https://community.developer.cybersource.com/t5/Integration-and-Testing/Silent-Post-URL-not-receiving-transaction-response-after/m-p/92513#M57849 <P>Hi everyone,<BR />I’ve integrated Authorize.Net with my website using SIM (Simple Integration Method) and set up a Silent Post URL to capture transaction data after payment success. However, even though payments are processed correctly, the Silent Post URL doesn’t seem to receive any data.</P><P>I've double-checked that:</P><P>The URL is publicly accessible over HTTPS</P><P>Firewall is not blocking Authorize.Net IPs</P><P>I’m using the correct format for the x_relay_url and have set it in the merchant settings</P><P>There are no entries in my server logs, which makes me think the POST isn’t hitting the server at all. Has anyone faced this recently or know of a way to log or test the Silent Post directly?</P> Fri, 25 Jul 2025 08:10:51 GMT usmanraja054 2025-07-25T08:10:51Z https://community.developer.cybersource.com/t5/Integration-and-Testing/Silent-Post-URL-not-receiving-transaction-response-after/m-p/92513#M57849 <P>Hi everyone,<BR />I’ve integrated Authorize.Net with my website using SIM (Simple Integration Method) and set up a Silent Post URL to capture transaction data after payment success. However, even though payments are processed correctly, the Silent Post URL doesn’t seem to receive any data.</P><P>I've double-checked that:</P><P>The URL is publicly accessible over HTTPS</P><P>Firewall is not blocking Authorize.Net IPs</P><P>I’m using the correct format for the x_relay_url and have set it in the merchant settings</P><P>There are no entries in my server logs, which makes me think the POST isn’t hitting the server at all. Has anyone faced this recently or know of a way to log or test the Silent Post directly?</P> Fri, 25 Jul 2025 08:10:51 GMT https://community.developer.cybersource.com/t5/Integration-and-Testing/Silent-Post-URL-not-receiving-transaction-response-after/m-p/92513#M57849 usmanraja054 2025-07-25T08:10:51Z