How To Fix /BOBF/CONF_ESR_FETCH036 - Duplicate alternative key &1 detected, refactoring necessary

SAP Error Message - Details

• Message type: E = Error

• Message class: /BOBF/CONF_ESR_FETCH -

• Message number: 036

• Message text: Duplicate alternative key &1 detected, refactoring necessary

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /BOBF/CONF_ESR_FETCH036 - Duplicate alternative key &1 detected, refactoring necessary ?

  The SAP error message /BOBF/CONF_ESR_FETCH036 Duplicate alternative key &1 detected, refactoring necessary typically occurs in the context of the Business Object Processing Framework (BOPF) when there is a conflict with alternative keys defined for a business object. This error indicates that there are duplicate entries for an alternative key in the data being processed, which violates the uniqueness constraint expected by the BOPF framework.
  Cause:
  
  Duplicate Data: The most common cause of this error is that the data being processed contains duplicate entries for the alternative key specified. This could happen due to data inconsistencies or issues during data migration.
  Incorrect Configuration: The alternative keys may not be configured correctly in the BOPF model, leading to conflicts when the framework tries to fetch or manipulate data.
  Data Model Changes: If there have been recent changes to the data model or the business object configuration, it may lead to inconsistencies that result in this error.
  
  Solution:
  
  Identify Duplicates: Check the underlying database table or the data source for duplicates related to the alternative key mentioned in the error message. You can use SQL queries to identify duplicate records.
  SELECT alternative_key_column, COUNT(*)
  FROM your_table
  GROUP BY alternative_key_column
  HAVING COUNT(*) > 1;
  
  Data Cleanup: Once duplicates are identified, you will need to clean up the data. This may involve deleting or merging duplicate records to ensure that each alternative key is unique.
  Review BOPF Configuration: Check the BOPF configuration for the business object to ensure that the alternative keys are defined correctly. Make sure that the keys are intended to be unique and that there are no conflicting definitions.
  Refactor Business Object: If necessary, refactor the business object to redefine the alternative keys or adjust the logic that handles data retrieval and manipulation.
  Testing: After making changes, thoroughly test the business object to ensure that the error no longer occurs and that the functionality works as expected.
  
  Related Information:
  
  BOPF Documentation: Review the SAP documentation on BOPF and alternative keys to understand how they are defined and managed.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide guidance on best practices for managing alternative keys.
  Debugging: If the issue persists, consider using debugging tools to trace the execution flow and identify where the duplicates are being introduced.
  
  By following these steps, you should be able to resolve the error and ensure that your BOPF implementation functions correctly without conflicts related to alternative keys.