I know, this question would asked often: I have problems to create a Jco-destination to a SAP System ECC 5.0.
I have only one Netweaver 2004 with, Portal, SLD etc. for testing and one SAP ECC 5.0. We had any SLD in our landscape. So I setup the SLD in the netweaver described like in this thread content-administrator---create-jco-connection.
I have done all the steps which Sam Mathew described.
But when I test my Jco destination I got this error: "com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNICATION: Connect to message server host failed".
The only thing what I want to try is a Web Dynpro which use a RFC Connection. What is the minimum of configuraton to have this (I don't need a system landscape for transporting)?
When I define a Technical System type WEB AS ABAP I can set only a message server. It's not possible to define an application server.
But: It's also possible to define a Jco Connection in the SLD administration if I choose the WEB AS Java System (my netweaver portal). At this place it is possible to take the application server instead of message server. But when I going then to <myhost>/webdynpro I got errors in the page for the Jco Connections. Why?
If I try to transfer the informations of the ERP from ECC 5.0 to the SLD-BRIDGE via RZ70 I got errors (instead of using the zip file). First the RFC-Destination SAPSLDAPI doesn't exist and I created it. I create also the RFC service in the visual administrator. But the SLDCHECK wrote: "RFC ping returned exception with message: Error opening the RFC-Connection".
Can anybody gif to me some additional hints what to do, perhaps some tests which I can make on the J2EE engine?
The engines are in the same domain. BSPs from the ECC are working in the portal.