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

USMD1599 - Overview

• 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.

Unfortunately, there isn't any extra information in this error notice.

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USMD1599 - Details

• 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