How To Fix RSANA_UMM_API323 - Duplicate output 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: 323

• Message text: Duplicate output 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_API323 - Duplicate output field name. Please try again with unique names. ?

  The SAP error message RSANA_UMM_API323: Duplicate output field name. Please try again with unique names typically occurs in the context of SAP BW (Business Warehouse) or SAP HANA when you are trying to create or modify a query, data model, or report that has conflicting field names. This error indicates that there are multiple fields with the same name in the output structure, which is not allowed.
  Cause:
  
  Duplicate Field Names: The most common cause is that the query or data model you are working on has multiple fields that have been assigned the same name. This can happen if you are combining data from different sources or if there are calculated fields that inadvertently have the same name as existing fields.
  Field Aliases: If you are using aliases for fields, ensure that they are unique across the entire output structure.
  Data Source Changes: If the underlying data source has changed (e.g., new fields added or renamed), it may lead to conflicts in field names.
  
  Solution:
  
  Check Field Names: Review the output structure of your query or data model. Look for any fields that have the same name and rename them to ensure uniqueness.
  Use Unique Aliases: If you are using aliases for fields, make sure that each alias is unique. Change any duplicate aliases to something distinct.
  Modify Calculated Fields: If you have created calculated fields, ensure that their names do not conflict with existing fields. Rename them if necessary.
  Rebuild the Query: If the issue persists, consider rebuilding the query or data model from scratch, ensuring that you assign unique names to all fields.
  Check Data Source: If the error is related to a data source, verify that the data source itself does not have duplicate field names.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific patches or updates related to this error. Sometimes, there may be known issues or fixes provided by SAP.
  Documentation: Refer to SAP BW or SAP HANA documentation for best practices on naming conventions and managing field names in queries and data models.
  Community Forums: Engage with SAP community forums or support channels where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to resolve the error and successfully create or modify your query or data model in SAP.