How To Fix DMCLG735 - &1-&2: Non unique key of check table &3

SAP Error Message - Details

• Message type: E = Error

• Message class: DMCLG - DMC Tool Development

• Message number: 735

• Message text: &1-&2: Non unique key of check table &3

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DMCLG735 - &1-&2: Non unique key of check table &3 ?

  The SAP error message DMCLG735 indicates that there is a non-unique key in a check table, which means that the system has found duplicate entries in a table that is supposed to have unique keys. This can occur during data validation processes, such as when you are trying to insert or update records in a database table that references a check table.
  Cause:
  
  Duplicate Entries: The primary cause of this error is the presence of duplicate entries in the check table specified in the error message. This can happen due to incorrect data entry, data migration issues, or inconsistencies in the data model.
  Data Integrity Issues: If the application logic does not enforce uniqueness constraints properly, it can lead to multiple records with the same key values being inserted into the check table.
  Configuration Errors: Sometimes, configuration settings in the SAP system may not be set up correctly, leading to this error.
  
  Solution:
  
  Identify Duplicates: Use SQL queries or transaction codes (like SE11 or SE16) to check the contents of the check table specified in the error message. Look for duplicate entries based on the key fields.
  SELECT key_field1, key_field2, COUNT(*)
  FROM check_table
  GROUP BY key_field1, key_field2
  HAVING COUNT(*) > 1;
  
  Remove Duplicates: Once you identify the duplicates, you will need to decide how to handle them. You can either delete the duplicate entries or modify them to ensure that they are unique.
  Data Validation: Implement data validation checks in your application logic to prevent duplicate entries from being created in the future.
  Check Table Configuration: Review the configuration of the check table to ensure that it is set up correctly with the appropriate unique constraints.
  Consult Documentation: Refer to SAP documentation or support notes related to the specific check table and error message for additional guidance.
  
  Related Information:
  
  Transaction Codes: Use transaction codes like SE11 (Data Dictionary) or SE16 (Data Browser) to analyze the check table.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Data Model: Review the data model and relationships between tables to ensure that they are correctly defined and enforced.
  
  If the issue persists after following these steps, consider reaching out to SAP support for further assistance.