How To Fix STGR212 - & lines were not copied because of duplicate keys

SAP Error Message - Details

• Message type: E = Error

• Message class: STGR - Hold store grouping messages

• Message number: 212

• Message text: & lines were not copied because of duplicate keys

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message STGR212 - & lines were not copied because of duplicate keys ?

  The SAP error message STGR212 indicates that there was an attempt to copy lines in a table or structure, but the operation failed due to the presence of duplicate keys. This typically occurs in scenarios where data is being transferred or copied between tables, and the system detects that the keys (which should be unique) are not unique in the source data.
  Cause:
  
  Duplicate Keys: The primary cause of this error is that the source data contains duplicate entries for the key fields that are supposed to be unique. When the system tries to copy these entries, it finds that it cannot do so because it would violate the uniqueness constraint.
  Data Integrity Issues: There may be underlying data integrity issues in the source table, leading to duplicates.
  Incorrect Data Preparation: If the data was prepared or extracted incorrectly, it might have resulted in duplicates being present.
  
  Solution:
  
  
  Identify Duplicates: 
  
  Use SQL queries or SAP transaction codes (like SE16 or SE11) to check the source table for duplicate entries based on the key fields.
  Example SQL query to find duplicates:
  SELECT key_field, COUNT(*)
  FROM your_table
  GROUP BY key_field
  HAVING COUNT(*) > 1;
  
  
  
  
  Remove or Resolve Duplicates:
  
  Once duplicates are identified, you can either remove them or resolve them based on your business logic. This may involve:
  
  Deleting duplicate records.
  Merging records if they contain complementary information.
  Correcting data entry errors.
  
  
  
  
  
  Data Validation: 
  
  Implement data validation checks before copying or transferring data to ensure that duplicates do not exist in the source data.
  
  
  
  Re-attempt the Operation: 
  
  After resolving the duplicates, re-attempt the operation that caused the error.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SE16 (Data Browser) or SE11 (Data Dictionary) to analyze the data in the relevant tables.
  Data Model Understanding: Understand the data model and relationships between tables to ensure that you are aware of how keys are defined and used.
  SAP Notes: Check SAP Notes for any specific patches or updates related to this error message, as there may be known issues or fixes provided by SAP.
  
  By following these steps, you should be able to resolve the STGR212 error and successfully copy the required data without encountering duplicate key issues.