How To Fix R8399 - Basis DataSource &1 for append DataSource &2 does not exist

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 399

• Message text: Basis DataSource &1 for append DataSource &2 does not exist

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message R8399 - Basis DataSource &1 for append DataSource &2 does not exist ?

  The SAP error message R8399 indicates that there is an issue with a DataSource in the context of SAP BW (Business Warehouse) or SAP BI (Business Intelligence). Specifically, the error message states that the Basis DataSource for the append DataSource does not exist. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  
  Missing Basis DataSource: The primary reason for this error is that the Basis DataSource (the original DataSource that the append DataSource is based on) does not exist in the system. This could happen if the Basis DataSource was deleted or not activated properly.
  
  
  Incorrect Configuration: The append DataSource may be incorrectly configured to point to a Basis DataSource that is not available or has been renamed.
  
  
  Transport Issues: If the DataSource was transported from one system to another (e.g., from development to production), there may have been issues during the transport process that caused the Basis DataSource to not be included.
  
  
  Solution:
  
  
  Check Existence of Basis DataSource:
  
  Go to the DataSource maintenance transaction (e.g., RSA1 or RSO2) and check if the Basis DataSource exists.
  If it does not exist, you may need to recreate it or transport it from another system where it exists.
  
  
  
  Recreate or Activate the Basis DataSource:
  
  If the Basis DataSource is missing, you can recreate it using the appropriate configuration settings.
  If it exists but is not activated, activate it.
  
  
  
  Check Append DataSource Configuration:
  
  Verify the configuration of the append DataSource to ensure it is correctly pointing to the existing Basis DataSource.
  If necessary, adjust the settings to point to the correct Basis DataSource.
  
  
  
  Transport Check:
  
  If the DataSource was recently transported, check the transport logs to ensure that all necessary objects were included in the transport request.
  If needed, re-transport the Basis DataSource.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to the specific DataSource for any additional configuration steps or prerequisites.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  RSA1: Data Warehousing Workbench
  RSO2: DataSource Maintenance
  RSPC: Process Chain Maintenance (if applicable)
  
  
  
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide additional guidance on this error.
  
  
  DataSource Types: Understand the types of DataSources (e.g., standard, generic, and append) and their relationships to ensure proper configuration.
  
  
  Support: If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance.
  
  
  By following these steps, you should be able to resolve the R8399 error and ensure that your DataSources are correctly configured in your SAP BW/BI environment.