This is what happens when your customer or client makes a purchase or payment on your website.
The customer adds items to their basket and goes to the checkout.
The customer fills up his personal information and selects the ePDQ payment option.
Note: The above screenshot shows how the ePDQ checkout looks when the test mode is enabled in the plugin. The test mode labels will not be visible if you disable the test mode from the plugin settings. You can use the test cards mentioned on the checkout for testing a transaction, or you can take a look at the test cards available here.
Barclaycard puts the transaction through the card check schemes and sends it to the card issuer for fraud checks (i.e., 3D Secure). Your customer will be redirected offsite for these fraud checks and then redirected back to your website after completing the checks.
The transaction is complete in a matter of seconds.