If you or a customer see the warning: Security check fail.
You need to check that you have enabled COMPLUS as a parameter to be sent back (We use this to send some data to and from the ePDQ system).
Login to the ePDQ back office and navigate to here: Configuration > Technical information > Transaction feedback.
You will find the setting under the Dynamic e-Commerce parameters section (in blue)
Find COMPLUS in the available section and click the right arrow to enable it.
Was this helpful?
Our team are on hand to provide fast, helpful and professional support.