How To Fix APB_FPM_CORE800 - Invalid class name &1

SAP Error Message - Details

• Message type: E = Error

• Message class: APB_FPM_CORE - FPM messages

• Message number: 800

• Message text: Invalid class name &1

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 APB_FPM_CORE800 - Invalid class name &1 ?

  The SAP error message APB_FPM_CORE800: Invalid class name &1 typically occurs in the context of SAP Fiori or SAP Web Dynpro applications when there is an issue with the configuration or instantiation of a class in the application. This error indicates that the system is unable to find or recognize the specified class name, which can be due to several reasons.
  Causes:
  
  Typographical Error: There may be a typo in the class name specified in the configuration.
  Class Not Activated: The class may not be activated in the system, or it may not exist in the specified namespace.
  Missing Dependencies: The class may depend on other classes or components that are not available or activated.
  Incorrect Configuration: The configuration settings in the application may be incorrect, leading to the system being unable to locate the class.
  Transport Issues: If the class was recently transported from another system, there may have been issues during the transport process.
  
  Solutions:
  
  Check Class Name: Verify that the class name specified in the configuration is correct and does not contain any typographical errors.
  Activate Class: Ensure that the class is activated in the system. You can do this by navigating to the class in the ABAP Workbench (SE80) and checking its status.
  Check Dependencies: Review the dependencies of the class to ensure that all required components are available and activated.
  Review Configuration: Go through the configuration settings in the application to ensure that they are set up correctly and pointing to the right class.
  Transport Check: If the class was recently transported, check the transport logs for any errors and ensure that the transport was successful.
  Debugging: If the issue persists, consider debugging the application to trace where the error is occurring and gather more context about the failure.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like SE80 (Object Navigator) to check the class and SE11 (Data Dictionary) to check related database objects.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  Community Forums: Consider checking SAP Community forums or other online resources where similar issues may have been discussed.
  
  If the problem continues after trying the above solutions, it may be beneficial to consult with your SAP Basis or development team for further assistance.