How To Fix /PM0/ABT_CML027 - Key structure of reminder for reference INFOEXTDT_ID &1 not unique

SAP Error Message - Details

• Message type: E = Error

• Message class: /PM0/ABT_CML -

• Message number: 027

• Message text: Key structure of reminder for reference INFOEXTDT_ID &1 not unique

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PM0/ABT_CML027 - Key structure of reminder for reference INFOEXTDT_ID &1 not unique ?

  The SAP error message /PM0/ABT_CML027 indicates that there is a problem with the uniqueness of a key structure related to a reminder in the context of the SAP Project Management (PM) or Controlling (CO) modules. Specifically, it suggests that the reference INFOEXTDT_ID &1 is not unique, which means that there are multiple entries in the database that share the same key, leading to ambiguity.
  Cause:
  
  Duplicate Entries: The most common cause of this error is the presence of duplicate entries in the database for the specified key structure. This can happen due to incorrect data entry, data migration issues, or system inconsistencies.
  Configuration Issues: There may be issues with the configuration of the key structures in the system, leading to conflicts in how the data is being referenced.
  Data Integrity Issues: If the data integrity is compromised, it can lead to situations where the same identifier is being used for multiple records.
  
  Solution:
  
  
  Check for Duplicates: 
  
  Use transaction codes like SE16 or SE11 to access the relevant database tables and check for duplicate entries for the INFOEXTDT_ID in question.
  Identify and resolve any duplicates by either deleting or merging records as appropriate.
  
  
  
  Data Cleanup: 
  
  If duplicates are found, you may need to perform a data cleanup. This could involve deleting unnecessary records or correcting the data to ensure that each key structure is unique.
  
  
  
  Review Configuration: 
  
  Check the configuration settings related to the key structures in the SAP system. Ensure that the settings are correctly defined to prevent duplicates from being created in the future.
  
  
  
  Consult Documentation: 
  
  Review SAP documentation or notes related to this specific error message for any additional guidance or patches that may address the issue.
  
  
  
  Contact SAP Support: 
  
  If the issue persists after checking for duplicates and reviewing configurations, consider reaching out to SAP support for further assistance. They may provide insights specific to your system version or configuration.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SE16 (Data Browser), SE11 (Data Dictionary), and SE78 (SAP Archive Link) for data inspection and management.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  Data Model Understanding: Understanding the data model and relationships in the PM and CO modules can help in diagnosing the root cause of the issue.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.