go to .
 - Scroll to the Access denied error message panel, and then click Edit.
 - Select Use a custom error.
 - Enter the text that you want displayed to users. You can also add custom help links with your own URLs.
 - Click Save.
 
