How To Fix MDG_DT_UI009 - The relation &1 is possibly a duplicate with same From entity &2

SAP Error Message - Details

• Message type: E = Error

• Message class: MDG_DT_UI - Messages related to the Configuration Workbench UI

• Message number: 009

• Message text: The relation &1 is possibly a duplicate with same From entity &2

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 MDG_DT_UI009 - The relation &1 is possibly a duplicate with same From entity &2 ?

  The SAP error message MDG_DT_UI009 indicates that there is a potential duplicate relationship in the Master Data Governance (MDG) system. Specifically, it suggests that the relationship you are trying to create or modify already exists for the same "From" entity. This can occur when you attempt to establish a relationship that is already defined in the system, leading to data integrity issues.
  Cause:
  
  Duplicate Relationship: The most common cause is that the relationship you are trying to create already exists in the system for the specified "From" entity.
  Data Entry Error: There may have been a mistake in data entry, leading to an attempt to create a relationship that is not unique.
  Configuration Issues: The configuration settings for relationships in MDG may not be set up correctly, allowing for duplicate entries.
  
  Solution:
  
  
  Check Existing Relationships: 
  
  Navigate to the relevant master data entity in the MDG application and check the existing relationships for the "From" entity. Ensure that the relationship you are trying to create does not already exist.
  
  
  
  Modify or Delete Existing Relationships: 
  
  If you find that the relationship already exists and is valid, you may need to modify or delete the existing relationship if it is incorrect or no longer needed.
  
  
  
  Review Configuration: 
  
  Check the configuration settings for relationships in the MDG system. Ensure that the rules for creating relationships are correctly defined to prevent duplicates.
  
  
  
  Consult Documentation: 
  
  Review the SAP documentation or help resources related to MDG to understand the specific requirements and constraints for defining relationships.
  
  
  
  Error Handling: 
  
  If you are developing or customizing the MDG application, implement error handling to catch such issues and provide meaningful feedback to users.
  
  
  
  Related Information:
  
  MDG Configuration: Understanding how to configure relationships in MDG is crucial. This includes defining relationship types, cardinality, and any constraints that apply.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide additional guidance on handling this error.
  User Training: Ensure that users involved in data entry and management are trained on the importance of unique relationships and how to check for existing entries before creating new ones.
  
  By following these steps, you should be able to resolve the MDG_DT_UI009 error and ensure that your master data relationships are correctly maintained.