How To Fix /IWNGW/CM_HUB019 - BG RFC Queue: Duplicate queue id generated


/IWNGW/CM_HUB019 - Overview

  • Message type: E = Error

  • Message class: /IWNGW/CM_HUB -

  • Message number: 019

  • Message text: BG RFC Queue: Duplicate queue id generated

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  • Self-Explanatory Message

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    To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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/IWNGW/CM_HUB019 - Details

  • The SAP error message /IWNGW/CM_HUB019 BG RFC Queue: Duplicate queue id generated typically indicates that there is an issue with the generation of background RFC (Remote Function Call) queue IDs in the SAP system. This can occur in scenarios where multiple processes are trying to create or access the same queue ID, leading to a conflict.
    
    Cause: Concurrency Issues: Multiple processes or threads may be trying to create a queue with the same ID simultaneously. Configuration Errors: Incorrect configuration settings in the SAP system related to background processing or RFC settings. System Bugs: There may be bugs in the SAP version you are using that lead to improper handling of queue IDs. Database Issues: Problems with the underlying database that affect the generation of unique identifiers.
    Solution: Check for Concurrency: Review the processes that are generating the queue IDs. Ensure that they are not running concurrently in a way that could lead to duplication. Review Configuration: Check the

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