How To Fix RSDMD191 - &1 : Data record &2 ('&3') : Duplicate data record

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDMD - Messages for master data

• Message number: 191

• Message text: &1 : Data record &2 ('&3') : Duplicate data record

What causes this issue?

There are duplicates of the data record &2& with the key '&3&' for
characteristic &1&.

System Response

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

How to fix this error?

If this message appears during a data load, maintain the attribute in
the PSA maintenance screens. If this message appears in the master data
maintenance screens, leave the transaction and call it again. This
allows you to maintain your master data.

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 RSDMD191 - &1 : Data record &2 ('&3') : Duplicate data record ?

  The SAP error message RSDMD191 indicates that there is a duplicate data record in the data source or InfoObject you are trying to load or process. This error typically occurs during data extraction, transformation, or loading (ETL) processes in SAP BW (Business Warehouse) or SAP BI (Business Intelligence).
  Cause:
  The error is caused by the presence of duplicate entries in the data source for the specified InfoObject. This can happen due to various reasons, such as:
  
  Incorrect data extraction logic that pulls in the same records multiple times.
  Data quality issues in the source system leading to duplicate records.
  Misconfiguration in the data model or InfoObject settings that does not handle duplicates properly.
  
  Solution:
  To resolve the RSDMD191 error, you can take the following steps:
  
  
  Identify Duplicates:
  
  Check the data source or the underlying database table for duplicate records. You can use SQL queries or data profiling tools to identify duplicates based on the key fields of the InfoObject.
  
  
  
  Data Cleansing:
  
  If duplicates are found, you may need to clean the data in the source system. This could involve removing duplicates or consolidating records based on business rules.
  
  
  
  Adjust Data Extraction Logic:
  
  Review the data extraction logic in your ETL process. Ensure that the extraction does not inadvertently pull in duplicate records. This may involve modifying the selection criteria or filters used in the extraction.
  
  
  
  Modify InfoObject Settings:
  
  Check the settings of the InfoObject in SAP BW. Ensure that the key fields are correctly defined and that the InfoObject is set up to handle duplicates appropriately.
  
  
  
  Use Data Transformation:
  
  If duplicates are acceptable in some scenarios, consider using data transformation techniques to aggregate or summarize the data before loading it into the InfoObject.
  
  
  
  Testing:
  
  After making changes, perform a test load to ensure that the error is resolved and that the data is loaded correctly without duplicates.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to RSDMD191 for any specific patches or updates that may address this issue.
  Data Quality Tools: Consider using data quality tools or features within SAP BW to monitor and manage data quality, which can help prevent duplicate records in the future.
  Documentation: Review SAP documentation on InfoObjects and data modeling best practices to ensure that your data model is designed to minimize duplicates.
  
  By following these steps, you should be able to identify the cause of the duplicate records and implement a solution to resolve the RSDMD191 error.