How To Fix RSDS234 - Specify a delta field if you are using a generic delta

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDS - New DataSource

• Message number: 234

• Message text: Specify a delta field if you are using a generic delta

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDS234 - Specify a delta field if you are using a generic delta ?

  The SAP error message RSDS234 indicates that when you are trying to set up a generic delta for a DataSource, you need to specify a delta field. This error typically occurs in the context of SAP BW (Business Warehouse) when working with DataSources that are configured for delta extraction.
  Cause:
  The error arises because:
  
  Generic Delta Extraction: When using generic delta extraction, SAP requires a specific field to track changes in the data. This is necessary for the delta mechanism to function correctly, as it needs to know which records have been added, changed, or deleted since the last extraction.
  Missing Delta Field: If you have not specified a delta field in the DataSource configuration, the system cannot determine how to identify changes in the data.
  
  Solution:
  To resolve the RSDS234 error, follow these steps:
  
  
  Identify a Suitable Delta Field:
  
  Determine which field in your source table can be used to track changes. This could be a timestamp field (e.g., last modified date), a version number, or any other field that indicates a change in the record.
  
  
  
  Modify the DataSource:
  
  Go to the DataSource in the SAP BW system.
  In the DataSource settings, find the section for delta management.
  Specify the identified delta field in the appropriate field for delta tracking.
  
  
  
  Activate the DataSource:
  
  After making changes, ensure that you activate the DataSource again to apply the new settings.
  
  
  
  Test the Delta Extraction:
  
  Perform a delta extraction to verify that the error has been resolved and that the delta mechanism is functioning as expected.
  
  
  
  Related Information:
  
  Delta Mechanism: In SAP BW, delta extraction is a method used to extract only the data that has changed since the last extraction. This is more efficient than full data loads, especially for large datasets.
  DataSource Configuration: The configuration of DataSources can be done in the SAP BW system using transaction codes like RSA1 (Data Warehousing Workbench) or RSA3 (DataSource Test).
  Documentation: Refer to SAP Help documentation for detailed guidance on configuring DataSources and understanding delta mechanisms.
  
  By following these steps, you should be able to resolve the RSDS234 error and successfully implement generic delta extraction in your SAP BW environment.