How To Fix RSDHA009 - Mapping of field '&1' must not be ambiguous

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDHA - HANA Analysis in BW

• Message number: 009

• Message text: Mapping of field '&1' must not be ambiguous

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDHA009 - Mapping of field '&1' must not be ambiguous ?

  The SAP error message RSDHA009, which states "Mapping of field '&1' must not be ambiguous," typically occurs in the context of data modeling in SAP BW (Business Warehouse) or SAP HANA. This error indicates that there is an ambiguity in the mapping of a field, meaning that the system cannot determine which source field should be used for the target field due to multiple possible mappings.
  Cause:
  
  Multiple Mappings: The field in question (&1) is mapped to more than one source field in the data model, leading to confusion about which source field should be used.
  Inconsistent Data Sources: If the same field name exists in multiple data sources or InfoObjects, the system may not know which one to prioritize.
  Incorrect Data Model Configuration: The configuration of the data model may not be set up correctly, leading to overlapping or conflicting mappings.
  
  Solution:
  
  Review Mappings: Go to the data model (e.g., InfoProvider, DSO, or CompositeProvider) and check the mappings for the field in question. Ensure that each target field is mapped to only one source field.
  Remove Ambiguities: If you find multiple mappings for the same target field, decide which source field should be used and remove the others. This may involve adjusting the data model or the underlying data sources.
  Check Field Names: Ensure that field names are unique across the data sources. If necessary, rename fields in the source systems or adjust the mappings to avoid conflicts.
  Revalidate the Model: After making changes, revalidate the data model to ensure that the error is resolved. This can often be done through the SAP BW modeling tools.
  Consult Documentation: If you are unsure about how to resolve the ambiguity, refer to SAP documentation or seek assistance from a colleague with experience in SAP BW modeling.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on resolving mapping issues.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can provide insights or solutions.
  Data Modeling Best Practices: Familiarize yourself with best practices for data modeling in SAP BW to avoid similar issues in the future, such as maintaining clear and consistent naming conventions and documentation.
  
  By following these steps, you should be able to resolve the RSDHA009 error and ensure that your data model is correctly configured without ambiguities.