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SLD_UC not registered

Former Member
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I am trying to configure my ABAP server to act as the data supplier for my SLD installed on an J2EE server.

I configured my ABAP server using RZ70. When I test "SLD_UC" in SM59 I get the error message below:

Connection Error

Error when opening an RFC connection

ERROR: program SLD_UC not registered

LOCATION: SAP-Gateway on host M2003173DVM / sapgw00

DETAIL: TP SLD_UC not registered



MODULE: gwr3cpic.c

LINE: 1778




TIME: Tue Jun 10 09:16:05 2008


Accepted Solutions (1)

Accepted Solutions (1)

Former Member
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when navigating to SLD->Administration->Data Supplier I get the result below:

RFC server threads:

[DOWN] JCO/RFC server threads

Gateway Host:

Gateway Port:

[UP] BuilderDirector version 1.0.1

Updated SLDs:

(local) sld/active

Supported data types:




Generic (sldreg)

Last data received: J2EESystem at Tue Jun 10 09:15:00 EDT 2008

Current data queue size: 0

Former Member
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Check all the settings using SLDCHECK....

use this note 1057720

rewert back if any problems

Former Member
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thank you for the note. SLDCHECK is for XI - I do not have XI, so I dont see how the note applies to my case. Any other ideas?

Former Member
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Then I would say is to create a JCO rfc with the name SLD_UC from your Java system pointing to ABAP system.

And put the entry of Java system like System name and gateway value is SLD_UC rfc.

Your rfc problem would be solved.

Former Member
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Hi Deepak, I am trying to connect my ABAP system to my Java system, not my Java to my ABAP. Let me know.

Former Member
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To connect from ABAP to java you need a registered program (means a program that is running in Java end and recognised by ABAP). So when we create a JCO RFC it would be recognised by ABAP system.

Please read this

I think this one would clear the idea.

Former Member
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Hi Deepak, thank you for the suggestion. I tried it and it resolved my problem.points awarded accordingly.

Former Member
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Hi All,

Sorry to continue on this Thread... but today i too got this problem & as suggested here, i did created SLD_NUC JCO RFC provider in my SLD System. Now my RFC is working fine, but when i run Data supplier job through RZ70, it is giving me error of "JCO.Server could not find server function 'SET_SLD_DATA'".

Please find the logs of same & advice me what can be done. I did removed this entry, but then this RFC fails.

SLD DS Start Program

0: inmumsap18_BW2_00 : Execute program: SLDRFC

0: inmumsap18_BW2_00 : Execute program: SLDMSGSRV

0: inmumsap18_BW2_00 : Execute program: SLDIPSERV

0: inmumsap18_BW2_00 : Execute program: SLDINSTSP

0: inmumsap18_BW2_00 : Execute program: SLDINSTSC

0: inmumsap18_BW2_00 : Execute program: SLDINSTPRD

0: inmumsap18_BW2_00 : Execute program: SLDGWSRV

0: inmumsap18_BW2_00 : Execute program: SLDDBSYS

0: inmumsap18_BW2_00 : Execute program: SLDCOMPSYS

0: inmumsap18_BW2_00 : Execute program: SLDCLIENT

0: inmumsap18_BW2_00 : Execute program: SLDBCSYS

0: inmumsap18_BW2_00 : Execute program: SLDAPPL_SERV

0: inmumsap18_BW2_00 : Execute program: SLDASSOC

0: inmumsap18_BW2_00 : Collection of SLD data finished

0: inmumsap18_BW2_00 : Data collected successfully

0: inmumsap18_BW2_00 : RFC data prepared

0: inmumsap18_BW2_00 : Used RFC destination: SLD_NUC

0: inmumsap18_BW2_00 : RFC call failed: JCO.Server could not find server function 'SET_SLD_DATA'

0: inmumsap18_BW2_00 : Test mode: No batch job created

Active Contributor
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I know this question is answered but in reply to the last issue reported:

The following SAP note provides information in case you would connect an ABAP only SAP system to a JAVA SLD through RZ70:

You should not create JCO RFC destinations in the JCO/RFC Provider in the visual administrator, those will break the process.

Normally the RFC's are auto generated in the Java part and your SLD push in RZ70 will work.

I advise you to run SLDCHECK in the ABAP part if it's not the case and check the logs of the JAVA part for errors (possible under cluster/server0/log/system as you might have authorization issues).

Also the profile settings of the JAVA SLD have to be correct (hostname+gateway).

Kind regards


Active Participant
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thank you Tom for your input. I had the same issue .

I was about to create manually the JCO destination, when I saw your blog.

I updated the CR_CONTENT in the SLD, and now it works


Active Contributor
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Hello Raoul

Thanks for letting me know the blog was useful. Since I noticed so many posts on the SLD_UC issue I decided to place the how to in a blog because it does seem a bit strange when you look at how the configuration is partially auto-performed it causes confusion.

If anyone else bumps into the issue, you can check my blog on how to push ABAP system data to a Java only SLD:


Kind regards


Answers (2)

Answers (2)

Former Member
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Log on to the SLD through the URL http://<hostname SLD>.<domain>.<ext>:5<instance number>00/SLD using a user that has administrative rights (SLDDSUSER if sufficient rights or Administrator).

Now go to Administration--> profile--> select "Data suppier" in parameters dropdown--> enter "gateway host" & " gateway service" here

Now save the data and then restart the SLD and check SLD_UC and SLD_NUC in gateway system logedon cliets list.

If they appear... run RZ70 once again and issue will be resolved.


Former Member
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SLDCHECK is not just for XI. SLDCHECK tests connectivity between the ABAP Stack and the SLD, it verifies configuration of RFC, SLDAPICUST and RZ70.

I would run SLDCHECK and follow the steps in the troubleshooting note mentioned above.



Former Member
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Hi David,

when I run SLDCHECK it tells me that the SAPSLDAPI and LCRSAPRFC RFC destinations do not exist. I am not sure I need these destinations for automatic data supplying the ABAP technical info to my Java SLD system. I say that because I have another ABAP system that is connecting fine to a double-stack SLD and I don't have those RFCs in. Only the SLD_UC RFC is required to connect an ABAP system with an J2EE system.

Let me know.