How To Fix R8204 - Compare DataSource &1:&2 - &3

SAP Error Message - Details

• Message type: E = Error

• Message class: R8 - Messages from the meta data generation

• Message number: 204

• Message text: Compare DataSource &1:&2 - &3

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message R8204 - Compare DataSource &1:&2 - &3 ?

  The SAP error message R8204 "Compare DataSource &1:&2 - &3" typically occurs in the context of data extraction and data transfer processes, particularly when working with SAP BW (Business Warehouse) or SAP Data Services. This error indicates that there is a mismatch or inconsistency between the DataSource and the data being processed.
  Cause:
  
  DataSource Mismatch: The structure of the DataSource (e.g., fields, data types) does not match the data being extracted or loaded.
  Inconsistent Data: The data in the source system may have changed, leading to discrepancies with the DataSource definition.
  Configuration Issues: There may be issues with the configuration of the DataSource in the SAP BW system, such as missing fields or incorrect mappings.
  Transport Issues: If the DataSource was transported from one system to another, there may be inconsistencies in the transport process.
  
  Solution:
  
  Check DataSource Definition: Verify the structure of the DataSource in the SAP BW system. Ensure that all fields and data types match the source system.
  Recheck Data Extraction: If the error occurs during data extraction, check the source system for any changes in the data structure or content.
  Update DataSource: If there have been changes in the source system, you may need to update the DataSource in SAP BW to reflect these changes.
  Re-activate DataSource: Sometimes, reactivating the DataSource can resolve inconsistencies. You can do this in the DataSource maintenance transaction (e.g., RSA1).
  Check for Transport Issues: If the DataSource was recently transported, ensure that all related objects were transported correctly and that there are no missing components.
  Consult Logs: Check the logs for more detailed error messages that can provide additional context on the issue.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like RSA1 (Data Warehousing Workbench) to manage DataSources and monitor data loads.
  SAP Notes: Look for relevant SAP Notes that may address specific issues related to the R8204 error message.
  Documentation: Review SAP documentation for best practices on DataSource management and data extraction processes.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support or consulting with a technical expert who specializes in SAP BW or data extraction processes.