Almost useless


Message stating "Failed to install updated." Title bar is "Microsoft AutoUpdate"

Source: Microsoft

An interesting example of an almost useless message.

The message tells me that it’s from “Microsoft AutoUpdate” – so at least I know it’s something to do with Microsoft.

It also tells me “Failed to install update.” This is less useful. What update? Why did it fail? What can I do about it?

Messages like this are very egocentric. Microsoft assumes that their application (or driver, or whatever it is that’s failed to update) is at the forefront of my mind and that I know what it is. But it isn’t and I don’t.

Messages like this are damaging to the brand. I see this one frequently, and it annoys me frequently, and each time I see it I like Microsoft less.

Error messages matter. They are an essential form of communication with the user. They say something important. In this case, the message is saying that Microsoft really doesn’t care what’s happened, and that I’m on my own.

Furthermore, the lack of a button means that I have to click the little “dismiss” icon at top left to get rid of the message.

Oddly enough, the only reason I turned on AutoUpdate for Microsoft products was that I was so annoyed by the dialog box prompting me to check for updates immediately after I’d completed a manual update.

Perhaps Microsoft can argue that the message “belongs” to the MacOS and is somehow Apple’s responsibility or fault.

The perfect error message


"An error message reading: "Hi, it appears you've previously Signed In to another Optus website using a Optus Mobile Number. Member Services is only available for Optus Internet users. If you are attempting to Sign In with your Optus Internet username, please click on the 'Logout' button in the top right of your screen."

Source: Optus

This error message is perfect because it does *everything* wrong.

An error message should:

  • Explain what happened
  • Explain why it happened
  • Enable you to fix the problem.

This message implies that the user had signed in with a mobile (cellphone) number. I hadn’t. Even if I had, it’s unclear why this should be a problem. The solution offered is to “Logout”.

An organisation should use consistent language. Here, we have “sign in” and “logout” – a clear indication that there is internal dysfunction and disconnection.

A key component of a trusted website is good grammar. Here we have “a Optus Mobile number” instead of “an Optus Mobile number” and “Member Services” treated as singular (“Member Services is only…”). Probably the rationale for the latter is that “Member Services” is an entity of some sort, but it’s clearly a case of the organisation speaking its language rather than that of the user.

The message also has two conflicted personas. The first is the one that opens with “Hi” – it’s the voice that Optus uses in its advertising, and even in its installation guides. When everything is fine, that tone can be acceptable, but when things go pear-shaped, it quickly sounds insincere, flippant or blatantly uncaring.

The internal focus is also apparent in the sentence: “If you are attempting to Sign In with your Optus Internet username…” which assumes that the user knows what an Optus Internet username is. I can only speak from my own experience, and I don’t know what it is (nor do I even have an Optus mobile phone number, so that part of the message is doubly confusing).

In fact, the whole message is so bizarre that the fact that the referenced “Logout” button “in the top right of your screen” does not in fact exist seems only incidental, a mere peccadillo amidst a multitude of other sins.


An online form showing the error "Your captcha result is wrong"

Source: Archilux (a lighting company)

Somebody sent me an email, entitled “WTF,” containing a copy of this error message, which states that “Your captcha result is wrong”.

They had no idea what the message meant. And why should they? “Captcha” is not a word in common usage among non-geeks. And the page, frustratingly, has no other reference to “captcha,” although it does have a mathematical challenge intended to weed out non-humans (and which, arguably among we geeks, is not a “captcha.”)

The problem is compounded by the fact that the field in error is at the bottom of the page, and not visible without scrolling.

The message is also rather hostile in tone. Telling users they have done something “wrong” is so 1970′s!

Error messages should say, in plain language, what happened, why it happened, and how to fix it.

Inhuman time scales

Error message reading" Error 302007: The 'From' date is earlier than 560 days from today's date. Please re-enter another date'"

Source: NAB (an Australian bank)

The most annoying aspect of this message is the reference to the date entered being “earlier than 560 days from today’s date,” which leaves the user with the task of figuring out a date that is less than 560 days in the past.

How hard would it have been to avoid the error by specifying the earliest date adjacent to the field itself? Or to specify the earliest date in the error message? Or to use a human-interpretable date limit like “2 years” (or even “a year and a half”).

The other faults with the message are relatively trivial in comparison:

  • The message begins with “Error 302007,” which is irrelevant to customers.
  • “From today’s date” is less clear than “in the past” (and is arguably ambiguous).
  • The word “re-enter” is less accurate and less clear than “enter”.






Bad action!

A message stating: "Bad action value. Please check your request and try again. (55006)Source: Qantas (

I don’t know what a “bad action value” is, but I do know I don’t want to see it when I’m booking a flight. I would guess that for many people, booking a flight involves a reasonably high level of emotional engagment and perhaps stress – not the time to be displaying obscure and unhelpful messages.

The code at the end (55006) would be inoffensive it it were appended to a plain language message, but when associated with this gibberish, it adds to the perception of complexity and things gone awry.