How To Fix RSOS_SEARCH027 - Field name &1 is not unique (table &2)

SAP Error Message - Details

• Message type: E = Error

• Message class: RSOS_SEARCH -

• Message number: 027

• Message text: Field name &1 is not unique (table &2)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSOS_SEARCH027 - Field name &1 is not unique (table &2) ?

  The SAP error message RSOS_SEARCH027 indicates that there is a problem with the uniqueness of a field name in a specific table. This error typically arises in the context of SAP BW (Business Warehouse) or SAP HANA when dealing with data modeling, queries, or reporting.
  Cause:
  The error occurs when the system encounters a situation where a field name is not unique within the specified table. This can happen due to several reasons:
  
  Duplicate Field Names: The same field name is defined multiple times in the same table or in the context of a query.
  Incorrect Data Model: The data model may have been incorrectly designed, leading to conflicts in field names.
  Changes in Data Source: If the underlying data source has been modified (e.g., fields added or renamed), it may lead to conflicts in the existing queries or reports.
  
  Solution:
  To resolve the RSOS_SEARCH027 error, you can take the following steps:
  
  
  Check Field Definitions:
  
  Review the field definitions in the specified table (&2) to identify any duplicate field names (&1).
  Ensure that each field name is unique within the context of the table.
  
  
  
  Modify Data Model:
  
  If you find duplicate field names, consider renaming them or restructuring the data model to ensure uniqueness.
  If you are using InfoObjects in BW, check the InfoObject definitions for any conflicts.
  
  
  
  Update Queries/Reports:
  
  If the error occurs in a query or report, update the query definition to reference the correct field names.
  Ensure that any calculated fields or key figures do not inadvertently create duplicates.
  
  
  
  Re-activate Objects:
  
  After making changes, re-activate the affected objects (e.g., InfoProviders, queries) to ensure that the changes take effect.
  
  
  
  Check for Transport Issues:
  
  If the issue arose after a transport, verify that the transport did not introduce any inconsistencies in the data model.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or community forums for additional insights or similar issues encountered by other users.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to RSOS_SEARCH027 for any specific patches or updates that may address this issue.
  Transaction Codes: Use transaction codes like SE11 (Data Dictionary) or RSA1 (Data Warehousing Workbench) to investigate the data model and field definitions.
  Debugging: If necessary, you can debug the query or report to trace where the error is being triggered.
  
  By following these steps, you should be able to identify and resolve the issue causing the RSOS_SEARCH027 error in your SAP environment.