How To Fix SODQ307 - Only the extraction of data changes (delta) can be read again

SAP Error Message - Details

• Message type: E = Error

• Message class: SODQ - Operational Delta Queue

• Message number: 307

• Message text: Only the extraction of data changes (delta) can be read again

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SODQ307 - Only the extraction of data changes (delta) can be read again ?

  The SAP error message SODQ307, which states "Only the extraction of data changes (delta) can be read again," typically occurs in the context of data extraction processes, particularly when working with SAP Data Services or SAP BW (Business Warehouse). This error indicates that the system is trying to read data that is not available for re-extraction in the way that is being requested.
  Cause:
  
  
  Delta Extraction Mode: The error usually arises when the system is set to perform a delta extraction, but the data being requested is not available for re-extraction. This can happen if:
  
  The initial load has not been completed successfully.
  The delta queue has been reset or cleared.
  The data has already been extracted and cannot be extracted again in the same manner.
  
  
  
  Data Source Configuration: The data source may not be configured correctly to allow for the requested type of extraction (e.g., full vs. delta).
  
  
  Data Availability: The data that you are trying to extract may not exist in the delta queue, or the delta mechanism may not have been properly set up.
  
  
  Solution:
  
  
  Check Delta Queue: Verify the delta queue for the data source to ensure that there are changes available for extraction. You can do this by checking the relevant transaction codes (like RSA7 for delta queue monitoring).
  
  
  Initial Load: If you have not performed an initial load, you may need to do so before attempting to extract delta data. Ensure that the initial load is completed successfully.
  
  
  Reconfigure Data Source: If the data source is not set up correctly, you may need to reconfigure it. This includes checking the extraction settings in the source system and ensuring that the delta mechanism is properly configured.
  
  
  Check for Data Changes: Ensure that there are actual changes in the source data that can be extracted. If no changes have occurred since the last extraction, the delta queue will be empty.
  
  
  Consult Documentation: Review SAP documentation or notes related to the specific data source and extraction method you are using. There may be specific guidelines or troubleshooting steps provided by SAP.
  
  
  System Logs: Check system logs for any additional error messages or warnings that may provide more context about the issue.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSA7 (for delta queue monitoring), RSO2 (for data source maintenance), and others that may help in troubleshooting.
  SAP Notes: Search for SAP Notes related to SODQ307 or the specific data source you are working with. SAP frequently updates their knowledge base with solutions to common issues.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can provide insights or solutions.
  
  By following these steps, you should be able to diagnose and resolve the SODQ307 error effectively.