How To Fix RSDHA407 - Input column '&1' missing

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDHA - HANA Analysis in BW

• Message number: 407

• Message text: Input column '&1' missing

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDHA407 - Input column '&1' missing ?

  The SAP error message RSDHA407, which states "Input column '&1' missing," typically occurs in the context of SAP BW (Business Warehouse) when there is an issue with the data source or the transformation process. This error indicates that a required input column, which is expected in the data flow, is not present in the source data or the transformation logic.
  Causes:
  
  Missing Column in Data Source: The input column specified in the error message is not present in the underlying data source (e.g., InfoSource, DataSource, or flat file).
  Incorrect Mapping: The mapping in the transformation might be incorrect, leading to the system looking for a column that does not exist.
  Changes in Source Structure: If the structure of the source data has changed (e.g., a column was removed or renamed), the transformation will fail to find the expected column.
  Data Source Activation: The data source may not be activated properly, leading to inconsistencies in the data model.
  Data Extraction Issues: There may be issues during the data extraction process that prevent the column from being populated.
  
  Solutions:
  
  Check Data Source: Verify that the input column exists in the data source. If it has been removed or renamed, you may need to update the transformation accordingly.
  Update Transformation Logic: If the column has been renamed or its structure has changed, update the transformation to reflect these changes.
  Re-activate Data Source: If the data source has been modified, ensure that it is re-activated in the SAP BW system.
  Check for Data Extraction Errors: Review the data extraction process to ensure that there are no errors that could prevent the column from being populated.
  Test Data Flow: Run a test of the data flow to see if the issue persists. This can help identify if the problem is with the transformation or the data source.
  Consult Documentation: Review any relevant documentation or change logs to understand if there have been recent changes to the data model that could affect the transformation.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like RSA1 (Data Warehousing Workbench) to check the data source and transformation settings.
  Logs and Traces: Check the logs for more detailed error messages that can provide additional context about the issue.
  SAP Notes: Look for relevant SAP Notes that may address known issues related to this error message.
  Community Forums: Consider checking SAP Community forums or other user groups for similar issues and solutions shared by other users.
  
  By following these steps, you should be able to identify the cause of the RSDHA407 error and implement a solution to resolve it.