Add page-level errors across admin UI

[jpople]

Ticket ENG-2244

Description Of Changes

Adds error pages to many/most pages in the admin UI if the primary query fails.

Also some updates to error page component:

• adds default error message
• shows "reload" action by default
• adds "show detail" for detailed error message

Pre-Merge Checklist

• Issue requirements met
• All CI pipelines succeeded
• CHANGELOG.md updated
  • Add a db-migration This indicates that a change includes a database migration label to the entry if your change includes a DB migration
  • Add a high-risk This issue suggests changes that have a high-probability of breaking existing code label to the entry if your change includes a high-risk change (i.e. potential for performance impact or unexpected regression) that should be flagged
  • Updates unreleased work already in Changelog, no new entry necessary
• UX feedback:
  • All UX related changes have been reviewed by a designer
  • No UX review needed
• Followup issues:
  • Followup issues created
  • No followup issues
• Database migrations:
  • Ensure that your downrev is up to date with the latest revision on main
  • Ensure that your downgrade() migration is correct and works
    • If a downgrade migration is not possible for this change, please call this out in the PR description!
  • No migrations
• Documentation:
  • Documentation complete, PR opened in fidesdocs
  • Documentation issue created in fidesdocs
  • If there are any new client scopes created as part of the pull request, remember to update public-facing documentation that references our scope registry
  • No documentation updates required

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Review	Updated (UTC)
fides-plus-nightly	Ready	Preview, Comment	Jan 27, 2026 5:35pm

1 Skipped Deployment

Project	Deployment	Review	Updated (UTC)
fides-privacy-center	Ignored		Jan 27, 2026 5:35pm

[greptile-apps]

Greptile Summary

This PR systematically adds error handling across the admin UI by implementing page-level error pages when primary queries fail. The changes follow a consistent pattern where pages check for errors from their data-fetching hooks and display the ErrorPage component with appropriate error messages.

Key improvements to ErrorPage component:

• Added defaultMessage parameter with sensible default
• Made showReload action enabled by default
• Made actions prop optional
• Added collapsible "Show details" section for error information
• Added data-testid for testing

Implementation pattern:
Most pages follow the same clean pattern:

1. Extract error from the data-fetching hook
2. Early return with <ErrorPage> if error exists
3. Provide contextual defaultMessage for the specific page

Properties page refactoring:
The properties page was refactored from a callback-based error handling pattern to match the standard pattern used throughout the codebase, improving consistency.

Test coverage:
Added cypress test for action center fields error handling to verify the error page displays correctly.

Confidence Score: 5/5

• This PR is safe to merge with minimal risk
• The changes are well-structured and consistent across all files, following a standard error handling pattern. The refactoring improves code consistency (properties page), enhances UX with better error messaging, and includes test coverage. No logical issues or security concerns identified.
• No files require special attention

Important Files Changed

Filename	Overview
clients/admin-ui/src/features/common/errors/ErrorPage.tsx	Enhanced error page component with default message, collapsible details, and automatic reload action
clients/admin-ui/src/pages/systems/index.tsx	Added error handling for systems page using standard pattern
clients/admin-ui/src/pages/properties/index.tsx	Refactored to use standard error handling pattern, extracting error from hook
clients/admin-ui/src/features/properties/PropertiesTable.tsx	Removed callback-based error handling, now returns error from hook for consistency
clients/admin-ui/src/pages/integrations/[id].tsx	Added error handling with custom action to return to integrations list
clients/admin-ui/src/features/data-discovery-and-detection/action-center/fields/page.tsx	Added error handling for action center fields with appropriate error message

[greptile-apps]

_{51 files reviewed, 2 comments}

_{Edit Code Review Agent Settings | Greptile}

[gilluminate]

Approved with a couple of nit picks. Nice work!