How To Fix MDG_MDF8101 - Changing &1 causes duplicate keys &2

MDG_MDF8101 - Overview

• Message type: E = Error

• Message class: MDG_MDF8 - Change Management

• Message number: 101

• Message text: Changing &1 causes duplicate keys &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MDG_MDF8101 - Changing &1 causes duplicate keys &2 ?

  The SAP error message MDG_MDF8101 ("Changing &1 causes duplicate keys &2") typically occurs in the context of Master Data Governance (MDG) when you attempt to change a master data record in a way that would result in duplicate keys in the database. This is a data integrity issue, as each key (like a unique identifier for a record) must be unique within the system.
  
  Cause:
  The error is triggered when:
  
  You are trying to change a field in a master data record that is supposed to be unique (like a business partner ID, material number, etc.).
  The new value you are trying to assign to this field already exists in another record, leading to a violation of the uniqueness constraint.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Identify the Duplicate Key: 
  
  Check the value you are trying to assign to the field that is causing the error. 
  Look for existing records in the