How To Fix UR001 - System error: tried to insert duplicate records in table &1

SAP Error Message - Details

• Message type: E = Error

• Message class: UR -

• Message number: 001

• Message text: System error: tried to insert duplicate records in table &1

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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Smart SAP Assistant

• What is the cause and solution for SAP error message UR001 - System error: tried to insert duplicate records in table &1 ?

  The SAP error message UR001, which indicates a "System error: tried to insert duplicate records in table &1," typically occurs when there is an attempt to insert a record into a database table that already contains a record with the same unique key or primary key. This can happen in various scenarios, such as during data uploads, batch processing, or when executing certain transactions.
  Causes:
  
  Duplicate Data: The most common cause is that the data being inserted already exists in the target table, violating the unique constraint.
  Incorrect Logic in Custom Code: If there is custom ABAP code or enhancements that handle data insertion, there may be logic errors leading to attempts to insert duplicates.
  Data Migration Issues: During data migration or uploads, if the source data contains duplicates or if the mapping is incorrect, it can lead to this error.
  Concurrency Issues: If multiple processes are trying to insert the same record simultaneously, it can lead to this error.
  
  Solutions:
  
  Check for Duplicates: Before inserting data, ensure that the record does not already exist in the table. You can do this by querying the table for the unique key.
  Modify Custom Code: If the error is caused by custom ABAP code, review the logic to ensure it correctly handles existing records. Implement checks to prevent duplicate inserts.
  Data Cleansing: If the error arises during data uploads, review the source data for duplicates and clean it up before the upload.
  Use INSERT ... ON DUPLICATE KEY UPDATE: If applicable, consider using SQL statements that handle duplicates gracefully, such as updating existing records instead of inserting new ones.
  Transaction Management: Ensure that transactions are managed properly to avoid concurrency issues. Use appropriate locking mechanisms if necessary.
  
  Related Information:
  
  Table Structure: Understand the structure of the table in question, including its primary keys and unique constraints.
  Transaction Codes: Identify the transaction codes or programs that are causing the error to narrow down the source of the problem.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Debugging: If you have access to the development environment, consider debugging the process to identify where the duplicate insert is being attempted.
  
  By addressing the root cause of the duplicate record attempt, you can resolve the UR001 error and ensure smooth data processing in your SAP system.