WCAG 2.0 · Level AA · Understandable
WCAG 3.3.3 — Error Suggestion
When an input error is detected and a fix is known, suggest the correction.
WCAG 3.3.3 at a glance
Level AA · Principle: Understandable · Added in WCAG 2.0. Level AA is the conformance target for the ADA, EAA, and Section 508.
What it means
When an input error is detected and a fix is known, suggest the correction.
Who it helps
Everyone, especially cognitive users.
Common failures
- “Invalid date” with no example of the right format
How to meet WCAG 3.3.3
- Offer specific suggestions (expected format, valid options)
How to test it
Manual.