What controls are in-scope of WCAG 3.3.2 Labels or Instructions?

1. What is labels or instructions?
2. What is the purpose of 3.3 3 error suggestion?
3. What is the tester trying to determine when testing 3.2 2 on input?
4. What are the WCAG 2.1 guidelines?

What is labels or instructions?

Instructions or labels may also specify data formats for data entry fields, especially if they are out of the customary formats or if there are specific rules for correct input.

What is the purpose of 3.3 3 error suggestion?

The intent of this Success Criterion is to ensure that users receive appropriate suggestions for correction of an input error if it is possible.

What is the tester trying to determine when testing 3.2 2 on input?

The intent of this Success Criterion is to ensure that entering data or selecting a form control has predictable effects. Changing the setting of any user interface component is changing some aspect in the control that will persist when the user is no longer interacting with it.

What are the WCAG 2.1 guidelines?

Web Content Accessibility Guidelines (WCAG) 2.1 defines how to make Web content more accessible to people with disabilities. Accessibility involves a wide range of disabilities, including visual, auditory, physical, speech, cognitive, language, learning, and neurological disabilities.