How To Fix USMD1599 - Data model &1, relationship &2: Value &3 exists twice

SAP Error Message - Details

• Message type: E = Error

• Message class: USMD1 - Datenmodel

• Message number: 599

• Message text: Data model &1, relationship &2: Value &3 exists twice

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.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message USMD1599 - Data model &1, relationship &2: Value &3 exists twice ?

  The SAP error message USMD1599 typically indicates that there is a duplicate value in a specific data model relationship. This error occurs when the system detects that a value that should be unique is present more than once in the context of the specified data model and relationship.
  Cause:
  
  Duplicate Entries: The most common cause of this error is that there are duplicate entries in the data model for the specified relationship. This could happen due to data import errors, manual data entry mistakes, or issues during data migration.
  Incorrect Configuration: Sometimes, the configuration of the data model may not enforce uniqueness properly, leading to duplicates being allowed.
  Data Consistency Issues: If the data has been modified or updated without proper checks, it may lead to inconsistencies, including duplicates.
  
  Solution:
  
  Identify Duplicates: Use transaction codes like SE16 or SE11 to query the relevant database table and identify the duplicate entries for the specified value in the context of the data model and relationship.
  Data Cleanup: Once duplicates are identified, you will need to decide how to handle them. This could involve:
  
  Deleting the duplicate entries.
  Merging the duplicates if they contain different information that needs to be preserved.
  Correcting the data entry to ensure that only unique values exist.
  
  
  Review Data Model Configuration: Check the configuration of the data model to ensure that it is set up to enforce uniqueness where necessary. This may involve adjusting settings or constraints in the data model.
  Re-run the Process: After resolving the duplicates, re-run the process that triggered the error to ensure that it completes successfully.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE16 (Data Browser), SE11 (Data Dictionary), and others that can help you analyze and manage data.
  Data Model Documentation: Review the documentation for the specific data model and relationship to understand the expected data structure and constraints.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message, as there may be specific fixes or recommendations provided by SAP.
  
  By following these steps, you should be able to resolve the USMD1599 error and ensure that your data model maintains the integrity and uniqueness of its entries.