How To Fix RSDS209 - Duplicate data records returned; indicator is not checked

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDS - New DataSource

• Message number: 209

• Message text: Duplicate data records returned; indicator is not checked

What causes this issue?

The <DS><DS:DE.RSDUPREC>Delivery of Duplicate Data Records</></> flag is
set for the DataSource. It is not a master data or text DataSource,
however. BW therefore has no checks or special handling for duplicate
data records.

System Response

The system will ignore this flag.

How to fix this error?

Check yourself in the conversion, preferably in the end routine, that no
duplicate data records have been posted.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSDS209 - Duplicate data records returned; indicator is not checked ?

  The SAP error message RSDS209 indicates that a query or data extraction process has returned duplicate data records, and the "Remove Duplicate Records" indicator is not checked. This can occur in various scenarios, particularly when working with SAP BW (Business Warehouse) or SAP HANA.
  
  Cause:
  
  Data Model Design: The underlying data model may have duplicates due to how data is structured or loaded into the system. This can happen if the same data is loaded multiple times without proper deduplication.
  Query Configuration: The query or data extraction settings may not be configured to handle duplicates, leading to multiple records being returned for the same entity.
  Join Conditions: If the query involves multiple tables, improper join conditions can lead to Cartesian products, resulting in duplicate records.
  Data Source Issues: The data source itself may contain duplicate entries, which are then reflected in the query results.
  
  
  Solution:
  
  Check Data Source: Review the data source to ensure that it does