How To Fix MDC_MODEL073 - A record with the same key already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: MDC_MODEL - Messages In Context Of MDC Model

• Message number: 073

• Message text: A record with the same key already exists

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MDC_MODEL073 - A record with the same key already exists ?

  The SAP error message MDC_MODEL073, which states "A record with the same key already exists," typically occurs in the context of Master Data Management (MDM) or when working with the SAP S/4HANA system, particularly in the area of data modeling or data replication.
  Cause:
  This error usually arises when you attempt to create or replicate a record in a database table where a record with the same unique key already exists. The unique key could be a combination of fields that are defined as unique in the database schema. Common scenarios include:
  
  Duplicate Data Entry: You are trying to create a new entry that has the same key as an existing entry.
  Data Replication Issues: When replicating data from one system to another, if the source data contains duplicates or if the target system already has the data.
  Incorrect Data Mapping: During data import or migration, the mapping of fields may lead to conflicts with existing records.
  
  Solution:
  To resolve the MDC_MODEL073 error, you can take the following steps:
  
  
  Check for Existing Records: 
  
  Query the database or use transaction codes (like SE16 or SE11) to check if a record with the same key already exists.
  Identify the existing record(s) that are causing the conflict.
  
  
  
  Modify the Data:
  
  If you are trying to create a new record, ensure that the key values are unique. Modify the data you are trying to insert to avoid duplication.
  If the record already exists and you need to update it, consider using an update operation instead of an insert.
  
  
  
  Data Cleansing:
  
  If you are importing data, ensure that the source data is cleansed to remove duplicates before the import process.
  Implement validation checks to prevent duplicates from being created in the first place.
  
  
  
  Review Data Replication Settings:
  
  If the error occurs during data replication, review the replication settings and ensure that the source data does not contain duplicates.
  Check the configuration of the replication process to ensure it handles existing records appropriately.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to the specific module you are working with for any additional guidance or known issues.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SE16 (Data Browser), SE11 (Data Dictionary), and others that can help you analyze the data.
  SAP Notes: Check SAP Notes for any specific patches or updates related to this error message.
  Data Model: Understand the data model and the unique constraints defined in the database schema to prevent future occurrences of this error.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.