How To Fix USMD2300 - Entity type &1: You specified rows with identical keys

SAP Error Message - Details

• Message type: E = Error

• Message class: USMD2 - Master Data: UI Modeling

• Message number: 300

• Message text: Entity type &1: You specified rows with identical keys

What causes this issue?

For entity type &V1&, you added rows with identical key fields.

System Response

The system can only save one of the identical rows.

How to fix this error?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message USMD2300 - Entity type &1: You specified rows with identical keys ?

  The SAP error message USMD2300 indicates that there are rows with identical keys in the data you are trying to process for a specific entity type. This typically occurs in the context of Master Data Governance (MDG) when you are trying to create or update records, and the system detects duplicate entries based on the key fields defined for that entity.
  Cause:
  The error is caused by the presence of multiple records that have the same key values. In SAP, each record in a database table is expected to have a unique key. When you attempt to process data (like importing or saving), the system checks for uniqueness and raises this error if it finds duplicates.
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Identify Duplicates: Review the data you are trying to process. Look for rows that have the same key values. You can do this by exporting the data to a spreadsheet and using functions to identify duplicates.
  
  
  Remove or Merge Duplicates: Depending on your business requirements, you can either:
  
  Remove the duplicate rows if they are not needed.
  Merge the data from the duplicate rows into a single row if they contain different information that needs to be preserved.
  
  
  
  Check Data Source: If you are importing data from an external source, ensure that the source data does not contain duplicates. You may need to clean the data before importing it into SAP.
  
  
  Adjust Key Fields: If the key fields are not correctly defined, you may need to adjust the configuration in the MDG settings to ensure that the correct fields are being used as keys.
  
  
  Test the Changes: After making the necessary adjustments, try processing the data again to see if the error persists.
  
  
  Related Information:
  
  Entity Types: The error message specifies an entity type (denoted by &1). Understanding the specific entity type can help you narrow down where the duplicates are occurring.
  MDG Configuration: Familiarize yourself with the configuration settings in SAP MDG related to data modeling and key definitions.
  SAP Notes: Check for any relevant SAP Notes or documentation that may provide additional insights or updates related to this error message.
  Data Validation: Implement data validation checks in your data processing workflows to catch duplicates before they cause errors in SAP.
  
  By following these steps, you should be able to resolve the USMD2300 error and ensure that your data processing in SAP MDG runs smoothly.