Correlation and Sync Asyn Bridge

Regarding Sync-Asyn ,I have gone thru these blogs...
Demonstrating Use of Synchronous-Asynchronous Bridge to Integrate Synchronous and Asynchronous systems using ccBPM in SAP Xi - Use of Synch - Asynch bridge in ccBPM
https://www.sdn.sap.com/irj/sdn/weblogs?blog=/pub/wlg/1403 [original link is broken] [original link is broken] [original link is broken] - Use of Synch - Asynch bridge in ccBPM
I am not able to do a end to end scenario...using this ....So could any one give me a step by step guide for the syn-asyn Bridge.
And also step by step for correlation...
Please help me in this regard....
<Moderator note: thread locked. I moved your last post to XI, please do not post duplicate questions>
Edited by: Mike Pokraka on Jul 7, 2008 1:00 PM

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BPM correlation and Sync-Asyn Bridge....

Regarding Sync-Asyn ,I have gone thru these blogs...
Demonstrating Use of Synchronous-Asynchronous Bridge to Integrate Synchronous and Asynchronous systems using ccBPM in SAP Xi - Use of Synch - Asynch bridge in ccBPM
https://www.sdn.sap.com/irj/sdn/weblogs?blog=/pub/wlg/1403 [original link is broken] [original link is broken] [original link is broken] - Use of Synch - Asynch bridge in ccBPM
I am not able to do a end to end scenario...using this ....So could any one give me a step by step guide for the syn-asyn Bridge.
And also step by step for correlation...
Please help me in this regard....

Hi,
Defining Sync/Async Communication
To enable the communication between a synchronously calling business system (synchronous outbound interface) and an asynchronously called business system (asynchronous inbound and outbound interface), you can define a sync/async bridge in an integration process. You can only define one sync/async bridge for each integration process.
You can also achieve sync/async communication by using the JMS adapter. If you do not have any particular demand for monitoring or for troubleshooting, SAP recommends that you use sync/async communication in the JMS adapter instead. The advantage of using the JMS adapter over synch/async communication using an integration process is a significant increase in system performance.
See: Async/Sync and Sync/Async Bridge in JMS Adapter
Structure of a Sync/Async Bridge
The following table outlines the minimum components of a sync/async bridge:
Step
Use
Receive step to open the sync/async bridge
Receives the message request from the synchronously calling business system and opens the sync/async bridge
Asynchronous send step
Sends the received message asynchronously to the asynchronously called business system
Receive step
Receives the message from the asynchronously called business system
Send step to close the sync/async bridge
Sends, for example, the response from the asynchronously called business system to the synchronously calling business system
Performance Considerations
If you insert additional steps in the sync/async bridge, the synchronous time is increased correspondingly. If the time that elapses before the sync/async bridge is closed is too long, this can lead to problems.
Fault Messages
It is currently not possible to send fault messages back to the synchronously calling business system. If you want to return error statuses to the synchronously calling business system, you can define a field for an error indicator in the message that is sent to the synchronous interface.
Procedure
Define a Receive Step to Open the Sync/Async Bridge
       1.      Insert the receive step to open the sync/async bridge in the integration process.
You can do this at the following points:
○       Directly after the start marker
○       As the first step in a block if the block is the first step of the integration process and if it has the mode Standard
○       As the first step in a fork. If the fork already contains some starting receive steps, the Start Process indicator is automatically reset for these steps.
       2.      In the object area, define the container element that receives the synchronously sent message.
Specify an asynchronous, abstract interface in the container element. The message must correspond to the request message of the synchronous interface used to receive the message.
       3.      Select this container element in the Message field in the properties area of the receive step.
       4.      In the Mode field, select Open S/A Bridge.
       5.      Select the Start Process field.
The receive step to open the sync/async bridge must start the integration process. There must be no other receive steps to start the integration process.
       6.      Specify the synchronous interface for receiving the message from the synchronously calling business system. The message type of the message to be received and the request message from the synchronous interface must be identical.
Define an Asynchronous Send Step
       7.      Insert a send step that sends the received message asynchronously to the asynchronously called business system.
See also: Sending Messages from Integration Processes Asynchronously
Define a Receive Step
       8.      Insert a receive step that receives the message from the asynchronously called business system.
Define a Send Step to Close the Sync/Async Bridge
       9.      Insert the send step at the required position in the process definition.
Do not insert the send step in a loop, block, or fork.
   10.      In the Mode field, select Close S/A Bridge.
The integration process must not contain any further send steps to close a sync/async bridge.
   11.      In the Opened By field, specify the receive step that opened the sync/async bridge.
   12.      In the message field, specify the message that is sent to the synchronous interface.
This message must be of the same type as the response message from the synchronous interface that you specified in the opening receive step.
Example
You can find an example of a sync/async bridge in the Integration Repository under SAP Basis à SAP Basis 6.40, namespace http://sap.com/xi/XI/System/Patterns under BpmPatternSyncAsyncBridge.
For a description of the example, see Example: Sync/Async Communication.
Reg,
suresh

How to realize a Sync-Asyn Bridge

Hey Folks,
I was trying to 'decode' whatever is written in the How to guide (Realize a sync - async and async - sync bridge in the adapter framework). Thanks to Bhavesh he posted the thread on the Async - Sync part and so i thought i would figure out the Sync - Async part.
Ok so here is what i have done till now (with no success);
its a HTTP <-> XI <-> File
So;
2 DT/MT for HTTP, 2 DT/MT for file
1 MI outbound sync -> http
1 MI inbound sync -> File
the 2 mappings and the 1 IM
In configuration;
1 rec. file adapter and 1 sender file adapter
the configuration is as usual for a sync scenario; except for the sender agreement for the sender file adapter, i configure a dummy sender agreement with dummy interface and dummy namespace but the original CC created.
In the Recv. file channel module part;
1 AF_Modules/RequestOnewayBean Local Enterprise Bean 2
2 CallSapAdapter Local Enterprise Bean 0
3 AF_Modules/WaitResponseBean Local Enterprise Bean 1
2 passThrough true
in the sender file channel;
1 AF_Modules/NotifyResponseBean Local Enterprise Bean 1
So any of you guys who did something on that document, i hope can throw some light
Cos i am sure i am missing something here !!!
~~ShaBZ

HI,
Are you using BPM or not??
Can you plz tell me the SP number/version.
I hope Sync - Asyn without BPM is possible with latest SP.
Please see the below links
/people/community.user/blog/2006/12/12/http-to-rfc--a-starter-kit
Searching for a BPM scenario
With BPM
/people/sriram.vasudevan3/blog/2005/01/11/demonstrating-use-of-synchronous-asynchronous-bridge-to-integrate-synchronous-and-asynchronous-systems-using-ccbpm-in-sap-xi
https://www.sdn.sap.com/irj/sdn/weblogs?blog=/pub/wlg/1403 [original link is broken] [original link is broken] [original link is broken] [original link is broken]
Regards
Chilla..

Sync-Asyn Bridge

Hello friends,
Could any one give information or blog on Synch -Asyn Bridge used in HTTP --> RFC scenario

Hi,
Refer this..
https://www.sdn.sap.com/sdn/weblogs.sdn?blog=/pub/wlg/1403 [original link is broken] [original link is broken] [original link is broken]
BPM Sync- Async Bridge
Pipeline timeout error
/people/pooja.pandey/blog/2005/07/27/idocs-multiple-types-collection-in-bpm
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/e3d59c90-0201-0010-ac83-cfd0071f095a
Who to manage TimeOut in BPM ?
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/eb5cc090-0201-0010-5284-fd5376b01934
/people/sriram.vasudevan3/blog/2005/01/11/demonstrating-use-of-synchronous-asynchronous-bridge-to-integrate-synchronous-and-asynchronous-systems-using-ccbpm-in-sap-xi - Use of Synch - Asynch bridge in ccBPM
regards,
vasanth.

Usage of sync-asyn bridge problem in BPM in particular scenario

scenario is to send a Stock availability check from one suboffice to other suboffice which does not involve any R/3 activities.
I need to send SOAP request to XI, BPM receives request through synchronous interface.
BPM has to send request to DB through synchronous interface and gets response
Questions:
1) whether sync-async bridge comes into picture in BPM or not
2) i am really confused how many Data types,Message types and message interfaces i have to create.
3) what are all the message interfaces i have to create
4) abt Integration Directory activities.
Its would be appreciated if u tell step by step.
Its urgent..
Thanks & Regards.,
Pushparaju.B

I have created these things as of now , but problem in interface mapping
Interface Objects
Data Types
1)DT_Soap_request
2)DT_Soap_response
3)DT_Jdbc_request
4)DT_Jdbc_response
corresponding message types
1)MT_Soap_request
2)MT_Soap_response
3)MT_Jdbc_request
4)MT_Jdbc_request_response
Message Interfaces
1)MI_SOAP (inbound asynchronous) MT_Soap_Response and MT_Soap_Request input message
2)MI_JDBC (outbound asynchronous) MT_Jdbc_response output message and MT_Jdbc_request input message
Mapping Objects
Message mappings
1) MM_Jdbc_Response_Soap_Response where MT_Jdbc_request_response and target message is MT_Soap_response
2) MM_Soap_Request_Jdbc_Request where source message is MT_Soap_request and target message is MT_Jdbc_request
Error in interface mapping is
IM_Soap_Request_Jdbc_Request has interfaces source is MI_JDBC and target is MI_SOAP
 No object found for message mapping in request tab
can anyone help me please its urgent.
why its not detecting the message mapping in request tab
Thanks & Regards.,
Pushparaju.B.

Syn-Asyn Bridge and correlation

Regarding Sync-Asyn ,I have gone thru these blogs...
Demonstrating Use of Synchronous-Asynchronous Bridge to Integrate Synchronous and Asynchronous systems using ccBPM in SAP Xi - Use of Synch - Asynch bridge in ccBPM
https://www.sdn.sap.com/irj/sdn/weblogs?blog=/pub/wlg/1403 [original link is broken] [original link is broken] [original link is broken] - Use of Synch - Asynch bridge in ccBPM
I am not able to do a end to end scenario...using this ....So could any one give me a step by step guide for the syn-asyn Bridge.
And also step by step for correlation...
Please help me in this regard....
<Moderator note: Moved to more appropriate XI forum>
Edited by: Mike Pokraka on Jul 7, 2008 10:09 AM

Regarding Sync-Asyn ,I have gone thru these blogs...
Demonstrating Use of Synchronous-Asynchronous Bridge to Integrate Synchronous and Asynchronous systems using ccBPM in SAP Xi - Use of Synch - Asynch bridge in ccBPM
https://www.sdn.sap.com/irj/sdn/weblogs?blog=/pub/wlg/1403 [original link is broken] [original link is broken] [original link is broken] - Use of Synch - Asynch bridge in ccBPM
I am not able to do a end to end scenario...using this ....So could any one give me a step by step guide for the syn-asyn Bridge.
And also step by step for correlation...
Please help me in this regard....
<Moderator note: Moved to more appropriate XI forum>
Edited by: Mike Pokraka on Jul 7, 2008 10:09 AM

Correlation and Async/Sync Communication using JMS adapter without BPM

Hello
1. Pls explain with simple example docs/links --- Correlation
2. Async/Sync Communication using JMS adapter without BPM
If i see blog --- If I go with blog --- /people/sudheer.babu2/blog/2007/01/18/asyncsync-communication-using-jms-adapter-without-bpm-sp-19
Pls explain --- Correlation Settings, select JMSMessageID for the XI Conversation ID.
Pls explain -- Correlation Settings, select XI Conversation ID as jMSCorrelationID.
Can you pls explain me this example with JMSMessageID and JMSCorrelationID context
Regards

Hi Henry,
For Correlation, please go through the below link.
/people/sravya.talanki2/blog/2005/08/24/do-you-like-to-understand-147correlation148-in-xi
Sync / Async Bridge communication using JMS : http://help.sap.com/saphelp_nw04s/helpdata/en/45/20d251c20a0732e10000000a155369/frameset.htm
Sync / Async communication without BPM in JMS : /people/venkataramanan.parameswaran/blog/2007/01/18/syncasync-communication-in-jms-adapter-without-bpm-sp19
/people/henrique.pinto/blog/2007/08/02/syncasync-scenarios-without-bpm
Hope these help
Regards
Kiran..

Correlation issue due to async receive with sync/async bridge

Hi,
I have an Integration process (PI 7.0), which consists of sync/async bridge.
One of the step in the process is async receive.
To avoid any issue with correlation, i placed the whole process (except start and end) into a block and assigned a local correlation to it.
The Sync receive in sync/async bridge will activate the correlation and one of the async receive step in the process will use that correlation.
Normally it worked fine. But during one execution (just for testing), the async receive step did not take input to the process, and so the process execution replied "Timeout in Pipeline". But thereafter i cannot execute the process successfully, even when async takes the input.
And in the BPE monitoring, in workflow log, the process Instances are still "In Progress".
Do we have any way to stop these processes and unlink any possible correlation related to them?

Hi,
A local correlation is only valid for the block for which it is defined. Once the block has been processed, the correlation is no longer active.
If the validity of a correlation is not restricted correctly, the following problems can occur:
¡ Messages that satisfy an active correlation are continued to be assigned to a running integration process. The integration process no longer processes the messages because no processing steps are waiting for the messages.
¡ Messages that satisfy an active correlation are continued to be assigned to a running integration process, instead of starting a new integration process.
You can avoid these problems and make it easier to follow how messages are processed by restricting correlations correctly to the required block.
Please check the local correlations for it
With SXMB_MONI_BPE you can monitor these instances.
But to kill it you need to use tcode SWWL. You can go to SXMB_ADM_BPE to check the BPM related settings.
Thanks
swarup
Edited by: Swarup Sawant on May 31, 2008 1:40 AM

Sync/async bridge and proxy

Hi all. I am going to implement a sync/async bridge in the following scenatio:
JMS -> XI -> PROXY -> R/3
My question is how to hold the sync connection in R/3 using the Proxy class. Should i make a call from my inbound proxy class to the outbound proxy class, when returning data?, and if so, how is the sync connection being hold?
Thanks
/Thomas

Hi Thomas,
Just go thru links given below ur doubt will be cleared:
Synchronous Proxies:
Outbound Synchronous Proxy
https://www.sdn.sap.com/irj/sdn/wiki?path=/display/profile/abap%2bproxy%2boutbound%2bprogram%2b-%2bpurchase%2border%2bsend
Inbound Synchronous Proxy
https://www.sdn.sap.com/irj/sdn/wiki?path=/display/profile/abap%2bproxy%2binbound%2bprogram%2b-%2bsales%2border%2bcreation
go thru the weblog /people/vijaya.kumari2/blog/2006/01/26/how-do-you-activate-abap-proxies which explains how to activate proxies
Regards,
Vinod.

Getting Time-Out Error in Sync-Async Bridge

Hi All,
My IP has a Sync-Async Bridge. I have a fork, two senders, two switchs and a transformation step inside the bridge.
If XI takes much time to process the IP, the send step that closes sync-async bridge is not waiting for the message after a particular period and throws time out error to the sender.
Is it possible to increase the waiting time for sync-async bridge?
This IP works correctly 8 out of 10 times. Sometimes the message is sitting permenantly in the queue(smq2) and gives me system failure error.
Can u tell me why this problem happening?
Thanks & Regards,
Senthil.

Dear Michal/Senthil,
Can you pl clear a confusion that i have had for ages...
suppose there is a sync/async bridge ( i understand that it is used for sync business system too async BS communcation )
where we have 4 steps
sync receive - > async send -> async receive -> sync send..
i do understand that async send and async receive are combined through correlation
but i do not understand how do they work..
i mean when async send say send a file to a target system...does async receive reads a file from the same folder based on the corelation or wat...
basically can you pls explain me how do the steps 2 and 3 above work
Edited by: Tarang Shah on Mar 3, 2009 12:51 PM

Using WAIT step in Sync/Async Bridge

I am using a sync/async bridge and placed a 1 minute wait step in between my async send and async reply. When I test my process, the async reply comes in but then my 1 minute wait eventually times out and gives me an error. Can someone guide me in fixing this BPM design (which steps to add and how)?
http://webpages.charter.net/kpwendel/bpm_with_wait.jpg
I would like it to stop waiting once the async reply comes in and not timeout. If the 1 minute mark comes and a reply never came in, it would also be nice to send back an error message.
Thanks!

I pulled my WAIT task and had this scenario working a week ago. I have not made any changes, but now my inbound replies to close the BPM and link up to the request are not "linking". The request is eventually timing out even though the reply with a good correlation id comes in successfully. Any suggestions?
UPDATE: I went through my objects in the IB:Config and resaved/activated them and now it is working. Don't know what messed them up in the first place.
Message was edited by: Keith Wendel

Sync / Async Bridge without BPM

Hi All,
I was trying to implement the Sync / Async Bridge without the BPM. I am trying a HTTP to JMS Sync / Async Bridge. I have followed the following link and done exactly the same as shown in the document
http://help.sap.com/saphelp_nw04/helpdata/EN/45/20d2b4c20a0732e10000000a155369/content.htm
I have used a Java application which will poll the request queue and then place the message in the response queue with the same correlation ID frm the request queue.
After following the above link the response message was not appearing, the message were going to deilvering status and after some time i found that they were cancelled without errors
I searched in the forums for many solutions but what i found was this thread which stated that since the XI message ID is 32 bytes and Correlation ID is only 24 bytes its difficult for Modules to identify the response since the correlation is truncated.
JMS: Synch/Async bridge - how to configure
I tried changing the configuration in the reciver JMS channel to XI Conversion ID instead of Message ID and this also doesnt give me fruitfull results. The message was not being placed in the request queue, it gave an error saying that the conversion id was null. Though in the thread it seems to have worked for him.
After this i planned to dynamically generate a Correlation ID (a dummy one) of 24bytes and i sent it to the request queue this time the message was retrived from the response queue only to find that the correlation ID this time has been converted to some other format
Corrletion ID sent to the request queue: ABCDEFGHIJKLMNOPQRSTUVWX
Corrlation ID coming in the response queue : 4142434445464748494a4b4c4d4e4f505152535455565758
Can anyone put some light on what i exactly need to do or tell me why the conversion ID worked for Daneil in the thread and it gave me an error saying that the Conversion id is null
Rgds
Aditya

Hi Prateek,
This is what was tried in my first case. I did exactly what was given in that link.But since the Message id being 32 bytes and length of correlation id is 24 bytes id is getting truncated.
So its not working fine.
@ke i am having a look at the note will update you on this
Thanks for your response
Rgds
Aditya

Payload based sync/async bridge

This is my scenario: ABAP -> XI -> MQ -> XI -> ABAP
I want to use the message content to be the correlation key, it means ABAP sends a message with order no.="ORDER1" to MQ and MQ will reply a message contains order no.="ORDER1". Then XI will use this message from MQ to reply to the sync ABAP program. Is it possible ?
I read this document "How-to Correlate JMS 1.20" to build a sync/async bridge (XI is 3.0 SP17)
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/5059f110-0d01-0010-7c8b-fdc983be70c0
First, I followed 3.1 to build a "header based" sync/async bridge. It's ok, I can see a message id in the field "JMSCorrelationID" in MQ tool. (I didn't test reply). And then I checked 3.4 in the document and want to build a "payload based".
There are only 2 steps in this document
1. I modified the correlation to the order no. field of request message in the send step.
2. I modified the correlation to the order no. field of reply message in the correlation editor.
Is it ok ? Because when I ran the ABAP program again, I still see the same JMSCorrelationID in MQ?

Thanks, so, the correlation id is encoded. I think I can see "ORDER1" originally. I changed it to "ORDER2" and see another correlation id and I changed it back to "ORDER1" and I see the original correlation id. I think the configuration of ABAP -> XI -> MQ should be correct now.
Now my problem is MQ -> XI -> ABAP. I manually put a message with order no.="ORDER1" in the reply queue. XI got it, but show the error message in workbench.
"XI inbound processing failed for message at 2007-03-28|18:15:22.464+0800. JMS and XI identifiers for message are ID:414d51204d495453303153305420202045a35b480003f722 and 3cf8ed80-dd15-11db-a560-0017a47618a6 respectively. JMS adapter will rollback database and JMS session transactions"
Both of the messages are not the encoded "ORDER1" and when I press refresh in workbench, the 2nd id in the error message is always changed. Is there any suggestion for it ? thanks.

What is Syn to Asyn bridge

hi all,
it is one interview question.
what is Syn to Asyn bridge.
vijay

Hi Vijay,
You can use a sync/async bridge to connect a synchronous system to an asynchronous system. The synchronous request is converted to an asynchronous request in the module processor and sent.
The asynchronous system sends a response to a sender adapter. In the module processor of the sender adapter, this response is forwarded to the module processor of the original receiver adapter, where it is sent as a synchronous response of the waiting synchronous request.
Please have a look upon :
http://help.sap.com/saphelp_nw04/helpdata/en/43/65d4dab39b0398e10000000a1553f6/content.htm
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/5059f110-0d01-0010-7c8b-fdc983be70c0
*Pls: Reward points if helpful*
Regards,
Jyoti

Dynamic configuration in Sync/Async bridge in JMS

Hi
Scenario:
Portal sending request to JMS MQ and getting Response using sync/Async Bridge.
I have to written a UDF which will capture the value for cust_uid from request mapping and store it in dynamic configuration
And when the response comes from JMS MQu2026.this value gets populated in response mapping.
I have tested the UDF in a dummy Soap2rfc scenario and its working fine.
But when used in Sync/Async Bridge, the dynamic configuration fails.
For Sync/Async Bridge, there are 2 channels 1) Sender JMS 2) receiver JMS.
The synchronous request is converted to an asynchronous request in the module processor and sent.
The asynchronous system sends a response to a sender adapter. In the module processor of the sender adapter, this response is forwarded to the module processor of the original receiver adapter, where it is sent as a synchronous response of the waiting synchronous request.
Please suggest
Regards
Abhijit

Hi Abhijit,
Okay, so your data extraction/insertion is working fine for a simple synchronous request responser call.
I suppose this is working fine because your receiver adapter copies some part of the request message (at least the dc header) to the response message. (But I don't think this always works for all the adapter types). It is not working for the sync-async bridge because there are two unrelated messages in this case.
In order to copy the dc header from the first message to the second message, I think you can use the DynamicConfiguraitionBean module to store the dc header value in the module data and use this module again to recover it and set it to the second message. The whole process is somewhat complicated, but I will sketch the approach below.
First, let's call the first use of DCB the store step and the second the recover step. These store and recover steps must take place in the same module sequence so that they can use the module data to pass data from the first message to the second message. Furthermore, the store step must occur after the cust_id value is extracted into the dc header. So, your configuration must be placed in the receiver adapter side. Assuming the request message with the filled dc header coming into the module sequence, the first DCB module can be placed before the ROB module to store the dc header value in the module data. And the second DCB module can be placed after the WRB module to recover the dc header value from the module data and set it the dc header of the response message.
I hope this will work.
Regards, Yza

Correlation and Sync Asyn Bridge

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