84

Any legal or financial data input must be reversible, validated for input errors, or include a mechanism for reviewing, confirming, or correcting information before submission.

WGAC 2 criterion	3.3.4 Error Prevention (Legal, Financial, Data) (AA)
Category	Forms and Inputs
ACT Rules

WCAG 2 criterion

3.3.4 Error Prevention (Legal, Financial, Data) (Level AA)

Tools and requirements

Manual Evaluation

Test procedure

This criterion is specific to forms that request payment. If one of these forms is encountered, attempt to fill out as much of the form as possible. Do not submit actual payment information unless you are provided sample data and are instructed to use it as part of the site or product you are evaluating..

Any sort of form that accepts legal or financial data must meet one of the following requirements:

The form submission is reversible. There exists an accessible method of canceling or editing the submission so that any errors can be corrected.
The form submission is checked and verified for accuracy. Upon submission, there is a confirmation screen that is presented to the user before full submission which includes a review of all of the form fields that were filled out.
The form submission has a method of reviewing, confirming, or correcting information before submission. This can be a checkbox that must be ticked affirming that the user has checked their inputs and is fully confident. It could also mean that the form offers up a way of going back to a previous spot in the form to edit responses that the user did not intend to input.

AI Prompt

Create a PHP class in the namespace "App\Services\AccessibilityAnalyzer\GuidelineRules"
that extends "App\Services\AccessibilityAnalyzer\GuidelineRuleRunner" and is called "Guideline84" that has a function with the signature "protected function findApplicableElements(Crawler $crawler): Crawler". The base class includes the function "protected function isElementIncludedInAccessibilityTree(\DOMNode $element): bool" for determining if an element is included in the accessibility tree.

Web accessibility guideline:

## Any legal or financial data input must be reversible, validated for input errors, or include a mechanism for reviewing, confirming, or correcting information before submission.

### WCAG 2 criterion

3.3.4 Error Prevention (Legal, Financial, Data) (Level AA)

### Tools and requirements

* Manual Evaluation

### Test procedure

This criterion is specific to forms that request payment.  If one of these forms is encountered, attempt to fill out as much of the form as possible.  **Do not submit actual payment information** unless you are provided sample data and are instructed to use it as part of the site or product you are evaluating..

Any sort of form that accepts legal or financial data must meet **one** of the following requirements:

* The form submission is reversible.  There exists an accessible method of canceling or editing the submission so that any errors can be corrected.  
* The form submission is checked and verified for accuracy.  Upon submission, there is a confirmation screen that is presented to the user before full submission which includes a review of all of the form fields that were filled out.  
* The form submission has a method of reviewing, confirming, or correcting information before submission.  This can be a checkbox that must be ticked affirming that the user has checked their inputs and is fully confident.  It could also mean that the form offers up a way of going back to a previous spot in the form to edit responses that the user did not intend to input.

Web Accessibility Reviews

AI Chat

AI Assistance Chat

AI Response

Debugging info

84

Any legal or financial data input must be reversible, validated for input errors, or include a mechanism for reviewing, confirming, or correcting information before submission.

WCAG 2 criterion

Tools and requirements

Test procedure

AI Prompt