How To Fix 42155 - Info object class &1 is not a folder class

SAP Error Message - Details

• Message type: E = Error

• Message class: 42 - Information Workbench

• Message number: 155

• Message text: Info object class &1 is not a folder class

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message 42155 - Info object class &1 is not a folder class ?

  The SAP error message "42155 Info object class &1 is not a folder class" typically occurs in the context of SAP BW (Business Warehouse) or SAP BI (Business Intelligence) when dealing with InfoObjects and their classifications. This error indicates that the system is expecting a folder class for the specified InfoObject, but the provided class does not meet that requirement.
  Cause:
  
  Incorrect InfoObject Class: The InfoObject you are trying to use is not classified as a folder class. In SAP BW, InfoObjects can be classified into different types, such as characteristics, key figures, and folders. If you attempt to treat a non-folder InfoObject as a folder, this error will occur.
  Configuration Issues: There may be a misconfiguration in the InfoObject settings or in the way the InfoObjects are being referenced in your queries or reports.
  Data Model Issues: If the data model has been altered or if there are inconsistencies in the metadata, it could lead to this error.
  
  Solution:
  
  Check InfoObject Class: Verify the class of the InfoObject in question. You can do this by navigating to the InfoObject maintenance transaction (e.g., RSA1) and checking the properties of the InfoObject. Ensure that it is indeed a folder class if that is what is required.
  Correct Usage: If you are trying to use a non-folder InfoObject as a folder, you will need to adjust your logic to use the correct InfoObject type.
  Reconfigure InfoObjects: If necessary, you may need to reconfigure the InfoObject or create a new folder InfoObject that meets the requirements of your data model.
  Check Queries and Reports: Review any queries or reports that reference the InfoObject to ensure they are correctly set up and not mistakenly treating a non-folder InfoObject as a folder.
  Transport Issues: If this error occurs after a transport, ensure that all necessary objects and configurations were transported correctly.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions to common problems.
  Documentation: Refer to the SAP BW documentation for detailed information on InfoObjects and their classifications.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  If the problem persists after trying the above solutions, consider reaching out to your SAP support team or consulting with an SAP BW expert for further assistance.