How To Fix QG_EVAL033 - You selected data nodes with different structures

SAP Error Message - Details

• Message type: E = Error

• Message class: QG_EVAL - QM Evaluations Using Graphics and Tables

• Message number: 033

• Message text: You selected data nodes with different structures

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message QG_EVAL033 - You selected data nodes with different structures ?

  The SAP error message QG_EVAL033 indicates that you have selected data nodes with different structures in a query or evaluation context. This typically occurs in SAP systems when you are trying to combine or analyze data from different sources or datasets that do not share the same schema or structure.
  Cause:
  
  
  Different Data Structures: The most common cause of this error is that the data nodes you are trying to work with have different fields, data types, or hierarchies. For example, if you are trying to combine data from two different InfoProviders or data sources that have different characteristics or key figures.
  
  
  Inconsistent Metadata: If the metadata definitions for the data nodes are not aligned, it can lead to this error. This can happen if there have been changes in the data model or if the data sources were not properly updated.
  
  
  Incorrect Query Design: The query might be designed in a way that attempts to pull in incompatible data nodes, such as trying to join or union datasets that do not match.
  
  
  Solution:
  
  
  Check Data Structures: Review the structures of the data nodes you are trying to use. Ensure that they have the same characteristics and key figures. You can do this by examining the metadata of each data source.
  
  
  Align Metadata: If there are discrepancies in the metadata, you may need to adjust the data model or the query design to ensure that the data nodes are compatible. This might involve modifying the InfoObjects or the way data is extracted.
  
  
  Modify the Query: If the query is attempting to combine incompatible data nodes, consider redesigning the query to use only compatible nodes. You may need to create separate queries for different data nodes or use a union operation that ensures compatibility.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on the data nodes you are working with. This can provide insights into how to properly structure your queries.
  
  
  Testing: After making adjustments, test the query again to ensure that the error is resolved. It may be helpful to isolate the data nodes and test them individually before combining them.
  
  
  Related Information:
  
  SAP BW/4HANA: If you are using SAP BW/4HANA, ensure that you are familiar with the data modeling concepts and how to manage InfoProviders.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. Sometimes, there may be specific fixes or updates that address this issue.
  Community Forums: Engage with SAP community forums or support channels where other users may have encountered similar issues. They can provide practical solutions or workarounds.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.