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When things go wrong, you want to be sure to send the right messages to your audience. By default, Curator has error pages that will let users know when they don’t have access, they visit a broken link, or a system is down. Communicating exactly what you’d like in these situations can be made even easier by sending your users to a custom-made error page. NOTE: You must create a page first before setting it to your error page

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Setting up “Not Found” or “Access Denied” Pages

  1. Login to the backend of your Curator instance (e.g. http://curatorexample.com/backend).
  2. Navigate to the Settings > Curator > Portal Settings section from the left-hand menu.
  3. Click on the “General” tab and expand the “Error Pages” section.
  4. Using the dropdown, select a page from the list of pages you have created on Curator. You can set two pages here:
    • Access Denied (403) - Displays when a user does not have access to a specific link on Curator.
    • Not Found (404) - Displays when a user visits a link that does not exist on Curator, or visits an old deleted/moved link.
  5. After making your selection from these dropdowns, save the Settings page.
NOTE: The Access Denied page is a portal-wide setting. Curator does not support per-Dashboard or per-group overrides for this page, so the same Access Denied page displays for every restricted link regardless of which Dashboard or user group triggered it. As a best practice, create a single custom page with general access-request guidance (for example, instructions for contacting an administrator to request access) rather than Dashboard-specific messaging. For more context, see the Pages Overview and Frontend User Permissions documentation.

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Setting up “Tableau Server Down” (503 error) Page

Occasionally your Tableau Server may go down for maintenance reasons, or even unplanned issues. In this case it’s helpful to tell your users that things will be back shortly, and redirect them to useful resources. Follow the steps below to ensure your custom page displays when your Tableau Server is unavailable.
  1. Login to the backend of your Curator instance (e.g. http://curatorexample.com/backend).
  2. Navigate to the Settings > Tableau > Tableau Server Settings section from the left-hand menu.
  3. From the “General” tab expand the “Errors” section.
  4. Using the “Tableau 503 Error Page” dropdown, select a page from the list of pages you have created on Curator.
  5. After making your selection from this dropdown, save the Settings page.

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Troubleshooting

If you have configured a custom Access Denied (403) or Not Found (404) page but users are still seeing the default Curator error page instead of being redirected to your custom page, work through the steps below.

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Verify Your Curator Version

A bug in earlier Curator releases could prevent custom error pages from being saved or applied correctly. Confirm that your instance is running Curator version 2026.04-05 or later, where this issue was fixed. The version is shown in the backend under Settings > Curator > System Upgrade, or to the right on the backend home page.

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Confirm the Page Is Still Selected

  1. Navigate to Settings > Curator > Portal Settings and expand the “Error Pages” section under the “General” tab.
  2. Verify that your custom page is still selected in the Access Denied (403) or Not Found (404) dropdown. If the dropdown is empty, the page may have been deleted or renamed — re-select it and save.
  3. Open the page itself under Content > Pages and confirm it still exists and is published.

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Rule Out Browser Caching

Browsers can cache error responses, which may make it appear that the custom page is not being served even after the configuration is correct. Open a private/incognito browser window and revisit the URL that triggers the error to confirm the custom page is displayed for a fresh session.