How To Fix RSDA453 - NLS delta request pair could not be created

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDA - BW Archiving: Messages

• Message number: 453

• Message text: NLS delta request pair could not be created

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDA453 - NLS delta request pair could not be created ?

  The SAP error message RSDA453 indicates that a delta request pair could not be created for a Non-Log-Space (NLS) DataSource. This error typically occurs in the context of SAP BW (Business Warehouse) when dealing with delta loads from a source system.
  Causes:
  
  DataSource Configuration Issues: The DataSource may not be properly configured for delta extraction. This can happen if the delta mechanism is not set up correctly in the source system.
  Missing Delta Queue Entries: If there are no entries in the delta queue for the DataSource, the delta request cannot be created.
  Technical Issues: There may be technical issues in the source system or in the BW system that prevent the delta request from being processed.
  Data Consistency Issues: If there are inconsistencies in the data or if the data is locked, it may prevent the delta request from being created.
  Authorization Issues: Lack of proper authorizations for the user executing the delta load can also lead to this error.
  
  Solutions:
  
  Check DataSource Configuration: Ensure that the DataSource is correctly configured for delta extraction. Verify the settings in the source system and in the BW system.
  Check Delta Queue: Use transaction codes like RSA7 to monitor the delta queue. Ensure that there are entries available for extraction. If the queue is empty, you may need to perform a full load to populate it.
  Reinitialize Delta: If the delta mechanism is not functioning correctly, you may need to reinitialize the delta for the DataSource. This typically involves performing a full load followed by a delta load.
  Check for Locks: Ensure that there are no locks on the data in the source system that could be preventing the delta request from being created.
  Review Authorizations: Check the authorizations of the user executing the delta load to ensure they have the necessary permissions to access the DataSource and perform the extraction.
  Check for Technical Issues: Review system logs and error messages in both the source and BW systems for any technical issues that may be affecting the delta extraction process.
  
  Related Information:
  
  Transaction Codes: 
  
  RSA7: Monitor delta queue.
  RSC3: Check the status of the DataSource.
  RSMO: Monitor the process chain for any issues.
  
  
  SAP Notes: Check SAP Notes related to the specific DataSource or error message for any known issues or patches.
  Documentation: Review SAP documentation on delta extraction and DataSource configuration for best practices and troubleshooting steps.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with SAP support or your technical team for further investigation.