3.3.4 Error Prevention (Legal, Financial, Data)
Conformance level: AA
Criterion released in WCAG version: 2.0
Official description of the success criterion
For Web pages that cause legal commitments or financial transactions for the user to occur, that modify or delete user-controllable data in data storage systems, or that submit user test responses, at least one of the following is true:
- Reversible: Submissions are reversible.
- Checked: Data entered by the user is checked for input errors and the user is provided an opportunity to correct them.
- Confirmed: A mechanism is available for reviewing, confirming, and correcting information before finalizing the submission.
What to do?
Reduce the risk of input errors for critical data.
Why is it important?
Helps users avoid costly mistakes.