How To Fix PPELUI031 - The selected combination of class and class type is invalid

SAP Error Message - Details

• Message type: E = Error

• Message class: PPELUI - Messages of iPPE Workbench Express

• Message number: 031

• Message text: The selected combination of class and class type is invalid

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message PPELUI031 - The selected combination of class and class type is invalid ?

  The SAP error message PPELUI031, which states "The selected combination of class and class type is invalid," typically occurs in the context of SAP Plant Maintenance (PM) or SAP Project System (PS) when working with classification and object characteristics. This error indicates that the system cannot find a valid combination of the class and class type you are trying to use.
  Causes:
  
  Incorrect Class Type: The class type you are trying to use may not be compatible with the class you have selected. Each class type is designed for specific purposes and may not support all classes.
  Missing Class Assignment: The class you are trying to use may not be assigned to the class type in the system configuration.
  Configuration Issues: There may be issues in the configuration of the classification system, such as missing or incorrect settings in the Customizing settings for classes and class types.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to access certain classes or class types.
  
  Solutions:
  
  Check Class and Class Type: Verify that the class you are trying to use is indeed assigned to the class type you are selecting. You can do this by navigating to the classification settings in the SAP system.
  Review Customizing Settings: Go to the Customizing settings (transaction SPRO) and check the configuration for classes and class types. Ensure that the class is correctly assigned to the appropriate class type.
  Create or Modify Class: If the class is not assigned to the class type, you may need to create a new class or modify the existing one to ensure it is linked correctly.
  User Authorizations: Check if the user has the necessary authorizations to access the class and class type. If not, you may need to work with your SAP security team to grant the appropriate permissions.
  Consult Documentation: Refer to SAP documentation or help resources for more detailed information on class types and their valid combinations.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like CL02 (Change Class) or CL03 (Display Class) to view and manage classes.
  SAP Notes: Check for any relevant SAP Notes that might address specific issues related to this error message.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.