How To Fix RSDMD205 - Check for dupicated entries in X table &1

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDMD - Messages for master data

• Message number: 205

• Message text: Check for dupicated entries in X table &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDMD205 - Check for dupicated entries in X table &1 ?

  The SAP error message RSDMD205 indicates that there are duplicate entries in the specified table (denoted by &1) in the context of the Data Warehousing component of SAP BW (Business Warehouse). This error typically arises during the activation of InfoObjects, InfoProviders, or when loading data into the Data Warehouse.
  Cause:
  The error is caused by the presence of duplicate entries in the specified table. This can happen due to various reasons, such as:
  
  Incorrect data modeling or design.
  Data loading issues where the same data is loaded multiple times.
  Manual entries that inadvertently create duplicates.
  Issues with the data source or transformation logic that lead to duplicate records.
  
  Solution:
  To resolve the RSDMD205 error, you can follow these steps:
  
  
  Identify the Duplicate Entries:
  
  Use transaction codes like SE11 (Data Dictionary) or SE16 (Data Browser) to check the contents of the specified table.
  Execute a SQL query to find duplicates. For example:
  SELECT field1, field2, COUNT(*)
  FROM <table_name>
  GROUP BY field1, field2
  HAVING COUNT(*) > 1
  
  Replace field1, field2, and <table_name> with the actual fields and table name relevant to your case.
  
  
  
  Remove or Correct Duplicates:
  
  Once you identify the duplicates, you can either delete the duplicate entries or correct them based on your business logic.
  If the duplicates are due to a data load process, review the data extraction and transformation logic to prevent future duplicates.
  
  
  
  Re-activate the InfoObject or InfoProvider:
  
  After resolving the duplicates, you may need to re-activate the InfoObject or InfoProvider that was causing the error.
  Use transaction RSD1 to navigate to the InfoObject and activate it again.
  
  
  
  Check Data Load Processes:
  
  Review the data load processes to ensure that they are not introducing duplicates. This may involve checking the source systems, transformation rules, and data flows.
  
  
  
  Implement Data Quality Checks:
  
  Consider implementing data quality checks in your ETL (Extract, Transform, Load) processes to catch duplicates before they enter the Data Warehouse.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  SE11: Data Dictionary
  SE16: Data Browser
  RSD1: InfoObject Maintenance
  
  
  Documentation:
  
  SAP Help Portal for BW/BI documentation.
  SAP Notes related to data modeling and error handling in BW.
  
  
  
  By following these steps, you should be able to resolve the RSDMD205 error and prevent it from occurring in the future.