How To Fix FDT_QUERY029 - Wrong query field name (&1); name already used

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_QUERY - FDT: Query

• Message number: 029

• Message text: Wrong query field name (&1); name already used

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_QUERY029 - Wrong query field name (&1); name already used ?

  The SAP error message FDT_QUERY029 indicates that there is a problem with the field names used in a query definition. Specifically, the error message states that the field name you are trying to use is already in use, which means that you cannot have two fields with the same name in the same query.
  Cause:
  
  Duplicate Field Names: The most common cause of this error is that you have defined multiple fields in your query with the same name. This can happen if you are using fields from different data sources or if you have manually entered field names without checking for duplicates.
  Field Name Conflicts: If you are using a field that is already defined in the query or if there are naming conventions that lead to conflicts, this error can occur.
  
  Solution:
  
  Check Field Definitions: Review the fields defined in your query. Look for any duplicate field names and ensure that each field has a unique name.
  Rename Fields: If you find duplicate field names, rename them to ensure that each field has a unique identifier. This can often be done in the query designer or the relevant configuration area.
  Review Data Sources: If you are pulling fields from multiple data sources, ensure that the same field is not being pulled from different sources with the same name. If necessary, use aliases to differentiate them.
  Test the Query: After making changes, test the query again to ensure that the error has been resolved.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for more details on query design and field naming conventions.
  SAP Community: You can also check the SAP Community forums for similar issues and solutions shared by other users.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SQ01 (Query Area) and SQ02 (InfoSet) to manage queries effectively.
  
  By following these steps, you should be able to resolve the FDT_QUERY029 error and successfully run your query.