How To Fix DHCDC_CORE026 - CDS view &1 does not support delta extraction

SAP Error Message - Details

• Message type: E = Error

• Message class: DHCDC_CORE -

• Message number: 026

• Message text: CDS view &1 does not support delta extraction

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DHCDC_CORE026 - CDS view &1 does not support delta extraction ?

  The SAP error message DHCDC_CORE026 indicates that a Core Data Services (CDS) view does not support delta extraction. This typically occurs in the context of SAP Data Warehousing or SAP BW (Business Warehouse) when trying to extract data from a CDS view that is not designed to handle delta extraction.
  Cause:
  
  CDS View Design: The CDS view may not have been designed with delta extraction capabilities. Delta extraction requires specific characteristics, such as a unique key and a mechanism to track changes (e.g., timestamps or change indicators).
  Lack of Change Data Capture (CDC): The underlying data model may not support change data capture, which is necessary for delta extraction.
  Incompatible Data Source: The data source may not be compatible with the delta extraction process, which can happen if the data is not stored in a way that allows for incremental updates.
  
  Solution:
  
  Modify the CDS View: If you have access to the CDS view definition, you may need to modify it to include fields that support delta extraction, such as:
  
  A timestamp field that indicates when the record was last updated.
  A change indicator field that marks whether a record has been added, modified, or deleted.
  
  
  Use Full Extraction: If modifying the CDS view is not feasible, consider using full extraction instead of delta extraction. This means that you will extract all data every time, which can be less efficient but may be necessary if delta extraction is not supported.
  Check for Updates: Ensure that you are using the latest version of the CDS view and that any relevant SAP notes or updates have been applied that may enhance its functionality.
  Consult Documentation: Review the SAP documentation for the specific CDS view to understand its capabilities and limitations regarding delta extraction.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or updates related to the specific CDS view you are working with.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and what solutions they have found.
  SAP BW/4HANA: If you are using SAP BW/4HANA, ensure that your data models and extraction processes are aligned with the best practices for delta extraction.
  
  By addressing the design of the CDS view and ensuring it supports the necessary features for delta extraction, you can resolve the DHCDC_CORE026 error.