How To Fix RAP_PLMI_SPC029 - Composition header with the given change number already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: RAP_PLMI_SPC -

• Message number: 029

• Message text: Composition header with the given change number already exists

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RAP_PLMI_SPC029 - Composition header with the given change number already exists ?

  The SAP error message RAP_PLMI_SPC029, which states "Composition header with the given change number already exists," typically occurs in the context of the SAP S/4HANA system when working with the Rapid Application Programming (RAP) model. This error indicates that there is an attempt to create or update a composition header (which is part of a business object) with a change number that already exists in the system.
  Cause:
  
  
  Duplicate Change Number: The most common cause of this error is that the change number you are trying to use for the composition header already exists in the database. This can happen if:
  
  You are trying to create a new entry with a change number that has already been used.
  There is a concurrent process that has already created or updated a composition header with the same change number.
  
  
  
  Data Integrity Constraints: The system enforces data integrity rules that prevent duplicate entries for certain fields, including change numbers.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Existing Entries: 
  
  Query the database or use transaction codes (like SE11 or SE16) to check if a composition header with the specified change number already exists. 
  If it does, you may need to use a different change number for your new entry.
  
  
  
  Use Unique Change Numbers: 
  
  Ensure that the change number you are using is unique and not already in use by another composition header.
  
  
  
  Review Business Logic: 
  
  If your application logic is generating change numbers, review the logic to ensure it generates unique values.
  
  
  
  Handle Concurrent Processes: 
  
  If multiple processes are trying to create or update the same composition header simultaneously, implement proper locking mechanisms or transaction handling to avoid conflicts.
  
  
  
  Consult Documentation: 
  
  Review SAP documentation or notes related to RAP and composition headers for any specific guidelines or updates that may pertain to your version of SAP.
  
  
  
  Contact SAP Support: 
  
  If the issue persists and you cannot identify the cause, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
  RAP Documentation: Familiarize yourself with the SAP RAP model documentation to understand how composition headers work and the rules governing them.
  Transaction Codes: Familiarize yourself with transaction codes like SE11 (Data Dictionary), SE16 (Data Browser), and others that can help you investigate the database entries.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.