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Error pages

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Well written error pages transform a potentially frustrating user experience into a clear, helpful one using simple and empathetic words to explain the problem and guide users to the next step.

Error pages template​

We follow these templates when creating our main error pages. Although some of the call-to-action examples are use case-dependent and not always technically feasible, aim for ensuring users can move forward from the error page.

HTTP codeHeadingDescriptionActions
400Bad requestFailed to process the request. Check your request and try again.Go back
Try again
Open homepage
401UnauthorizedAuthorization is required to access this page. Check your credentials and try again.Log in
Go back
Try again
403Access forbiddenUse case 1: You do not have access to this page. Contact your administrator for access.Open homepage
Go back
Use case 2: You do not have access to this page. Request access here or return to homepage.Request access
Go back
Open homepage
404Not foundWe’re not able to find that page. It may have been deleted or moved.Report issue
Open homepage
Search app
500Internal server errorThis page is not available right now. Try refreshing the page or try again later.Reload
Go back
Open homepage

General rules​

Use the official code and definition so users can search for code terms and information themselves.

  • 401 Unauthorized
  • 401 Unlawful

Use language suitable for all target users, including non-native English speakers.

  • This page is not available right now. Try again later.
  • An unforeseen server-side condition prevented the fruitful processing of your request. This indicates an issue within our infrastructure, not a client-side input error.

Avoid jokes, memes, emojis or casual wording in error pages for industrial applications.

  • 401 Unauthorized
  • Hold on! VIP access only! 🎩✨

Use sentence casing within the description with minimal punctuation and formatting.

  • There is an error on this page. Try again later.
  • There is an ERROR on this page! Try again later.

Dos and Don’ts​

  • Do give users a way out so the error page is not a dead end with only “Try again.” or “Try again later.”
  • Do adapt your recommended actions depending on your use case and what is technically possible
  • Don’t say your team is working on a solution to the error unless this is true