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Former Member

RFC synch/asynch

Hi,

RFCs are synchronous by default. So they use BE as QoS.

How to make them Asynchronous so that they will use EO QoS?

In Asynch case will the RFC response be persisted or only request to RFC will be persisted?

thanks in advance,

KP

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4 Answers

  • author's profile photo Former Member
    Former Member
    Posted on Jan 17, 2005 at 12:03 PM

    KP,

    Why would you want to make an RFC call asynchronous?

    You only need to post IDoc in async, in which case you use the IDoc adapter.

    If you want EOIO then you need to use the proxy.

    Regards,

    Simon

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  • Posted on Jan 17, 2005 at 12:58 PM

    Hi KP,

    of course you can use RFC asynchronously. Calling from R/3 use

    CALL FUNCTION 'myFunktion'

    destination 'myDestination'

    IN BACKGROUND TASK...

    Calling from XI use an asynchronous outbound-Interface.

    Anyway there will be no response!

    Regards Udo

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  • author's profile photo Former Member
    Former Member
    Posted on Jan 17, 2005 at 01:04 PM

    If use EO as Qos , then the RFC will be called asynchronously.

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  • author's profile photo Former Member
    Former Member
    Posted on Jan 17, 2005 at 08:34 PM

    Hi,

    transactional RFC (tRFC) and queued RFC (qRFC) are both asynchronous. But the RFC Adapter only supports tRFC, which only uses an outbound buffer (it's not a queue) and matches the QoS EO. On the sending system you can use the transaction SM58 to monitor the outgoing messages. The messages are buffered in the adapter framework, if the target system is not available.

    As said above, on SAP releases prior to 6.20, SAP IDOCs are the only way to use EOIO.

    A tRFC is called by using the additional line 'in background task'.

    In the SAP System, there is no different definition for synchronous and asynchronous RFCs. The asynchronous just only use the importing parameters.

    Regards,

    Christian

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