In plain English
Some actions are hard to take back: buying something, agreeing to terms, deleting an account. A slip there costs real money or data. This rule says that for those high-stakes actions you must do at least one of three things: make it reversible, check it for errors and let people fix them, or ask them to review and confirm before it is final.
For a store, the obvious case is checkout: show an order-review step before the charge.
Who this is for
- People with cognitive, motor, or vision differences, who are more prone to input slips.
- Everyone, who occasionally fat-fingers a quantity or an address.
How to check and fix it yourself
Walk through your checkout and any account/data-deletion flows. Before the irreversible step, is there a review or confirmation?
Checkout → an order-review screen (items, address, total) → Confirm & pay. ✓
Delete account → "Are you sure? This can't be undone." confirmation. ✓
Financial action that commits instantly with no review. ✗Where we can help
Most checkouts have a review step, but custom flows, one-click actions, and account changes sometimes skip it. We check your high-stakes flows for a review, confirm, or undo safeguard. It is a checkout-critical item you can spot in a self-check.