How To Fix RSAOLTP334 - Doubled key in DataSource &1 from source system &2 with field &3

SAP Error Message - Details

• Message type: E = Error

• Message class: RSAOLTP - Notifications in OLTP Source Environment

• Message number: 334

• Message text: Doubled key in DataSource &1 from source system &2 with field &3

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSAOLTP334 - Doubled key in DataSource &1 from source system &2 with field &3 ?

  The SAP error message RSAOLTP334 indicates that there is a problem with duplicate keys in a DataSource when extracting data from a source system. This error typically occurs in the context of SAP BW (Business Warehouse) when trying to load data from an OLTP (Online Transaction Processing) system.
  Cause:
  The error arises when the DataSource in the source system contains multiple records with the same key for a specific field. This can happen due to:
  
  Data Quality Issues: The source system may have duplicate entries for the key field, which violates the uniqueness constraint expected by the DataSource.
  Incorrect DataSource Configuration: The DataSource may not be configured correctly to handle the data structure, leading to unexpected duplicates.
  Changes in Source Data: If the data in the source system has changed (e.g., new records added or existing records modified), it may lead to duplicates that were not present before.
  
  Solution:
  To resolve the RSAOLTP334 error, you can take the following steps:
  
  
  Identify Duplicates:
  
  Query the source system to identify the records that are causing the duplication. You can use SQL queries or transaction codes to find duplicates based on the key field specified in the error message.
  
  
  
  Data Cleansing:
  
  Once you identify the duplicates, you may need to clean the data in the source system. This could involve:
  
  Merging duplicate records.
  Deleting unnecessary duplicates.
  Correcting data entry errors.
  
  
  
  
  
  Adjust DataSource Configuration:
  
  Review the configuration of the DataSource in the source system. Ensure that it is set up correctly to handle the data structure and that it is not expecting unique keys where duplicates are valid.
  
  
  
  Use a Transformation:
  
  If duplicates are valid in the source system, consider using a transformation in SAP BW to handle duplicates appropriately. You can aggregate or filter the data during the extraction process.
  
  
  
  Test the Extraction:
  
  After making the necessary changes, test the data extraction process again to ensure that the error is resolved.
  
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like RSA1 (Data Warehousing Workbench) to manage DataSources and monitor data loads.
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific DataSource or error message.
  Documentation: Review SAP documentation for best practices on data extraction and handling duplicates in BW.
  
  By following these steps, you should be able to resolve the RSAOLTP334 error and ensure smooth data extraction from your source system.