Documentation

What to Do When (-1) Page Error Returns After Payment

Transaction Error Codes, What causes them, and What you can do about it

What is error "40001134 : Authentication failed" and what do you do if you encounter this error?

What to do if your error log show "the currency is not accepted by the merchant"

Is ePDQ / Barclaycards down? where to check the system status of your payment provider?

Transaction has been denied : Payment refused by the financial institution

ePDQ NCERROR: - Data validation error

What is unknown order/1/r and how do you resolve it?

How to resolve AG Status check failed?

Does your ePDQ plugin support SCA and 3D secure (Strong Customer Authentication)?

What to do when you've received the email from ePDQ about "We're activating 3D Secure on your Smartpay Checkout (ePDQ) by 31 May 2021"

What is the ACS Challenge Simulator for?

The 'CPI emulator' will be deprecated on 31 July 2021, would your ePDQ plugin still work?

What does the error message “An error has occurred; please try again later. If you are the owner...” mean?

How to disable We are AG custom columns

Refunding an order returns "The data you entered is not correct" from the error log.

Why is AAVADDRESS missing from the ePDQ dashboard and how to resolve it?

Error code: Merchant type not active

Error code of 414: URI Too Long response

ePDQ NCERROR: - Card type not active

Enable deeper debugging

Enabling Direct Https - Server to Server for WPEngine

How to make PluginsUs.net product like WOOF - WooCommerce Products Filter plugin compatible

How do we resolve Direct HTTP server-to-server request issues?

How to resolve conflict with WordPress Events Calendar Pro by Tribe

Transaction is unsuccessful due to a SHA-Out issue

Security check fail.

Transaction verification error

Important notices(HTTPS-related)

Error codes