# WCAG 2.2 – 2.5.4 Motion Actuation

- Level: A
- Principle: 2 Operable
- Guideline: 2.5 Input Modalities
- Introduced in: WCAG 2.1

## What the rule requires

Functions triggered by shaking or tilting the device are also available as a button – and motion control can be turned off.

## How to get it right

Always offer an Undo button alongside “shake to undo”.

## Who benefits

- People with motor disabilities

## Sources

- [This rule on wcag.dehl.net](https://wcag.dehl.net/en/wcag/2-5-4/)
- [Official W3C explanation](https://www.w3.org/WAI/WCAG22/Understanding/motion-actuation)
- [Techniques (WCAG Quick Reference)](https://www.w3.org/WAI/WCAG22/quickref/#motion-actuation)

_Plain-language explanation. Only the original W3C text is normative._