How To Fix RSD_TREX021 - Only load delta package for table '&1': from SID '&' to SID '&3'

SAP Error Message - Details

• Message type: E = Error

• Message class: RSD_TREX - Messages from TREX Aggregate Area

• Message number: 021

• Message text: Only load delta package for table '&1': from SID '&' to SID '&3'

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSD_TREX021 - Only load delta package for table '&1': from SID '&' to SID '&3' ?

  The SAP error message RSD_TREX021 typically occurs in the context of data loading in SAP BW (Business Warehouse) when there is an issue with delta data loads. This error indicates that the system is trying to load a delta package for a specific InfoProvider (table) but is unable to do so due to some inconsistencies or issues with the delta mechanism.
  Cause:
  
  Delta Queue Issues: The delta queue may not have any new data to load, or it may be in an inconsistent state.
  Data Source Configuration: The data source might not be properly configured for delta loads, or the delta mechanism might not be set up correctly.
  Data Transfer Process (DTP) Settings: The DTP settings may not be correctly defined, leading to issues in fetching the delta data.
  Data Consistency: There may be inconsistencies in the data between the source and target systems, or the data might have been deleted or modified in a way that affects the delta load.
  Technical Issues: There could be technical issues with the underlying database or the SAP BW system itself.
  
  Solution:
  
  Check Delta Queue: Verify the delta queue for the data source. You can use transaction code RSA7 to check the delta queue and ensure that there are records available for loading.
  Reinitialize Delta: If the delta queue is empty or inconsistent, you may need to reinitialize the delta for the data source. This involves setting up a full load followed by a delta load.
  Review DTP Settings: Check the Data Transfer Process (DTP) settings to ensure that they are correctly configured for delta loads. Make sure that the source and target settings are appropriate.
  Monitor Data Load: Use transaction SM37 to monitor the data load jobs and check for any errors or warnings that might provide more context on the issue.
  Check for Data Consistency: Ensure that the data in the source system is consistent and that there are no issues with the data that could affect the delta load.
  Consult Logs: Review the application logs (transaction SLG1) for any additional error messages or warnings that could provide more insight into the problem.
  
  Related Information:
  
  Delta Mechanism: Understand how the delta mechanism works in SAP BW, including how it captures changes in the source system.
  SAP Notes: Check for any relevant SAP Notes that might address known issues related to this error message.
  Documentation: Refer to SAP documentation for best practices on setting up and managing delta loads in BW.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or BW team for further investigation and support.