- Success Criterion 3.3.3
- Conformance level AA
Rejected File Upload With No Stated Size or Type Limits
3.3.3 — Error Suggestion
Scenario
Setting
A webinar platform's registration form
What’s wrong
File upload rejected without stating allowed types/size.
Example
<span class="error">Invalid input</span>Why it matters
People with cognitive disabilities and anyone stalled by vague validation messages.
How to test
Upload a rejected file: if the message doesn't state allowed types/size, it fails.
How to fix
The error message must tell the user how to fix the problem — the expected format, range, or valid options.
<span class="error">Enter a year between 1990 and 2026</span>Error text should suggest the fix — the expected format or valid range — not just flag that something's wrong.
Outcome
On a webinar platform's registration form, this barrier is gone for people with cognitive disabilities and anyone stalled by vague validation messages — they reach the same outcome without extra effort.
Who is affected
People with cognitive disabilities and anyone stalled by vague validation messages.
Learn more
- Understanding Understanding document (opens in a new tab)
Related scenarios
- Rejected Input With No Guidance on How to Fix It
- Invalid Entry Message With No Hint at the Expected Format
- Rejected Date Entry With No Explanation of the Expected Format
- Rejected Password With No List of the Unmet Requirements
- Taken Username With No Suggested Alternatives Offered
- Rejected Entry With No Suggested Near-Match From a Known List