In plain English
A few sites use device motion as a control: shake the phone to undo, tilt it to scroll a gallery. That excludes anyone who cannot move their device (it is mounted, or they cannot hold it steady), and it misfires for people with tremors. This rule says: if motion does something, also provide a normal on-screen button, and let people turn the motion trigger off.
Most stores never use this, so it often does not apply, but it is worth knowing.
Who this is for
- People who cannot move or hold a device steadily, or who use a mounted device.
- People with tremors, who trigger motion actions unintentionally.
How to check and fix it yourself
Does anything on your store respond to shaking or tilting the phone? If so, add a button that does the same thing, and a setting to disable motion input.
"Shake to undo" → also add an on-screen Undo button + a disable option. ✓
No motion features → not applicable.Where we can help
Motion controls are rare but occasionally arrive via a third-party app or a custom feature. We check whether any exist and confirm they have a conventional alternative and an off switch. It is one of the WCAG 2.1/2.2 checks.