. Why we use Sync-Async bridge? .

Why we use Sync-Async bridge?

Dear Manoj,
http://help.sap.com/saphelp_nw04/helpdata/en/55/c5633c3a892251e10000000a114084/content.htm
A distinction is made between synchronous and asynchronous communication for both imported interfaces and message interfaces.  You define the mode of communication when you define an interface:
·        In the case of synchronous communication, a response message is expected from the receiver after a request has been sent. Once the request message has been sent, no further messages can be sent until the response to the request has arrived back at the sender system.
·        However, in asynchronous communication a (immediate) response is not expected. A sending process can send multiple messages to a receiver in a bundle and then continue executing the process.
You would use Synch - Asynch Bridge 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.
Regards,
Naveen.

Similar Messages

  • SOAP to JMS using Sync/Async bridge - configuration confirmation needed

    Hi group,
    Since I'm experincing error in a scenario using sync/async bridge in jms adapter I really would like a confirmation on my configuration.
    For a simple SOAP to JMS scenario is it then correct that all I need is;
    1) 2 synchronous message interfaces, 1 inbound and 1 outbound
    2) 1 Receiver determination
    3) 1 Interface determination
    4) 1 Receiver agreement (JMS adapter with module configuration)
    5) 2 Sender agreements (in my case 1 soap and 1 JMS adapter - the later with module configuration).
    6) The sender and receiver JMS adapters point to different MQ queues (request and response queues)
    7) The sender agreement for the JMS adapter uses my synchronous, inbound message interface (isn't this really just a "dummy" to actually fetch data from response queue - meaning that the actual utilized business system/service, MI and namespace are unimportant, since the module will make the adapter notify the listening module in the receiver JMS adapter?)
    Best Regards,
    Daniel

    Hi, thanks for your reply.
    I'm familiar with the links provided. I believe everything is configured as it should be, but since I get error I would like to have my configuration confirmed. Neither the weblog (or SAP guide) are detailed enough to convince me 100% that my configuration is correct. Surely the problem could be on the MQ side, but before going into that, I want to be sure that its not on XI-side.
    So I really would like confirmation on the steps/question that I wrote:-)
    Best Regards,
    Daniel

  • BPM Design using sync-async  bridge

    Hi Arpit,
    Below mentioned is an overview of the process flow which we are trying to implement.
    1. A synchronous interface takes in the request
    2. After the mapping, a file is created
    3. Another file adapter reads this file and sends a message back to the sync interface. This step is to make sure that the file is created
    I'm using a sync-async bridge for this process, since file creation and reading processes are asynchronous and the request/response is synchronous.
    Can somebody help me by telling how to design the BPM. How many send and receive steps are required etc?
    Thanks,
    Sandeep
        | Request  |    |    |       |    |     |    |       |
        |--------->|    |    |       |    |     |    |File   |
    HTTP|          |Sync|--->|Mapping|--->|Async|--->|Adapter|
        |<---------|I/f |<-  |       |    |I/f  |    |(write)|
        | Response |    | |  |       |    |     |    |_______|
                          |                              |
                          |                              |
                          |                          ____|___
                          ||      |   |        |    |        |
                          -|Async |<--|File Adp|<---|Folder  |
                           | I/f  |   |(read)  |    |________|

    Hi
    <i>>>I have to map the incoming xml from HTTP to another format before creating the file.</i>
    Ya then u can use the transform Step in between the
    sync Recv ---> Transform ---> Send to File System
    <i>>>Once a file is read, that interface has to send an acknowledgement message telling the status.</i>
    Wht type of acknowledgement msg telling the status.
    I think u can add another element in ur created file payload like <b>Status</b>: Created (ConstanT)
    Then u can map the payload of the readed file with tis payload having Ststus init.Fo this u need a <b>Transformation</b> Step.
    BTW i was searching some previous blogs and i got this and it is bit related to ur scenario.Go thru this
    /people/sriram.vasudevan3/blog/2005/01/11/demonstrating-use-of-synchronous-asynchronous-bridge-to-integrate-synchronous-and-asynchronous-systems-using-ccbpm-in-sap-xi
    Hope it helps.
    Regards
    Arpit Seth

  • When is Sync-Async bridge used in BPM? Kindly help!

    Hi Experts,
       I am finding it difficult to understand when to use Sync-Async bridge. In the example given by SAP it is not clear what they mean by following:
    1. We use Sync-Async bridge when the sender system is Sync and Receiver system is Async. What do you mean when you say receiver is Async?
    2. When Receiver is Async then how will it send a response?
    3. Can somebody explain the "Wait" mechanism used to get the response?
    4. Can we use Sync-Async bridge when both the sender and receiver systems are Sync? How?
    Please help me with the answers
    Thanks & Regards,
    Gopal

    Hi,
    In a simple way ill tell you. Suppose we need to check the reservation seats of Train or flite then the sender(our) side is Asynchronous and receiver(server) side is Synchronous, because the receiver(server) takes the request and send the response(seats r avail or not).
    For your second question
         If the receiver is Async then it doesn't send the response.
    For your fourth question chk this
    https://www.sdn.sap.com/irj/sdn/weblogs?blog=/pub/wlg/1403 [original link is broken] [original link is broken] [original link is broken]
    For more info Check this links
    Demonstrating Use of Synchronous-Asynchronous Bridge to Integrate Synchronous and Asynchronous systems using ccBPM in SAP Xi
    http://help.sap.com/saphelp_nw04/helpdata/en/83/d2a84028c9e469e10000000a1550b0/content.htm

  • 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

  • Sync async bridge configuration

    Hi,
    I am doing one sync to sync scenario using sync/async  bridge in BPM,I am posting one message from HTTP client.
    I am receiving the synchronous message inside bpm and opened sync aysnc bridge.
    Then I need to do some transformations,
    after transformation step I am closing sync/async bridge and sending the message back to sender system.
    I have created repository objects,
    while configuring directory objects,
    I have run wizard once between sender and BPM and do i need to run wizard again?
    please explain me about configuration (ID objects)?
    Thanks
    Best Regards,
    Harleen Kaur Chadha

    Hi Harleen,
       Check this below blog,its very useful for ur requirement.
    https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/10c73036-f019-2b10-20bc-f15a25be9588
    Regards,
    Skumar

  • File based Sync-Async Bridge

    Hi All,
    I have a scenario where a file is available in a shared folder.
    This file needs to be picked by a RFC Function module called in a Synchronous mode and the contents of the file needs to be displayed as the output of this RFC.
    Is this achievable using Sync-Async Bridge.If so can someone explain me the steps to achieve the same?

    If i were to open a Sync-Async bridge, I need to do the following
    Step 1: Receive step to open the sync/async bridge
    Step 2:Asynchronous send step
    Step 3:Receive step
    Step 4: Send step to close the sync/async bridge
    In my scenario.
    Step 1: Receive the RFC's request message
    Step 2: ????
    Step 3: Get the message from the file
    Step 4: Transform the file's message to RFC's response message
    Step 5: Send the RFC's response message  
    Moreover file adapter works in a polling mechanism..

  • REG : SYNC/ASYNC bridge

    Hi all,
                 I have a scenario where my sender is a syncronus and receiver is asyncronus. I have used sync/async bridge in BPM to acheive this.But when i send the input data from runtime workbench with QOS as BEST EFFORT i  got the following error " Error While sending the message". When checked in moni, the data has sucessfully sent to the receiver and in the BPM flow is failing at the last step (ie SEND step which sents syncronus respose and which ends the bridge)
    The steps i used in BPM are
    RECEIVE(start of sync/async bridge)--> SEND(which sends data to receiver)--
    >SEND(which ends the sync/asynbridge) The response that i send is same which i receive(input data) , so i didnot use any  step for response .
    I ran the wizard for 2 times :
    1) from my source to BPM in which is syncronus.
    2)from BPM to receiver which is asyncronus.
    Can anyone please provide me solution for the above problem.

    Hi Srinivas,
    In BPM second step,
    Send step it would configure the properties as a " Synchronous". then only response back to the sender.
    Regards,
    sateesh

  • RFC -File Sync Async bridge RFC Adapter Exception

    Hi
    I am using sync async bridge to send a response back to rfc.
    Although there is no error in sxmb_moni as well as the auditlog shows that the response was sent successfully to rfc.. still the RFC adapter gives the following error with no response sent to RFC..
    Error in processing caused by: com.sap.aii.af.rfc.RfcAdapterException: failed to identify XML document:java.lang.Exception: javax.xml.parsers.FactoryConfigurationError: Provider com.sap.engine.lib.jaxp.SAXParserFactoryImpl not found
    please help

    Solved the problem..
    The problem could be due to the following..
    1. the response structure was just a single character..while i was sending a whole string..
    2. I restarted the server...probably the problem
    javax.xml.parsers.FactoryConfigurationError: Provider com.sap.engine.lib.jaxp.SAXParserFactoryImpl not found
    system property must have set mismatch for the SAXFactoryImpl.... by deploying modules before in which i was using SAX parser.. may be the i set the system property earlier to other provider dont remember...
    Hope this information will be useful to someone in future using Sync/Async bridge

  • Exercise for sync/async bridge scenario

    Hi,
    Can anybody send me exercise scenario or link for sync/async bridge scenario?
    Thanks
    Narayana

    Hi Balaji,
    pls check this weblogs
    /people/venkataramanan.parameswaran/blog/2007/01/18/syncasync-communication-in-jms-adapter-without-bpm-sp19
    /people/sriram.vasudevan3/blog/2005/01/11/demonstrating-use-of-synchronous-asynchronous-bridge-to-integrate-synchronous-and-asynchronous-systems-using-ccbpm-in-sap-xi
    /people/dmitry.govberg/blog/2006/12/20/mainframe-and-sap-integration--the-synchronous-case
    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]
    conversations
    Sync - Async Bridge
    BPM Sync/Async Problem
    BPM Design using sync-async  bridge
    Regards,
    Ram

  • 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

  • Doubt on Sync-Async  bridge using BPM

    Hi Experts,
                     I had a doubt on Sync-Async  bridge using BPM,
       1. If sender system is SAP system and receiver system is non-sap system then while configuring in Integration Directory how many  Receiver Determinations should be done ?
    2.Plz explain if we have 2 receivers i.e one sender SAP system and 2 non-sap systems then what will be the no. of receiver determinations?
    3.How we have to count no. of receiver determinations if we have 2 receivers and 1 receiver system? If so what is the no. of receiver determinations in case of 1 receiver syst and 2 receiver systems?
    Plz clarify above questions  good answers will be definetly rewarded.
                                                                                    Regards,
                                                                                    Vinod.

    vinod,
    ... Sync-Async bridge and Recievr determination are not related....
    Sync-Async bridge means.. u r sending some request syncronously...and u r expecting the response also in synchronous way... but u r not getting the response  directly...u r getting it via BPM..i.e asynchornously.....
    see here what is the  Use of Synch - Asynch bridge in ccBPM
    /people/sriram.vasudevan3/blog/2005/01/11/demonstrating-use-of-synchronous-asynchronous-bridge-to-integrate-synchronous-and-asynchronous-systems-using-ccbpm-in-sap-xi
    and here if u have 2 reciver... u have to create 2 receiver determination and ofcourse for BPM one reciver dtrmination is required.... since in BPM related scenario BPM will act as a reciver...BPM(IP) wil first recive the message then it will be forwarded to Receiver system!!! so total 3.
    <b>3.How we have to count no. of receiver determinations if we have 2 receivers and 1 receiver system? If so what is the no. of receiver determinations in case of 1 receiver syst and 2 receiver systems?</b>
    r u telling that u r having two recivers and each receiver is receiving messages using 2 interaces???
    u have 2 use 2 receiver determination and 4 interface determination.
    regards
    biplab

  • Use of sync async bridge for webservices

    Hi ,
    We have a scenario where we need to send a data from ERP system to PI via webservice. PI communicates with a third party system via webservice.
    The data can be posted to this third party system using webservices. The third party system then reads some data asynchronosly and sends the data to PI . We need this data to be sent to the synchronous webservice from ERP system.
    Can we use the sync async bridge for this scenario. Some details on how we can do this will be very helpful..
    Thanks
    Bharathwaj

    Hi Abhishek,
    Thanks for the immediate reply.
    The scenario is 
    ERP <---WS/SOAP--->PI -----WS /SOAP of 3rd party---> 3rd Party system (X).
                                                       PI  <------- WS of PI
                X posts the data to a backend. THe system X then picks some processed information. This system is not capable of sending the response synchronosly. It can post this data to PI once the data is available. Now PI needs to take this data and post it to the WS request from ERP.
    Hope I have provided some clarity on the scenarion..
    Thanks again.
    Bharathwaj
    Edited by: Bharathwaj on Aug 11, 2009 4:59 PM

  • 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

  • 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

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