How To Fix CM_EXPERT021 - Unable to create identifier (&1/&2/&3)

SAP Error Message - Details

• Message type: E = Error

• Message class: CM_EXPERT - Messages for Expert

• Message number: 021

• Message text: Unable to create identifier (&1/&2/&3)

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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Smart SAP Assistant

• What is the cause and solution for SAP error message CM_EXPERT021 - Unable to create identifier (&1/&2/&3) ?

  The SAP error message CM_EXPERT021, which states "Unable to create identifier (&1/&2/&3)," typically occurs in the context of the SAP Change Management or Configuration Management processes. This error indicates that the system is unable to create a unique identifier for a specific object or entity, which can be due to various reasons.
  Causes:
  
  Duplicate Identifiers: The identifier you are trying to create may already exist in the system, leading to a conflict.
  Authorization Issues: The user may not have the necessary permissions to create the identifier.
  Configuration Issues: There may be issues with the configuration settings in the system that prevent the creation of new identifiers.
  Data Consistency: There may be inconsistencies in the data that are preventing the creation of the identifier.
  System Limitations: The system may have reached a limit on the number of identifiers that can be created.
  
  Solutions:
  
  Check for Duplicates: Verify if the identifier you are trying to create already exists. If it does, consider using a different identifier.
  Review Authorizations: Ensure that the user has the necessary authorizations to create identifiers. You may need to consult with your SAP security team to adjust permissions.
  Configuration Review: Check the configuration settings related to the object you are trying to create. Ensure that all necessary settings are correctly configured.
  Data Consistency Check: Run consistency checks on the relevant data to identify and resolve any inconsistencies that may be causing the issue.
  Consult SAP Notes: Look for relevant SAP Notes or documentation that may address this specific error. SAP frequently updates its knowledge base with solutions to common issues.
  Contact SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance.
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may need to use specific transaction codes to check for existing identifiers or to review configurations (e.g., SE11 for Data Dictionary, SE80 for Object Navigator).
  Logs and Traces: Check system logs (SM21) or application logs (SLG1) for more detailed error messages that may provide additional context for the issue.
  Documentation: Review SAP documentation related to Change Management or Configuration Management for best practices and guidelines on identifier creation.
  
  By following these steps, you should be able to diagnose and resolve the CM_EXPERT021 error in your SAP system.