2.2.4 Interruptions (Level AAA) — WCAG 2.1
WCAG 2.1 Success Criterion 2.2.4 Interruptions (Level AAA): what it requires, a common e-commerce accessibility failure, and how to fix it.
This is educational technical reference content, not legal advice. It explains what WCAG 2.1 requires and how to meet it — not whether a specific site carries legal risk. Compliance with WCAG, the ADA, or any other accessibility law or standard is a legal determination; consult qualified counsel for legal risk assessment.
WCAG 2.1 guidelines hub → Operable → 2.2.4 Interruptions
2.2.4 Interruptions (Level AAA)
What it requires: Users can postpone or suppress non-emergency interruptions (alerts, notifications, content updates) except where the interruption involves an emergency.
Common failure: A live-updating “12 people are viewing this item” or stock-countdown notification repeatedly steals focus or re-renders content while a user is filling out a form.
Fix it: Update non-critical live content without moving focus or disrupting in-progress input, and let users dismiss or mute this class of notification.
In 2.2 Enough Time: ← 2.2.3 No Timing · 2.2.5 Re-authenticating →
This is educational technical reference content, not legal advice. It explains what WCAG 2.1 requires and how to meet it — not whether a specific site carries legal risk. Compliance with WCAG, the ADA, or any other accessibility law or standard is a legal determination; consult qualified counsel for legal risk assessment.
This page was drafted with AI assistance and reviewed by a person for accuracy before publication.