29 votes
Accepted

Necessity of writing the number "404" on a 404 page?

Include the 404 — problem solvers will appreciate it There’s no better or more concise way to communicate the nature of the problem to experts who may have to help your user. “404” on your error pages ...
Tim Grant's user avatar
  • 3,941
24 votes

Should disabled buttons give feedback when clicked?

In the end, both ways lead to the same result. Whether it's an inline error or maybe a bubble with feedback, the user gets to know why he can't proceed (which adheres to visibility of system status). ...
Big_Chair's user avatar
  • 6,825
18 votes

Should I use error message or warning message for optional field validations?

In this case since the user has tried to upload an invalid format, regardless that it is optional, it counts as an error. Warnings and Errors can be defined as such: WARNINGS should appear when ...
RobbyReindeer's user avatar
16 votes

How do I handle wrong input in a multiple input field?

I'm not sure what your tech stack is, but you could use an input that the Return key quickly turns it into a taglike pill. Here's a bootstrap example showing this with accompanying code (It's a tiny ...
Mike M's user avatar
  • 24.7k
11 votes

Should disabled buttons give feedback when clicked?

If this weren't mobile, I'd say it would be better to have a message shown next to the disabled button saying Please fill in the remaining required fields (marked with *) or some such (...
T.J. Crowder's user avatar
8 votes

Necessity of writing the number "404" on a 404 page?

As you say "I don't think the average user knows or cares what 404 signifies" so it doesn't matter to him. But to the technical user the 404 gives extra information. So if the decision is between ...
Alvaro's user avatar
  • 16.8k
8 votes

How do I handle wrong input in a multiple input field?

Taking limitation into account: plain html input (no colors, no tokens) I would suggest to: Increase field size from 20% to bigger value because user will not be able to see entire value of the input ...
Jurijs Kovzels's user avatar
7 votes

Should disabled buttons give feedback when clicked?

This is how the Google sign-up process does it. It should be very similar to your process. Note that the primary button is always enabled, it only changes its function! You are presented with a ...
knallfrosch's user avatar
  • 2,088
6 votes

How to manage usability with multiple http error messages?

If you want to show only one error; note: I wouldn't recommend this option, it removes a lot of important information. Show the first error the app encounters. That way users can chronologically try ...
PixelSnader's user avatar
  • 8,321
6 votes

What should an error state for a number value be?

You can't show a numerical value because that would imply a value, which is a wrong value by definition. I'd better say you would display a message saying something like "error getting number" with a ...
colmcq's user avatar
  • 8,240
5 votes
Accepted

Which principle is violated if only one error message is shown at a time?

Two heuristics come to mind. This rule from Jakob Nielsen's 10 usability heuristics https://www.nngroup.com/articles/ten-usability-heuristics/ "Visibility of system status - The system should always ...
Jeremy Franck's user avatar
5 votes

error handling in existing system

There's a lot to find on error handling online. Take a look at this great article on error message guidelines. The guidelines for creating effective error messages have been the same for 20 years....
Nick Groeneveld's user avatar
5 votes

Error message in login

Usually login error messages avoid specifying whether it was the username or password that was the problem. This is because they don't want to give away information to third parties on the correct ...
Franchesca's user avatar
  • 12.5k
4 votes

What are the best practices for saving? Incompatible errors vs user-input error?

There are many ways, and it can get confusing. (Philosophical discussion here first, my answers/opinion/perspective nearer to the bottom) If you have a long form, and the user gets to the bottom, ...
Mattynabib's user avatar
  • 3,491
4 votes

How should I handle errors due to not being logged in?

It's generally a good idea to avoid error situations. So, rather than showing an error message after the user clicks the Check Out button (or, even worse, navigating to a separate "error message" page)...
Ken Mohnkern's user avatar
  • 9,044
4 votes
Accepted

How to help users avoid making conscious mistakes?

Help avoid conscious mistakes by 'Previewing Results', 'Warning Before Errors are Made', and 'Supporting Undo' Previewing Results, Warning Before Errors are Made From the NNG article Preventing User ...
dennislees's user avatar
  • 11.6k
4 votes
Accepted

To report an error with expected functionality...or to not?

Be clear, honest, and consistent with your users. You're on the right track to be honest with your users. If you show an error, you have the opportunity to communicate the following: The user will be ...
Mike M's user avatar
  • 24.7k
4 votes
Accepted

How to manage usability with multiple http error messages?

Whats important for the user? As a user I want to know if something's not working and more important if something's not working I want to know why. Is it a problem from my side? Like no internet ...
Pectoralis Major's user avatar
4 votes

Should disabled buttons give feedback when clicked?

Going by the concept of 'informed decisions', it is always better to provide users with enough directions so that they do not make any mistakes instead of letting them find out that what they did was ...
Ren's user avatar
  • 3,196
4 votes

Why does front page of Google.com give no feedback when trying to search when nothing's entered?

Just a hunch on my part - I have no involvement in Google: It's to emphasize the simplicity of the interface. Google's homepage was designed to be super simple. At the time that was a bold move ...
Luke Griffiths's user avatar
3 votes

Should 404 page use different layout from the rest of the site?

Interesting question. I see what you mean. I definitely think having a separate layout has its advantages. Reasons: It breaks the flow the user is in and presents an error page. This is crucial ...
Swapnil Borkar's user avatar
3 votes

Displaying errors to a user - One at a time or all at once?

I'll agree with you, showing errors one by one could be really annoying and might have a negative impact on your business or users. A form is like a conversation with your users. Why not be a great ...
Adnan Khan's user avatar
  • 4,633
3 votes
Accepted

Feedback for invalid selection of the text

Train your users Start by letting your users know how to use the system, and define some common notices. For example: Explain the process Now, you can tell them that if they do something unexpected, ...
Devin's user avatar
  • 38k
3 votes

When should I validate that the password in a confirmation field matches the first password entered?

To answer your question directly, validation shouldn't wait for the user to be done, so much as it should wait to make logical sense. As guessed in the second part of your question, the passwords ...
marley's user avatar
  • 173
3 votes

Refreshing 500 error page

Provide clear next steps for the user. Start with thinking about the key workflow for a 500 page, i.e. what do you want to accomplish? A very typical 500 workflow is: Inform the user that something ...
tohster's user avatar
  • 41.1k
3 votes

How to tell users that s/he might be adding a duplicate record

I'm trying to understand why you would wan't to validate the First Name and Last Name of the records users are adding into the system. Basically, this doesn't appear as a valid scenario, because in ...
Dipak's user avatar
  • 16.2k
3 votes

How to tell users that s/he might be adding a duplicate record

Upon completing the form, bring up a notice indicating that similar contacts already exist in the system. Show a summary of each of those contacts, and allow the user to either select one of those ...
Michael Stroud's user avatar
3 votes

How to manage usability with multiple http error messages?

I agree with @PixelSnader. Here's how I suggest you can place it on the application -
Dipak's user avatar
  • 16.2k
3 votes
Accepted

How to tell a user about an error after clicking a button?

Like any other error, be clear to the user what happened and ideally give them a path to recovery if possible. You're focusing on the button state, but it sounds like what the user needs is the result ...
Mike M's user avatar
  • 24.7k
3 votes

Material design error message on top of a pop up

If the error (non-critical or otherwise) is related to the attempt to submit the pop-up form, and logically should be shown before the dialog is dismissed, then move the banner position to the pop-up ...
TripeHound's user avatar
  • 2,655

Only top scored, non community-wiki answers of a minimum length are eligible