How To Fix CFM_TR_BIW026 - Load in parallel selections cannot be compared

SAP Error Message - Details

• Message type: E = Error

• Message class: CFM_TR_BIW - BW Extractor for CFM

• Message number: 026

• Message text: Load in parallel selections cannot be compared

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CFM_TR_BIW026 - Load in parallel selections cannot be compared ?

  The SAP error message CFM_TR_BIW026, which states "Load in parallel selections cannot be compared," typically occurs in the context of data loading processes, particularly when working with SAP BW (Business Warehouse) or SAP BW/4HANA. This error indicates that there is an issue with the way data is being loaded in parallel, and the selections made for the data load cannot be compared or reconciled.
  Cause:
  
  
  Inconsistent Data Selections: The error often arises when there are multiple parallel data load requests that are trying to access or load data from the same source but with different selection criteria. This inconsistency can lead to conflicts in the data being loaded.
  
  
  Data Source Configuration: If the data source is not configured correctly to handle parallel loads, it may lead to this error. This can happen if the data source is not designed to support concurrent requests.
  
  
  Locking Issues: If one data load request is holding a lock on the data while another request tries to access it, this can lead to conflicts and the error message.
  
  
  Transformation Rules: If there are transformation rules that are not compatible with parallel processing, this can also trigger the error.
  
  
  Solution:
  
  
  Check Data Selections: Review the selection criteria for the data loads that are running in parallel. Ensure that they do not conflict with each other. If necessary, adjust the selections to avoid overlaps.
  
  
  Sequential Loading: If parallel loading is not essential, consider running the data loads sequentially. This can be done by scheduling the data loads to run one after the other instead of simultaneously.
  
  
  Review Data Source Configuration: Ensure that the data source is configured to handle parallel loads. This may involve checking the settings in the data source and making adjustments as needed.
  
  
  Lock Management: Investigate any locking issues that may be occurring. You can use transaction codes like SM12 to check for locks and resolve any conflicts.
  
  
  Transformation Logic: Review the transformation logic to ensure that it is compatible with parallel processing. If necessary, modify the transformation rules to support parallel loads.
  
  
  Monitor Load Processes: Use transaction codes like RSA1 (Data Warehousing Workbench) to monitor the load processes and identify any issues that may be causing the error.
  
  
  Related Information:
  
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error. SAP frequently updates its knowledge base with solutions and workarounds for known issues.
  
  
  Documentation: Review the SAP BW documentation for best practices on data loading and parallel processing. This can provide insights into how to configure your system for optimal performance.
  
  
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed. Other users may have encountered the same error and can provide valuable insights.
  
  
  By following these steps, you should be able to identify the root cause of the CFM_TR_BIW026 error and implement a suitable solution.