- Success Criterion 3.3.4
- Conformance level AA
One-Click Order Placed With No Chance to Review It First
3.3.4 — Error Prevention (Legal, Financial, Data)
Scenario
Setting
An email client's compose window
What’s wrong
One-click purchase/submission of binding orders with no review step, no confirm checkbox, and no cancel/undo window.
Example
<button onclick="submitPayment()">Pay Now</button> <!-- no review step -->Why it matters
Everyone in legal, financial, or data-changing flows — especially people prone to input mistakes.
How to test
Complete a one-click purchase flow: if there's no review step and no confirm checkbox before the order is placed, it fails.
How to fix
The submission must be reversible, checked with a chance to correct, or confirmed through an editable review step.
<button onclick="showReviewStep()">Review Order</button><!-- review screen --> <button onclick="submitPayment()">Confirm Payment</button>Legal, financial, or data-deleting submissions need a chance to review, correct, or confirm before they're final.
Outcome
On an email client's compose window, this barrier is gone for everyone in legal, financial, or data-changing flows — they reach the same outcome without extra effort.
Who is affected
Everyone in legal, financial, or data-changing flows — especially people prone to input mistakes.
Learn more
- Understanding Understanding document (opens in a new tab)
Related scenarios
- Binding Purchase Submitted With No Review Step Beforehand
- Permanent Data Deletion With No Confirmation or Undo
- Legal Commitment Submitted With No Review-and-Confirm Step
- Review Page That Isn’t Actually Editable Before Final Submission
- Financial Transfer Form That Never Confirms the Entered Details
- Exam Answer Locked In Instantly With No Chance to Review