A11ying with Sanna - Web Content Accessibility Guidelines a guide to the accessibility requirements
2 Operable

2.5.6 Concurrent Input Mechanisms

Conformance level: AAA
Criterion released in WCAG version: 2.1

Official description of the success criterion

Web content does not restrict use of input modalities available on a platform except where the restriction is essential, required to ensure the security of the content, or required to respect user settings.

What to do?

Ensure that functionality can be operated using different input methods concurrently.

Why is it important?

Provides flexibility for users who switch between input methods.

More about this criterion elsewhere