3480980 - Error in call over HTTP: HTTP 0 null

You found PO messages failure in SOAP adapter.

In system trace log you can see error like below:

java.io.IOException: Communication over HTTPS. Unable to create a socket

Communication over HTTPS. I/O error occurred at getting input or output stream of socket

Error in call over HTTP: HTTP 0 null
[EXCEPTION]
java.io.IOException: Communication over HTTPS. Unable to create a socket

PI/PO

socket error, HTTPS communication failure, PO messages failure, SOAP adapter error, network connectivity issue, firewall blocking, SSL certificate issue, HTTPS configuration, server availability, port listening issue, timeout settings, queue consumer threads, PI troubleshooting, synchronous scenarios, I/O error , KBA , BC-OP-LNX , Linux , BC-XI-CON-SOP , SOAP Adapter , Problem