JCo configuration

Hi all.
I have an app that uses rfc models and the JCo's are configurated as following:
- The WD_XXXX_MODELDATA_DEST type are using tickets(SSO) under Application Data Type
- The WD_XXXX_RFC_METADATA_DEST type are using user & password under Dictionary Meta Data.
It works but there are a requirement of use tickets in the second ones type of JCo. I did edit those JCo's and set the ticket option, it works at the beginning but after of some time the app gives an exception, that says something of password missing at the loading of a type. I cant copy the exception's text because i cant reproduce the exception right now.
What can i do? Please i need some help urgent.
Thx.
Best Regards.
Gregory.

Hello Gregory,
You can follow the link to do the required configurational changes/settings.
<a href="http://help.sap.com/saphelp_nw2004s/helpdata/en/42/dddfda02302cede10000000a1553f7/frameset.htm">Configuring AS-Java to Accept and Verify Logon Tickets</a>
Also you may refer this one
<a href="http://help.sap.com/saphelp_nw2004s/helpdata/en/c4/f01241c738f423e10000000a155106/frameset.htm">User Account Is Locked</a>
Bala
Message was edited by: Bala Krishnan

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Please help provide document on Jco configuration

Does anybody have the how to guide for Jco
config and would like to share?
Thanks and points.

Hi Jennifer,
As such you would not be able be able to find a guide to creating a JCO connection, but hope the following helps:
1. go to <a href="http://<server>:<port>/index.html">http://<server>:<port>/index.html</a>
2. select webdynpro
3. select Content Administrator.
4. on Top left there is an option Create JCO connection, select that & follow the procedure of creation.
A point to note here is that for creating a JCO connection, you must have configured your SLD beforehand. This can be done by going to <a href="http://<server>:<port>/index.html">http://<server>:<port>/sld</a>
(Just in case you require to do that, go to
<a href="https://www.sdn.sap.com/irj/sdn/thread?threadID=146517&tstart=50">https://www.sdn.sap.com/irj/sdn/thread?threadID=146517&tstart=50</a>)
Some other useful links are:
<a href="http://help.sap.com/saphelp_nw2004s/helpdata/en/3a/3b1b40fcdd8f5ce10000000a155106/frameset.htm">http://help.sap.com/saphelp_nw2004s/helpdata/en/3a/3b1b40fcdd8f5ce10000000a155106/frameset.htm</a>
<a href="https://www.sdn.sap.com/irj/sdn/thread?threadID=201270&tstart=0">https://www.sdn.sap.com/irj/sdn/thread?threadID=201270&tstart=0</a>
Reward points if it helps!!
Bye
Ankur

About the JCO's configuration...

Dear,
I have two questions:
1) What the usage of "Extented Configuration Management (XCM)".
2) What the usage of JCO configuration in Web Dynpro or SLD?
Thanks.

Hi Jie,
1) Extended Configuration Management (XCM) Administration tool to configure Web applications after you have installed the Web components.
You can get more about this in
http://help.sap.com/saphelp_crm60/helpdata/en/0f/f8a642a4f70c31e10000000a1550b0/content.htm
2) SLD is used to store the connection properties of Java system and ABAP System.
JCO Destinations acts as interface between web AS Java Technical system and Web AS ABAP Technical system.
In an Webdynpro application we will use RFC's and BAPI's, if u want to communicate with ECC via webdynpro java application these SLD and JCO's configurations are mandatory.
See this document, how to configure it.
http://www.sdn.sap.com/irj/scn/index?rid=/library/uuid/c0c1d495-048e-2b10-babd-924a136f56b5
Regards,
Pradeep Kumar G

Configuration of JCo

Hi Friends,
 Can Any Body Send JCo Configuration Steps such how to configure ?
With Regards\
Vijay

Hi,
For WD_MODELDATA_DEST
Step1(General Data):
give the entry for client:400 //SAP Client number
Maximal Pool Size 100//Maximum
Maximum Connections 200//Maximum
Connection Timout (msec.) 10,000
Maximum Waiting 30,000
 next>
step2(J2EE Cluster):
Default next>
Step3(Connection Type):
3.1
select Application Data radio button and Single Server Connection radiobutton
step3.1(Appl. Server Connection):
Application Server select your corressponding server in SLD
System Id 00
Use SAP Router un checked next>

step4(Security):
Used Method User/Password
Name <SAPUSERNAME>
Password <SAPPASSWORD>
Confirm Password <SAPPASSWORD>
Language <ENGLISH> next>
Step5(Summary):
Default
Finish
Test Connection

For WD_RFC_METADATA_DEST

Step1(General Data):
give the entry for client:400 //SAP Client number
Maximal Pool Size 100//Maximum
Maximum Connections 200//Maximum
Connection Timout (msec.) 10,000
Maximum Waiting 30,000 next>

step2(J2EE Cluster):
Default
Step2(Connection Type):
3.1
select Dictionary Meta Data radio button
step3.2(Msg. Server Connection):
Message Server Select the Message server name Configured in SLD
System Name Default
Logon Group Select the Logon Group name Configured in SLD
Use SAP Router un checked next>
step4(Security):
Used Method User/Password
Name <SAPUSERNAME>
Password <SAPPASSWORD>
Confirm Password <SAPPASSWORD>
Language <ENGLISH> next>
Step5(Summary):
Default
Finish
Test Connection
Kind Regards
Mukesh

SSO issue in the production server,com.sap.mw.jco.JCO$Exception: (103)

com.sap.mw.jco.JCO$Exception: (103) RFC_ERROR_LOGON_FAILURE: This system rejects all logons using SSO tickets
in the production server.....
while testing the jco maintained for Ess applications.
if i go for uidpw method for modeldata destination i am getting the error. in the Ess pages that administrtor not in this peroid(administrator with which id i maintained jco destination)
if i assign one employee to the admin in pa30......for every employee getting the same details of admin)
I guess this problem with modeldata ......i should maintain the usermanagement method for modeldata jco destination is logon ticket.
while maintainig that ping is successfull but getting the above error.
it is the problem with production server.......of E.P
in dev and quality everything is working fine.
plz help me out.
thankyou
swapna

Hi Swapna,
Please check the logon group properties for SAP system in t-code SMLG. If there is any issue with logon group then it might cause for this issue.
Refer to [Click here|https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/user-interface-technology/wd%20java/7.0/portal%20integration/how%20to%20configure%20the%20jco%20destination%20settings.pdf] and [System Landscape Directory Process and JCo Configuration|http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/c0c1d495-048e-2b10-babd-924a136f56b5?QuickLink=index&overridelayout=true]
Hope it will helps
Regards, Arun Jaiswal

Unable to close metadata jco connection

Hi Experts,
when checking the JCo Connection Pools in Web Dynpro Console, I found that all MetaData JCo are in use and unable to disconnect automatically.
the following is metadata jco destination setting
Maximal Pool Size 1
Maximum Connections 5
Connection Timeout 60
Maximum Wait Time 10
how can i do to close these jco connection?

Hi Sidney,
I dont really understand why you want to remove the Jco connections. If you click on the "Remove" button as posted earlier by someone, it will completely remove your Jco configurations and you have to create them again on your own. SO, dont do that.
If you want to disconnect the Jco connection in webdynpro java, we can do that by using the following piece of code at the end of the connection process.
As far as I know, by default the Jco connections gets disconnected after certain time limit. Because, I never had to disconnect the Jco whenever I used one.
wdContext.currentModelElement().modelObject().modelInstance().disconnectIfAlive()
Regards,
Gopal.

Error connection using JCO.Client :null

Hi,
I have small doubt in JCO connection, can any one help me.
In WebDynpro application some time we are getting exception like Error connection using JCO.client : null.
Connection :200 we are maintained in JCO configuration.
If I call one RFC useing JCO it will created a session or connection to ECC server, because we are getting exception in server too many sessions to ECC server.
Write now we are not using any code to close the connection like.
SaveModel svModel = (SaveModel)WDModelFactory.getModelInstance(SaveModel.class);
svModel.disconnectIfAlive();
If we use the above code it will close the connection or sessions.
Is it recommended to write the code in every RFC calls or in final block of all RFC calls ?
Regards,
Satya.

Hi Satya
/message/1944647#1944647 [original link is broken]
/message/8499#8499 [original link is broken]
Please go through this link.Hope it will be helpful for you
Regards
Ruturaj

JCo issue - return table is null

Hi,
I am trying to read the return table from a function module using
JCoParameterList jplExport = function.getTableParameterList();
This works fine in the development environment, however in QA I am getting jplExport as null.
I have debugged it in QA using an external debugger and the return table has rows.
We have also ruled out the possibility of it being a authorization issue after checking with the security team.
I have debugged the FM using the JCo user and it has the return table, also if I run it from within SAP GUI it returns values in the return table.
To re-iterate the same code works fine in Dev.
In QA the import is good as I can see the values in the return table.
I am unable to understand what the issue is here. Why will it return null inspite of having values ?
Please suggest.
Thanks,
Veena.

Hi Veena,
-> Check if you can call any other function modules in the QA environment. If not, something is wrong with JCo configuration.
->Do you see any differences in function modules signatures from Dev and QA?
Cheers,
~kranthi

Run Time JCo Creation

Hi All,
 I have to create JCO at runtime. Based on the SAP client ID, user id,password and system number i have to create JCO. Predefined JCO configuration for a client number thru Portal, is not useful, because i don't know how many users will logon at a time? So, i wish to create JCO based on the user inputs at run time.
I used the following code to create JCO at runtime.
try {
 mConnection = JCO.createClient("sapclient",
 "userid","password",lanuage,"appserver name", "system number");
mConnection.connect();
}catch (Exception ex) { ex.printStackTrace();
 System.exit(1); }
After creating, i got all information like(username,appserver name,system number, etc.)
At this stage i got JCo connection name like 'mConnection'. My question is how to move to next step using mConnection?.
The JcoConnection contains some methods like mConnection.execute(parameter).
1. Is it possible to execute BAPI using JcoConnection created at runtime?
2. How to execute BAPI using JcoConnection created at runtime?
3. Is it necessary to create a model through the wizard in NWDS?
4. If i use execute() method, what are the parameters to be given?
Please help me.
Kind Regards,
S.Saravanan.
Message was edited by: Saravanan S
Message was edited by: Saravanan S

Saravanan,
Refer
1.<a href="http://help.sap.com/saphelp_nw2004s/helpdata/en/6a/14e13d8ee4535ee10000000a114084/frameset.htm">Table Manipulation</a>
2.<a href="http://help.sap.com/saphelp_nw2004s/helpdata/en/6a/14e13d8ee4535ee10000000a114084/frameset.htm">Example Program</a>.
These two links should answer all your queries.
Good Luck,
Bala

How to solve the JCO problem

hi, everybody
In my project, I must run some RFC to get my result. But when I build, deploy and run my project, error has happened as follows:
" com.sap.tc.webdynpro.services.exceptions.WDRuntimeException: Failed to resolve JCO destination name 'WD_FLIGHTLIST_RFC_METADATA_DEST' in the SLD. No such JCO destination is defined in the SLD. "
I wonder if I have not config my jco destination yet.
Would you please give my a help! 3KS!

Hi Daniel,
As suggested by Govindu, adding document related to your issue to resolved.
[Web Dynpro Best Practices|https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/user-interface-technology/wd%20java/7.0/portal%20integration/how%20to%20configure%20the%20jco%20destination%20settings.pdf]
[System Landscape Directory Process and JCo Configuration|http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/c0c1d495-048e-2b10-babd-924a136f56b5?quicklink=index&overridelayout=true]
Refer to Failed to resolve JCO destination name 'WD_RFC_METADATA_DEST' in the SLD for similar discussions.
Hope it will helps
Regards
Arun Jaiswal

Error in Jco Destination Create (MsgServerName is not defined).

Hi,
When I try to create a Metadata Jco Destination, the system show the message "MsgServerName is not defined" and cancel the operation.
I can create Modeldata Jco Destination correctly. The problem is only on Metadata Jco Destination.
Thanks.
Ariel.

Hi Alex,
Please see the below link in which discussed the issue for "MsgServerName is not defined".
JCo Destinations: Message Server connection not defined
/message/8658127#8658127 [original link is broken]
Maintain JCO Destination, cannot set the server and logon group
Also check the [System Landscape Directory Process and JCo Configuration|http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/c0c1d495-048e-2b10-babd-924a136f56b5?quicklink=index&overridelayout=true]
Hope it helps
Regards,
Arun

What is jco destination

hi all,
what is a JCo destination, what is its function exactly?
what is Model data and MetaData which are given while creating a Model in WebDynPro i.e importing a function module?
any links for understanding adaptive RFC model will be helpful.
Regards,
Sudheer.

Hi ,
Chk thes links,
Wat is Jco,
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/85a483cb-0d01-0010-2990-c5168f01ce8a
JCO Config
http://help.sap.com/saphelp_nw70/helpdata/en/3a/3b1b40fcdd8f5ce10000000a155106/content.htm -->JCO
Configuring JCO Destinations(Full PDF)
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/3103eb90-0201-0010-71af-be6f4a6f61d1
Config. Jco --ESS
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/21eb036a-0a01-0010-25a3-b2224432640a
Forum Discussion Abt Jco
Re: JCO - Gray status
For models and adaptive RFC,
Web Dynpro Backend Access [original link is broken]
you can get all the inforamtion u want..
Hop this will helpful for u
*GS
Edited by: Sathishkumar GS on Mar 26, 2008 4:18 PM
Edited by: Sathishkumar GS on Mar 26, 2008 4:18 PM

Reconfiguring JCo (Urgent Pls Help ASAP)

Dear all,
My back-end CRM system is getting migrated. So IP, username, password, client will get change.
Now I have currently imported 8-10 RFC models from this existing CRM system. I have one JCo configured for the same.
So if i change the existing JCo's settings (IP, username, password, Client etc) from Wed Dynpro Content Administrator for new system, then will those model work? Or I have to re-import the models again???
Pls help me asap as I have to convey estimated system downtime to business.
Thank you in advance.
Regards,
Amey

So if i change the existing JCo's settings (IP, username, password, Client etc) from Wed Dynpro Content Administrator for new system, then will those model work? Or I have to re-import the models again???
Yes. we can change JCo settings to point a different system
if signature of RFC are same in both CRM instance, there is no need of re-import.
Best Regards,
nikhil

Jco destiantions are with greyed status in webdynpro content administrator

Hi All
In webdynpro content administrator of BI System all the jco destinations are displatyed with greyed status,even i tried to create new destination with any name the message comes use another destination,it is already used in sld.the connection to sld is working fine.i am using the user as j2ee_admin.
kindly help me out.
Regards
Pranav

Hi Pranav
If the SLD is working fine then you need to check the below thing :-
1. Check the SLD Data Supplier in the Visual Administrator and update the correct information and test it.
2. Update Host and service file for server in the server system for jco destinations visibility.
Refer to [System Landscape Directory Process and JCo Configuration|http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/c0c1d495-048e-2b10-babd-924a136f56b5?quicklink=index&overridelayout=true]
Hope it will helps.
Best Regards, Arun Jaiswal

JCo connection between EP/BI

Hi
I am trying to set connection between EP7/ BI 7.0
Do we need to configuration JCO. If yes, what JCO connection need to be acivitated (e.g for R/3(ESS/MSS) we usaully activate SAP_R3 HumanResource_MetaData, SAP_selfServiceGeneric, SAP_R3_Selfservicre_meda etc.
Can anyone please point me the link
Thank you very much.

Thanks Arun for quick response.
I am little confused for JCO configuration for BW. Please help.
Do we need to configuration JCO connection for EP/BW. If yes, what JCO connection need to be acivitated (e.g i remember activating the the following for R/3(ESS/MSS) SAP_R3 RumanResource_MetaData, SAP_selfServiceGeneric, SAP_R3_Selfservicre_meda etc but not sure with of the above need to be activated for BW
Thanks again.
Thank you very much.

JCo configuration

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