Authorize.net Sim Not Working Anymore

When my customers go to pay they get sent to the following URL with an error: https://secure.authorize.net/gateway/transact.dll

The following errors have occurred.
(14) The referrer, relay response or receipt link URL is invalid.

Checking the response code I found this page and message: https://support.authorize.net/s/article/Error-14-The-Referrer-or-Relay-Response-URL-is-invalid

Important Note: AIM, SIM, and DPM are obsolete and in the process of being phased out. We strongly recommend that you use one of our modern connection methods to integrate with the Authorize.Net Payment Gateway. Visit our Developer Center and Upgrade Guide for more information on our current APIs.

Edited by

Nothing in Sytist to cause that. It might have something to do with the reply URL not having httpS.

In your Sytist admin click on Settings in the main menu. Then underneath the left menu click edit config file.

Change this line:

$setup['url'] = "http://".$_SERVER['HTTP_HOST']."";
TO:

$setup['url'] = "https://".$_SERVER['HTTP_HOST']."";
Notice we are adding a s to http.

BUT, won't work if you don't have a SSL/security certificate.

Try that and if it doesn't work and you DO have a SSL installed (httpS page) then you should change to the AIM option instead in Settings -> Checkout & Payment. They will stay on your site with that option.

Edited by

Thank you, Tim. It turned out that I needed to add an additional URL to my account in my Authorize.net settings.

Is a "modern connection method to integrate with the Authorize.Net Payment Gateway" on the roadmap for Sytist? Authorize is being cagey about when it will end support for the SIM and AIM integrations.

https://developer.authorize.net/api/upgrade_guide/

Edited by

It is something I have in my notes to look into.

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