How To Fix DNO061 - Duplicate key when inserting into table &1

SAP Error Message - Details

• Message type: E = Error

• Message class: DNO - Messages for General Notifications

• Message number: 061

• Message text: Duplicate key when inserting into table &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DNO061 - Duplicate key when inserting into table &1 ?

  The SAP error message DNO061, which states "Duplicate key when inserting into table &1," indicates that there is an attempt to insert a record into a database table where a unique key constraint is violated. This means that the record you are trying to insert has a key value that already exists in the table.
  Cause:
  
  
  Duplicate Key Value: The most common cause is that the key value you are trying to insert already exists in the table. This could be due to:
  
  An attempt to insert a record with the same primary key or unique index.
  A failure to generate a new unique key value (e.g., if using a sequence or number range).
  Data being inserted from a source that contains duplicates.
  
  
  
  Concurrency Issues: If multiple processes are trying to insert records simultaneously, one process may insert a record with a key that another process is also trying to insert.
  
  
  Incorrect Logic in Code: There may be a logical error in the ABAP code or program that is generating the key values incorrectly.
  
  
  Solution:
  
  
  Check Existing Records: Before inserting a new record, check if a record with the same key already exists in the table. You can do this by querying the table with the key value.
  
  
  Generate Unique Key: Ensure that the key value being generated is unique. If you are using a sequence or number range, verify that it is configured correctly and is not exhausted.
  
  
  Handle Duplicates in Code: Modify the ABAP code to handle potential duplicates gracefully. This could involve:
  
  Using INSERT ... ON DUPLICATE KEY UPDATE if applicable.
  Implementing logic to skip the insert if a duplicate is found.
  
  
  
  Review Data Source: If the data is coming from an external source, ensure that the source data does not contain duplicates.
  
  
  Transaction Management: If multiple processes are involved, consider implementing transaction management to prevent concurrent inserts that could lead to duplicates.
  
  
  Related Information:
  
  Table Structure: Review the structure of the table in question to understand the unique constraints and primary keys defined.
  Database Logs: Check database logs for more detailed error messages or information about the failed insert operation.
  SAP Notes: Look for relevant SAP Notes that may address specific issues related to the table or the error message.
  Debugging: If you have access to the ABAP code, use debugging tools to trace the execution and identify where the duplicate key is being generated.
  
  By following these steps, you should be able to identify the cause of the DNO061 error and implement a solution to prevent it from occurring in the future.