How To Fix UPWB147 - ABAP-OO class &1 does not exist. Default class is used

SAP Error Message - Details

• Message type: E = Error

• Message class: UPWB - Messages for Development Class UPWB

• Message number: 147

• Message text: ABAP-OO class &1 does not exist. Default class is used

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message UPWB147 - ABAP-OO class &1 does not exist. Default class is used ?

  The SAP error message UPWB147 indicates that the system is unable to find a specified ABAP Object-Oriented (OO) class, and as a result, it defaults to using a standard or fallback class. This error typically occurs in the context of SAP Business Warehouse (BW) or SAP BusinessObjects when a specific class is expected but not available.
  Cause:
  
  Class Not Defined: The specified class does not exist in the system. This could be due to a typo in the class name or the class not being created or activated.
  Transport Issues: If the class was recently transported from another system, it may not have been transported correctly or may not exist in the target system.
  Authorization Issues: The user may not have the necessary authorizations to access the specified class.
  Namespace Issues: The class might be in a different namespace that is not accessible in the current context.
  
  Solution:
  
  
  Check Class Existence:
  
  Use transaction code SE24 (Class Builder) to check if the class exists. Enter the class name and see if it is available.
  If it does not exist, you may need to create it or correct the reference to the class.
  
  
  
  Correct Class Name:
  
  Verify that the class name is spelled correctly in the code or configuration where it is being referenced.
  
  
  
  Transport Check:
  
  If the class was supposed to be transported, check the transport logs to ensure it was successfully imported into the target system.
  
  
  
  Authorization Check:
  
  Ensure that the user has the necessary authorizations to access the class. You may need to consult with your SAP security team.
  
  
  
  Namespace Verification:
  
  If the class is in a different namespace, ensure that the namespace is correctly configured and accessible.
  
  
  
  Fallback Class:
  
  If a fallback class is being used, review its functionality to ensure it meets the requirements of your application.
  
  
  
  Related Information:
  
  Debugging: If you are a developer, you can use the ABAP debugger to trace where the error is occurring and gather more context about the class being referenced.
  SAP Notes: Check SAP Notes for any known issues related to this error message. Sometimes, there may be patches or updates that address specific problems.
  Documentation: Review the documentation for the specific SAP module or application you are working with to understand the expected classes and their configurations.
  
  By following these steps, you should be able to identify the cause of the UPWB147 error and implement a solution to resolve it.