How To Fix RSDS184 - Delta field &1 does not exist in the field list of segment &2

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDS - New DataSource

• Message number: 184

• Message text: Delta field &1 does not exist in the field list of segment &2

What causes this issue?

Selections can only be made using the fields of the primary segment.

System Response

The DataSource is not activated.

How to fix this error?

Choose a field from the primary segment to be the delta field.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSDS184 - Delta field &1 does not exist in the field list of segment &2 ?

  The SAP error message RSDS184 indicates that there is an issue with a delta field in a DataSource. Specifically, it states that the delta field specified (denoted as &1) does not exist in the field list of the specified segment (denoted as &2). This error typically occurs in the context of data extraction processes, particularly when working with SAP BW (Business Warehouse) or SAP Data Services.
  Cause:
  
  Field Mismatch: The delta field you are trying to use is not defined in the DataSource or the segment you are working with. This could happen if the DataSource was modified after the delta field was defined.
  Incorrect Configuration: The DataSource might not be properly configured to include the delta field, or the field might have been removed or renamed in the source system.
  DataSource Activation: If the DataSource has not been activated after changes were made, the system may not recognize the new or modified fields.
  Versioning Issues: If there are multiple versions of the DataSource, you might be referencing an outdated version that does not include the delta field.
  
  Solution:
  
  
  Check DataSource Definition: Go to the DataSource in the SAP system and verify that the delta field is indeed defined in the field list of the specified segment. You can do this by navigating to the DataSource in the Data Warehousing Workbench (transaction code RSA1).
  
  
  Activate DataSource: If you have made changes to the DataSource, ensure that you activate it. This can be done in the Data Warehousing Workbench by selecting the DataSource and choosing the "Activate" option.
  
  
  Update Delta Fields: If the delta field has been removed or renamed, you may need to update your extraction logic to reflect these changes. This may involve modifying the transformation or the InfoPackage that uses the DataSource.
  
  
  Check for Version Conflicts: Ensure that you are using the correct version of the DataSource. If there are multiple versions, make sure you are referencing the latest one.
  
  
  Consult Documentation: Review any relevant documentation or notes related to the DataSource to understand any changes that may have been made.
  
  
  Testing: After making the necessary changes, perform a test extraction to ensure that the error is resolved.
  
  
  Related Information:
  
  Transaction Codes: Use transaction codes like RSA1 (Data Warehousing Workbench), RSO2 (Maintain DataSource), and RSPC (Process Chain) for managing DataSources and process chains.
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific DataSource or error message.
  DataSource Documentation: Review the documentation for the specific DataSource to understand its structure and fields.
  
  By following these steps, you should be able to resolve the RSDS184 error and ensure that your data extraction processes function correctly.