How To Fix CM_EXPERT340 - An error occurred when reading the recursive composition

SAP Error Message - Details

• Message type: E = Error

• Message class: CM_EXPERT - Messages for Expert

• Message number: 340

• Message text: An error occurred when reading the recursive composition

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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.

Unfortunately, there isn't any extra information in this error notice.

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Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CM_EXPERT340 - An error occurred when reading the recursive composition ?

  The SAP error message CM_EXPERT340, which states "An error occurred when reading the recursive composition," typically occurs in the context of SAP's classification and variant configuration functionalities. This error is often related to issues with the configuration of materials, classes, or characteristics in the SAP system.
  Causes:
  
  Recursive Composition: The error may arise when there is a recursive relationship in the configuration of materials or classes. This means that a material or class is referencing itself directly or indirectly, leading to an infinite loop.
  Incorrect Configuration: There may be incorrect or incomplete configuration settings in the variant configuration model, such as missing dependencies or incorrect characteristic values.
  Data Integrity Issues: There could be issues with the underlying data, such as missing or inconsistent entries in the classification tables.
  Transport Issues: If the configuration was recently transported from one system to another, there may be inconsistencies or missing objects in the target system.
  
  Solutions:
  
  Check Configuration: Review the configuration of the material or class that is causing the error. Ensure that there are no recursive references and that all dependencies are correctly defined.
  Data Consistency: Verify the integrity of the data in the classification tables. Check for any missing or inconsistent entries that could be causing the issue.
  Debugging: If you have access to debugging tools, you can trace the execution to identify where the error occurs. This may provide insights into the specific configuration or data causing the problem.
  Transport Review: If the issue arose after a transport, review the transport logs and ensure that all necessary objects were transported correctly.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates available that resolve known issues.
  Consult Documentation: Review the SAP documentation related to variant configuration and classification to ensure that best practices are being followed.
  
  Related Information:
  
  SAP Community: Engaging with the SAP Community forums can provide insights from other users who may have encountered similar issues.
  SAP Support: If the problem persists, consider reaching out to SAP Support for assistance. They can provide more detailed troubleshooting based on your specific system configuration.
  Training and Resources: Consider additional training or resources on SAP variant configuration and classification to better understand how to avoid such issues in the future.
  
  By following these steps, you should be able to identify and resolve the underlying cause of the CM_EXPERT340 error in your SAP system.