Is it possible to use Relay Response with the Hosted Form? (SIM)

[tehStig]

 Is it possible to have the hosted SIM form call a custom URL (passed in with the form) when the credit card transaction is completed?

I've tried using x_relay_url, but get an error: "An error occurred while trying to report this transaction to the merchant." When I add this field to the form

[tehStig]

I've tried using x_relay_url, but get an error: "An error occurred while trying to report this transaction to the merchant." When I add this field to the form

[RaynorC1emen7]

have you read this?

http://community.developer.authorize.net/t5/The-Authorize-Net-Developer-Blog/Relay-Response-Basics-a...