How To Fix RSANA_UMM_API321 - Duplicate input field name. Please try again with unique names.

SAP Error Message - Details

• Message type: E = Error

• Message class: RSANA_UMM_API - UMM API Messages

• Message number: 321

• Message text: Duplicate input field name. Please try again with unique names.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSANA_UMM_API321 - Duplicate input field name. Please try again with unique names. ?

  The SAP error message RSANA_UMM_API321: Duplicate input field name. Please try again with unique names typically occurs in the context of using the SAP BW (Business Warehouse) or SAP HANA environments, particularly when dealing with data modeling or data extraction processes. This error indicates that there are multiple fields in your input that have the same name, which is not allowed.
  
  Cause:
  
  Duplicate Field Names: The most common cause of this error is that the input structure (like a data source, transformation, or query) contains fields with the same name. This can happen if you are trying to load data from multiple sources that have overlapping field names without proper aliasing.
  Incorrect Mapping: If you are mapping fields in a transformation or data flow, and you accidentally map two different source fields to the same target field name, this error can occur.
  Modeling Issues: In data modeling, if you have created multiple fields with