How To Fix RSDHA306 - Referenced input column '&1' is missing

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDHA - HANA Analysis in BW

• Message number: 306

• Message text: Referenced input column '&1' is missing

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDHA306 - Referenced input column '&1' is missing ?

  The SAP error message RSDHA306, which states "Referenced input column '&1' is missing," typically occurs in the context of SAP BW (Business Warehouse) when working with DataSources, InfoObjects, or transformations. This error indicates that a specific input column that is expected in a transformation or data flow is not available or cannot be found.
  Cause:
  
  Missing Column in DataSource: The referenced column may not exist in the DataSource that is being used. This can happen if the DataSource was modified or if the column was removed.
  Incorrect Mapping: The transformation might be incorrectly configured, leading to a reference to a column that does not exist in the source structure.
  Changes in Data Model: If there have been recent changes to the data model, such as renaming or deleting InfoObjects or fields, this can lead to missing references.
  Inconsistent Metadata: There may be inconsistencies in the metadata between the DataSource and the transformation or InfoProvider.
  
  Solution:
  
  Check DataSource: Verify that the DataSource being used contains the referenced column. You can do this by checking the DataSource structure in the SAP BW system.
  Update Transformation: If the column has been renamed or removed, update the transformation to reflect the current structure of the DataSource. This may involve mapping the correct columns or removing references to non-existent columns.
  Re-activate Objects: Sometimes, reactivating the DataSource, transformation, or InfoProvider can resolve inconsistencies. This can be done in the SAP BW modeling tools.
  Check for Changes: Review any recent changes made to the DataSource or InfoObjects that might have affected the column structure. If changes were made, ensure that all dependent objects are updated accordingly.
  Test Data Flow: After making the necessary adjustments, test the data flow to ensure that the error is resolved and that data is being processed correctly.
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like RSA1 (Data Warehousing Workbench) to access the modeling tools and check the DataSource and transformations.
  Documentation: Refer to SAP documentation for detailed information on DataSources, transformations, and InfoProviders to understand how to manage and troubleshoot these components.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message, as there may be specific fixes or recommendations provided by SAP.
  
  By following these steps, you should be able to identify the cause of the RSDHA306 error and implement the necessary solutions to resolve it.