Complete URL which calls up if payment has been unsuccessful. The URL may be called up only via port 443. This URL may not contain parameters: In order to exchange values between and shop, please use the parameter UserData.
Common notes:
- We recommend to use parameter "response=encrypted" to get an encrypted response by
Information for 3-D Secure:
- payssl.aspx / payNow.aspx: Please note that the URL is called via POST for 3-D Secure 2.x and via GET for 3-D Secure 1.x (e.g. in case of fallback). Therefore your system should check parameters for POST as well as for GET method.