When a transaction is declined by the PSP and sent over to Flex with POST /evaluate, the response will be either APPROVED, DECLINED or CHALLENGE.

Unlike the Standard CIT integration, the Advanced integration can rescue transactions that require a CHALLENGE.

CHALLENGE status is returned when the transaction could be rescued by Flex if some additional/corrected information are provided (e.g.: CVV, billing address).

Example of challenge: CVV was incorrect.
Transaction can be rescued by customer direct input.

Overview

The UI Widget is embedded on the checkout page and invoked after a decline.

1. Embed UI Widget

The snippet to embed the UI Widget can be found in your Sandbox account. Developers > Sites > View/Edit > UI configuration


`mid`	Your Flex Merchant Identification Number. Get your Mid
`siteId`	Unique id for each of your websites. If you are implementing Flex on several websites, make sure that UIWidget snippet contains the right `siteId`.

❗️
Content Security Policy
If you use CSP (Content Security Policy) headers on your site, you must allow the "*.flex-charge.com" in connect-src directive for full functionality based on your host configuration.
Content-Security-Policy: connect-src 'self' https://*.flex-charge.com;

2. Invoke UI Widget

Call InitUI() when a declined transaction was sent to Flex.

Instead of showing the decline page to the customer, invoke initUI().

Make sure to also set the success/fail urls, the UI Widget will take care of redirecting the customer to the right page.

<script>
    window.addEventListener('load', function() {
            window.UIWidget.InitUi({
                successUrl: 'https://your-site-success-page',
                rejectUrl: 'https://your-site-decline-page',
                cancelUrl: 'https://your-site-cancel-page',
            });
        });
</script>

You are using callbacks instead of redirections?

Events listeners

The UI Widget allows adding events, to which you can register easily, by calling .on(eventName, callbackFunction) on your Widget instance.

Event Name	Description
success	Event triggers if a customer clicks on the "Ok" button on the success popup.
decline	Event triggers if a payment was rejected or if a customer clicks the "Ok" button on the decline popup.
cancel	Event triggers if a customer clicks on the "Close" button.

UIWidget.on("success", () => {
  console.log("Do something");
});

Events can be removed.

UIWidget.removeEvent("success")

Widget initialization argument object fields

How to pass additional information to the UI Widget during initialization.

You can set additional fields for argument object when you trigger InitUi method. This information is essential for the UI Widget to function properly and to provide the user with a seamless payment experience.

Name	Type	Required	Description
orderSessionKey	guid/uuid	optional	Current order session unique key.
successUrl	string	optional	Url to redirect to success page.
rejectUrl	string	optional	Url to redirect to decline page.
cancelUrl	string	optional	Url to redirect to cancel page.

UIWidget.InitUi({ 
  successUrl: 'https://your-site-success-page',
  rejectUrl: 'https://your-site-decline-page',
  cancelUrl: 'https://your-site-cancel-page',
});

3. Update the order status

When using the UI Widget, you will get a async response. The UI WIdget will be long polling for Flex response in real time, but the definitive order status must be retrieved on the server side.

This can be done in two ways:

POST /outcome

Subscribe to the ORDER COMPLETE webhook.