How To Fix RSM1238 - No delta activation necessary for data source &1 in source system &2

SAP Error Message - Details

• Message type: E = Error

• Message class: RSM1 - Messages for AWB, Scheduler and Monitor (new)

• Message number: 238

• Message text: No delta activation necessary for data source &1 in source system &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSM1238 - No delta activation necessary for data source &1 in source system &2 ?

  The SAP error message RSM1238 indicates that there is no delta activation necessary for a specific data source in a source system. This typically occurs in the context of SAP BW (Business Warehouse) when working with delta data extraction from a source system.
  Cause:
  
  No Delta Data Available: The most common reason for this error is that there are no new or changed records in the source system since the last delta extraction. This means that the delta queue is empty, and therefore, there is nothing to activate.
  Initial Load Completed: If you have just completed an initial load for the data source, the delta mechanism may not yet be activated, or it may not be necessary until new data is available.
  Configuration Issues: There may be issues with the configuration of the data source or the delta process, such as incorrect settings in the source system or in the BW system.
  Data Source Status: The data source might not be set up correctly for delta extraction, or it may be in a state that does not allow delta extraction.
  
  Solution:
  
  Check Delta Queue: Verify if there are any records in the delta queue of the source system. You can do this by checking the delta queue in transaction RSA7 in the source system.
  Perform Initial Load: If you have not yet performed an initial load, do so. After the initial load, the delta mechanism will be activated for subsequent data extractions.
  Monitor Data Changes: Ensure that there are indeed changes in the source system that should trigger delta extraction. If no changes have occurred, you will continue to see this message.
  Review Data Source Configuration: Check the configuration of the data source in both the source system and the BW system. Ensure that the data source is set up correctly for delta extraction.
  Check for Errors: Look for any errors in the extraction process that may have occurred previously, which could affect the delta mechanism.
  Reinitialize Delta: If necessary, you can reinitialize the delta for the data source. This involves performing an initial load again and then setting up the delta extraction.
  
  Related Information:
  
  Transaction Codes:
  
  RSA7: Monitor delta queue.
  RSMO: Monitor the status of the delta process.
  RSA1: Data Warehousing Workbench for data source configuration.
  
  
  Documentation: Refer to SAP Help documentation for detailed information on delta extraction and data source configuration.
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to your version of SAP BW or the data source in question.
  
  By following these steps, you should be able to resolve the RSM1238 error and ensure that delta extraction is functioning correctly.