Could not create JCOClientConnection for logical System

[Former Member]

hi Experts,

I am getting this JCO error

"Could not create JCOClientConnection for logical System: WD_MODELDATA_DEST_TEST - Model: class com.testmodel.TESTMODEL. Please assure that you have configured the RFC connections and/or logical system name properly for this model!"

I have created and maintained the JCO in webdynpro Content Administrator. Tested it too it works fine.

As per other threads i have also JCO pool connection settings those too are fine.

Please help me understand why I am getting this error ???

I also tried creating test application that too gives the same error.

Regards,

Sanjyoti.

[Former Member · Accepted solution]

Hi,

Check that you have configured properly using the below document. And check the message server of R/3 is configured properly in the SLD.

https://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/c0c1d495-048e-2b10-babd-924a136f...

Function module to get the message server host name and port in R/3.

SLDAG_GET_MESSAGE_SERVER_INFO

See this thread also..

Regards,

Charan

[Former Member · Accepted solution]

hi all,

thank you for all your replies.

I got the reason for the error.

like other threads mentioned its some SSO related error.

As when i use the Modeldata logon as Userid instead of SSO Ticket.

I am able to acess the RFC in my webdynpro application.

Just thought to share.

But i am still not able to logon by sso.

Regards,

Sanjyoti.

[Former Member · Accepted solution]

Hi Sanjyoti,

The actual execution of the RFC is done using the model data. This can be SSO type.

But for the SSO to work, the backend system and portal should be configured properly. That is, the backend should be able to accept tickets, the ticket should be present in the ACL etc.

If the configuration is done, then you check connectivity of the JCo is maintain JCo screen(Web Dynpro role). If the test on the JCo is successful then the JCo is fine.

Else have a look at the JCo trace file in the <install_dir>\j2ee\cluster\server<xx> it has the following naming convention jrfc*.trc.

Please share the logs in the trace for better analysis.

Regards,

Kartikaye

[Former Member]

Hi,

Similar issues are resolved at the following threads:

/message/7580454#7580454 [original link is broken]

Also Check how to setup JCo destionations:

Regards.

Rajat