WCAG 3.3.3
Level AA
Understandable
3.3.3 Error Suggestion
When an input error is detected and a fix is known, a suggestion is provided.
What 3.3.3 Error Suggestion means
Users are told how to correct the mistake, not just that one occurred.
How to test
Trigger validation errors and confirm helpful correction suggestions appear.
How to meet it
Add specific guidance (e.g. "Enter a date as DD/MM/YYYY") to error messages.
Need help meeting 3.3.3?
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Official reference: Understanding 3.3.3 Error Suggestion (W3C)
More Understandable criteria
3.1.1 Language of Page
3.1.2 Language of Parts
3.2.1 On Focus
3.2.2 On Input
3.2.3 Consistent Navigation
3.2.4 Consistent Identification
3.2.6 Consistent Help
3.3.1 Error Identification
3.3.2 Labels or Instructions
3.3.4 Error Prevention (Legal, Financial, Data)
3.3.7 Redundant Entry
3.3.8 Accessible Authentication (Minimum)