WCAG 3.3.1
Level A
Understandable
3.3.1 Error Identification
Input errors are identified and described to the user in text.
What 3.3.1 Error Identification means
Users know which field failed and why.
How to test
Submit a form with errors and confirm each error is described in text and linked to its field.
How to meet it
Show specific text error messages, associate them with fields, and announce them to assistive tech.
Need help meeting 3.3.1?
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Official reference: Understanding 3.3.1 Error Identification (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
3.3.2 Labels or Instructions
3.3.3 Error Suggestion
3.3.4 Error Prevention (Legal, Financial, Data)
3.3.7 Redundant Entry
3.3.8 Accessible Authentication (Minimum)