How To Fix RSM1609 - Init simulation and 'early delta' request together does not make sense

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 609

• Message text: Init simulation and 'early delta' request together does not make sense

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSM1609 - Init simulation and 'early delta' request together does not make sense ?

  The SAP error message RSM1609, which states "Init simulation and 'early delta' request together does not make sense," typically occurs in the context of SAP BW (Business Warehouse) data extraction, particularly when dealing with delta loads and initialization requests.
  Cause:
  This error arises when there is a conflict in the request parameters during the data extraction process. Specifically, it occurs when:
  
  An initialization request (which is meant to load all data from the source system) is being processed simultaneously with an early delta request (which is intended to capture changes that occurred after the last delta load).
  The system does not allow both types of requests to be executed at the same time because they serve different purposes and can lead to inconsistencies in the data being loaded.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Request Types: Ensure that you are not trying to execute an initialization request and an early delta request at the same time. You should only run one type of request at a time.
  
  
  Sequential Execution: If you need to perform both operations, execute the initialization request first. Once it has completed successfully, you can then proceed with the early delta request.
  
  
  Monitor Process Chains: If you are using process chains to automate data loading, check the sequence of the steps in the process chain. Make sure that the initialization step is completed before any delta requests are triggered.
  
  
  Review Data Source Settings: Verify the settings of the data source in the SAP BW system. Ensure that the data source is configured correctly for either initialization or delta loads, but not both at the same time.
  
  
  Check for Locks: Sometimes, locks on the data source can cause this issue. Ensure that there are no locks preventing the execution of the requests.
  
  
  Consult Logs: Review the logs for more detailed error messages or warnings that might provide additional context about the failure.
  
  
  Related Information:
  
  Initialization Request: This is a full data load from the source system to the BW system, typically done when setting up a new data source or after significant changes in the data model.
  Delta Request: This captures only the changes (inserts, updates, deletes) that have occurred since the last successful delta load. Early delta requests are used to capture changes that happen during the initialization process.
  SAP Notes: Check SAP Notes related to your specific version of SAP BW for any known issues or patches that might address this error.
  
  By following these steps, you should be able to resolve the RSM1609 error and ensure that your data extraction processes run smoothly.