How To Fix REORRS034 - External ID &1 is not unique

SAP Error Message - Details

• Message type: E = Error

• Message class: REORRS - Messages for Reservation

• Message number: 034

• Message text: External ID &1 is not unique

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message REORRS034 - External ID &1 is not unique ?

  The SAP error message REORRS034 indicates that there is a problem with the uniqueness of an external ID in the system. This error typically occurs in the context of the SAP Real Estate Management (RE) module, where external IDs are used to identify objects such as properties, contracts, or other entities.
  Cause:
  The error message "External ID &1 is not unique" suggests that the external ID you are trying to use is already assigned to another object in the system. This can happen due to:
  
  Duplicate Entries: The external ID you are trying to create or update already exists in the database for another object.
  Data Migration Issues: If data has been migrated from another system, there may be duplicates that were not properly handled.
  Incorrect Configuration: The system may not be configured to handle external IDs correctly, leading to conflicts.
  
  Solution:
  To resolve the REORRS034 error, you can take the following steps:
  
  
  Check for Duplicates:
  
  Use transaction codes like SE16 or SE11 to check the relevant database tables (e.g., RECN for contracts, REOBJ for objects) to see if the external ID already exists.
  If you find a duplicate, you will need to either change the external ID you are trying to use or delete/modify the existing entry if it is no longer needed.
  
  
  
  Modify the External ID:
  
  If the external ID is indeed in use, consider using a different, unique ID for the new entry you are trying to create.
  
  
  
  Data Cleanup:
  
  If the duplicates are a result of data migration, you may need to perform a data cleanup to ensure that all external IDs are unique.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help resources related to external IDs in the RE module to ensure you are following the correct procedures.
  
  
  
  Check Configuration:
  
  Ensure that the configuration settings for external IDs in your SAP system are set up correctly. This may involve checking the customizing settings in SPRO.
  
  
  
  Contact Support:
  
  If you are unable to resolve the issue, consider reaching out to SAP support or your internal SAP team for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE16 (Data Browser), SE11 (Data Dictionary), and SPRO (SAP Reference IMG) for configuration.
  SAP Notes: Check for any SAP Notes related to the REORRS034 error for specific patches or updates that may address the issue.
  Documentation: Review the SAP Help Portal for detailed information on managing external IDs in the Real Estate Management module.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.