How To Fix RD405 - A query with two structures cannot be transferred

SAP Error Message - Details

• Message type: E = Error

• Message class: RD - CO-PA Connection to SAP BW

• Message number: 405

• Message text: A query with two structures cannot be transferred

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RD405 - A query with two structures cannot be transferred ?

  The SAP error message RD405, which states "A query with two structures cannot be transferred," typically occurs in the context of SAP BW (Business Warehouse) when you are trying to transfer a query that has been defined with two different structures. This can happen when you are working with queries in the BEx (Business Explorer) Query Designer or when trying to execute or transport queries that involve multiple data structures.
  Cause:
  The primary cause of this error is that the query you are trying to execute or transfer is based on two different structures (e.g., two different InfoProviders or two different data sources) that are not compatible for the operation you are attempting. In SAP BW, queries can be built on top of InfoCubes, DataStore Objects (DSOs), or MultiProviders, but certain operations may not support combining multiple structures.
  Solution:
  To resolve the RD405 error, you can consider the following approaches:
  
  
  Review the Query Design:
  
  Open the query in the BEx Query Designer and check the structure of the query. Ensure that it is not inadvertently combining two different structures that are incompatible.
  If the query is intended to use multiple structures, consider redesigning it to use a single structure or a compatible combination.
  
  
  
  Use a MultiProvider:
  
  If you need to combine data from different InfoProviders, consider creating a MultiProvider that aggregates the data from the different sources. This allows you to create a single query based on the MultiProvider.
  
  
  
  Check Query Properties:
  
  Ensure that the properties of the query are set correctly. Sometimes, certain settings can lead to conflicts when transferring or executing the query.
  
  
  
  Test the Query:
  
  After making changes, test the query in the BEx Analyzer or Query Designer to ensure that it runs without errors.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific guidelines on query design and limitations regarding structures.
  
  
  
  Seek Support:
  
  If the issue persists, consider reaching out to your SAP support team or consulting SAP Notes for any known issues or patches related to this error.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
  BEx Query Designer: Familiarize yourself with the capabilities and limitations of the BEx Query Designer, especially regarding the use of structures and InfoProviders.
  SAP BW Documentation: Review the official SAP BW documentation for best practices in query design and troubleshooting common errors.
  
  By following these steps, you should be able to identify the cause of the RD405 error and implement a solution to resolve it.