Level AAWCAG 2.2
3.3.4 Error Prevention (Legal, Financial, Data)
For pages with legal commitments, financial transactions, or data modifications, submissions are reversible, checked, or confirmed.
Why it matters
Motor impairment
Tremor or mistaps can cause unintended submissions, so a confirmation step acts as a safety net.
Cognitive impairment
For users who have difficulty noticing input mistakes, a review screen before submission is crucial.
Legal and financial
For irreversible actions like purchases and contracts, confirming, correcting, or canceling is required by law in many jurisdictions.
All users
Anyone can make input mistakes. A confirmation step catches them before submission.
Live demo
Confirmation before submission
Sends immediately with no confirmation
Persona perspective
Yamamoto (55) — Parkinson's disease
I tap buttons by accident due to tremor. A confirmation screen lets me catch things like 'oh, the kanji in my name is wrong' before sending. Instant submission with no confirmation is genuinely scary.