All WCAG criteria
WCAG 3.2.2 · UnderstandableLevel A

3.2.2On Input

Changing the setting of a UI component must not trigger a context change unless the user has been advised of the behavior beforehand.

Common failures

Patterns that fail this criterion.

  • 01Dropdown that submits the form on selection change
  • 02Checkbox that immediately navigates away
How to test

Testing approach: manual.

Manual — change every dropdown, checkbox, radio; confirm nothing unexpected happens.

How to fix

Remediation steps.

  1. 1

    Add an explicit Apply/Submit button

    Let users make all their selections, then commit.

  2. 2

    If immediate action is required

    Warn beforehand: "Changing this setting will reload the page."

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Related criteria

Often appears with…

WCAG 3.2.1 · Level A

On Focus

All 50 WCAG 2.1 Level A + AA success criteria explained.

View the full checklist