Interface getting failed after changing the Business system to that service

Question

Hello All,
Our Env... is XI 3.0 and this is related to produciton env.
Based on our client requirment to change the business system from client 871 to 100 for  one of the R3 system which is reciever type(rfc).
After doing all the necessary changes , that particular service is getting failed and in the CC monitoring for that service I can see the log as "RFC_ERROR_LOGIN_FAILURE" mandate 871 (earlier client) does not exist in  the system.
The steps which I have followed to change the Business system.
1>I loged into the SLD of PRD system and clicked on businsess landscape .then i have clicked on the specified system to be changed (RY1 ) and then clicked on change mode and selected the required client (100) and saved the settings.
2>I have logged into ID(Integration Directory) and selected the service (RY1) which need to be changed .Under service -->Adaper specific -->compare sld configurations and then clicked on apply changes.
3>Now selected that communication channel of service (RY1) RFCRecieverR3 and changed the client 871 to 100 and the password of user XIRFCUSER ...
Then i saved the changes and after that i have activated that interface.
After that when i logged into CC monitoring and viewed that service channels and see the following errors:
Receiver channel 'RFCReceiverR3' for party '', service 'RY1'
Error can not instantiate RfcPool caused by:
com.sap.aii.af.rfc.RfcAdapterException: error initializing RfcClientPool:com.sap.aii.af.rfc.core.repository.RfcRepositoryException: can not connect to destination system due to: com.sap.mw.jco.JCO$Exception: (103) RFC_ERROR_LOGON_FAILURE: Mandante 871 não existente no sistema (selecionar mandante existente)
Can any one help me out of this situation , and i need to fix this ASAP as this is production system.
Awaiting for your reply.
Best Regards
Rakesh Reddy

Answer 1

Hello Nisar
Thanks for the update,
Let me say few points  about this particular problem:
1>The interface "XX" from XI sends data to two systems( R3 -->RP1 & RY1), some thing like branched (same data is passed to both the reciever systems).
And the second RY1 is copy of First system RP1 (Production sys) which is used for data loading purpose and every week there will be a refresh from First sys (RP1) to Second(RY1).
2>Now the first sys(RP1) is recieving the data successfully from XI , and the second one (RY1) is getting failed .And this started after changing the Business system 871 to 100 .
3>As mentioned by you , I have checked all the points mentioned
    i)In SM59 for XI (ABAP part) two rfc's are maintained (LCRSAPRFC & SAPSLDAPI) and the test connection is also fine...But I did not find these two connections in reciever systems(RP1 & RY1 too).
   ii)In reciever system RY1 ,when i went to RZ70 , i did not noticed any special settings and SLD Bridge :Gateway Information is not maitained over there .and the same thing in other reciever system(RP1) , with this can we confirm that there is nothing wrong in RZ70 settings.
   iii)In SLDAPICUST at recievers end for both systems nothing is mantained , where as in XI system all the details are maintained(Host name,port, user & password).
I have translated the error log into english from the CC monitoring for this interface which is in portuguese language .
It says that:
RFC_ERROR_LOGON_FAILURE: 871 Mandante not in the system (select principal existing)
Kindly advise me what to do ..for fixing this problem(this is pretty urgent and it is production env...)..
If any information required , I can provide that.
Best Regards
Rakesh Reddy