How To Fix SR321 - Inbound queue name & cannot be used for classic qRFC


SR321 - Overview

  • Message type: E = Error

  • Message class: SR - RFC utilities

  • Message number: 321

  • Message text: Inbound queue name & cannot be used for classic qRFC

  • Show details Hide details
  • What causes this issue?

    When you called classic qRFC, you used an inbound queue name that cannot
    be used with classic inbound qRFC. This queue name has been implemented
    for bgRFC instead.

    System Response

    The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

    How to fix this error?

    Check whether this queue name is supposed to be used for classic inbound
    qRFC or outbound bgRFC.
    You can use entries in a Customizing table to specify whether a queue
    name can be used for classic qRFC. Queue name prefixes are stored in
    this Customizing table. Any queue names that match the prefixes in this
    table are not permitted as queue names for classic qRFC.
    In some circumstances you can delete the registration of the queue name
    prefix in transaction SBGRFCCONF.
    The queue name prefix can be deleted only if no more inbound bgRFC
    queues exist with this prefix. Since this Customizing table is a
    cross-client table, there can also be no queues with this prefix in any
    other clients. You can use transaction SBGRFCMON to check this.

    Procedure for System Administrators


    Error message extract from SAP system. Copyright SAP SE.


Smart SAP Assistant

  • What is the cause and solution for SAP error message SR321 - Inbound queue name & cannot be used for classic qRFC ?
    The SAP error message SR321 indicates that the specified inbound queue name cannot be used for classic qRFC (queued Remote Function Call). This error typically arises in scenarios where there is an issue with the configuration of the qRFC or the inbound queue itself.
    
    Cause: Queue Configuration: The inbound queue may not be properly configured or may not exist in the system. Queue Type: The queue might be of a type that is not compatible with classic qRFC. Transport Layer Issues: There may be issues with the transport layer or the connection between systems. System Settings: The system settings for qRFC may not be correctly set up, leading to this error. Namespace Issues: The queue name might be using a namespace that is not allowed or recognized by the system.
    Solution: Check Queue Configuration: Verify that the inbound queue is correctly defined in the system. You can check this in transaction SMQ1 (for outbound queues) and SMQ2 (for inbound

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