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E-IB: Get "External System Contact Error (158,10721)" + "IOException: The host couldn't be resolved" & " {URL}" on Sending, while Ping Node Works (Doc ID 1997434.1)

Last updated on DECEMBER 13, 2019

Applies to:

PeopleSoft Enterprise PT PeopleTools - Version 8.50 and later
Information in this document applies to any platform.


On PeopleTools 8.5x, an Integration Broker can successfully ping a third party node, but actual outbound sending to the same node fails with errors:

Online error:

Integration Gateway - External System Contact Error (158,10721) 

Gateway error log:

HttpTargetConnector:ExternalSystemContactException {URL}
PeoplesoftListeningConnector: GeneralFrameworkException
MessageSet: 158  MessageID: 10721  MessageParms: IOException: The host couldn't be resolved. 
Note: the placeholder {URL} is placed above instead of actual URL, specific to your intergration, which you would see in the logs

[Stack Trace] {...URL...}
at psft.pt8.pshttp.http.HttpURLConnection.getInputStream(
at psft.pt8.pshttp.PSHttp.getResponseCode(


<?xml version="1.0"?>
        <Parameters count="1"><Parm>IOException: The host couldn't be resolved.</Parm></Parameters>
        <DefaultTitle>Integration Gateway Error</DefaultTitle>



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