What this criterion requires
For pages that create legal commitments, financial transactions, or modify/delete user data, submissions must be reversible, checked for errors with a chance to correct, or confirmed via a review step.
Who it helps
Everyone - mistakes in these flows have real consequences; people with cognitive and motor disabilities make them more often.
Example: fails vs passes
Tapping "Buy" charges the card immediately - no review, no undo.
An order-review step before confirmation, and a cancellation window after it.
Legal, financial and data-destroying actions must be reversible, checked or confirmed.
How to meet and fix it
- Add an order-review step before final purchase confirmation
- Confirm destructive actions and/or provide an undo window
- Validate and let users correct before committing
Common failures auditors find
- One-click irreversible deletion
- Checkouts that charge without a review screen
Automated scanning catches a share of these instantly - run a free check - and a manual audit covers the judgement calls a tool cannot make.
Sources
- W3C, Understanding 3.3.4: Error Prevention (Legal, Financial, Data) - w3.org/WAI
- W3C, How to Meet 3.3.4 (quick reference) - w3.org/WAI/quickref
Last updated . Reviewed by the EqualWeb accessibility team.
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