How To Fix /IWBEP/SBOD124 - Referential Constraint for principal key '&1' is not unique

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/SBOD -

• Message number: 124

• Message text: Referential Constraint for principal key '&1' is not unique

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/SBOD124 - Referential Constraint for principal key '&1' is not unique ?

  The SAP error message /IWBEP/SBOD124 Referential Constraint for principal key '&1' is not unique typically occurs in the context of SAP Gateway or OData services when there is an issue with the uniqueness of a key in a data model. This error indicates that the system has detected a violation of referential integrity, meaning that the principal key (the key that is supposed to be unique) is not unique in the context of the data being processed.
  Cause:
  
  Duplicate Entries: The most common cause of this error is that there are duplicate entries in the database for the principal key that is being referenced. This could happen due to data inconsistencies or errors during data entry.
  Incorrect Data Model Configuration: The data model may not be correctly defined, leading to ambiguity in how keys are interpreted.
  Improper Relationships: The relationships between entities in the data model may not be properly defined, causing the system to misinterpret the uniqueness of the keys.
  
  Solution:
  
  
  Check for Duplicates: 
  
  Query the database table associated with the principal key to identify any duplicate entries. You can use SQL queries to find duplicates based on the key field.
  Example SQL query to find duplicates:
  SELECT key_field, COUNT(*)
  FROM your_table
  GROUP BY key_field
  HAVING COUNT(*) > 1;
  
  If duplicates are found, you will need to resolve them by either deleting or merging the records.
  
  
  
  Review Data Model:
  
  Ensure that the data model is correctly defined in the SAP Gateway service. Check the entity types and their keys in the service definition.
  Make sure that the principal key is correctly marked as unique in the data model.
  
  
  
  Check Relationships:
  
  Review the relationships between entities in the data model. Ensure that foreign keys are correctly defined and that they reference unique keys in the related entities.
  
  
  
  Data Consistency:
  
  If the data is being imported or migrated, ensure that the data consistency checks are in place to prevent duplicates from being introduced.
  
  
  
  Testing:
  
  After making the necessary changes, test the OData service again to ensure that the error is resolved.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or patches related to this error.
  Transaction Codes: Use transaction codes like SE11 (Data Dictionary) to check the table definitions and SE80 (Object Navigator) to review the OData service definitions.
  Debugging: If the issue persists, consider debugging the OData service to trace where the error is being triggered.
  
  By following these steps, you should be able to identify and resolve the issue causing the /IWBEP/SBOD124 error in your SAP system.