How To Fix RSDS186 - Delta field &1 is not a selection field

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDS - New DataSource

• Message number: 186

• Message text: Delta field &1 is not a selection field

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDS186 - Delta field &1 is not a selection field ?

  The SAP error message RSDS186 indicates that a delta field specified in a delta process is not recognized as a selection field. This typically occurs in the context of data extraction from SAP systems, particularly when working with DataSources in SAP BW (Business Warehouse) or SAP HANA.
  
  Cause:
  The error can arise due to several reasons:
  
  Field Configuration: The field you are trying to use as a delta field is not configured as a selection field in the DataSource. Delta fields must be defined in a way that allows them to be used for delta extraction.
  DataSource Definition: The DataSource may not have been properly defined or activated. If the DataSource is not set up correctly, it may not recognize certain fields as valid for delta processing.
  Field Type: The field type of the delta field may not be compatible with the requirements for delta extraction.
  Missing or Incorrect Delta Logic: The delta logic may not