How To Fix PPEENG154 - Class &1/&2 is still used in iPPE

SAP Error Message - Details

• Message type: E = Error

• Message class: PPEENG - iPPE Engine Messages

• Message number: 154

• Message text: Class &1/&2 is still used in iPPE

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message PPEENG154 - Class &1/&2 is still used in iPPE ?

  The SAP error message PPEENG154 indicates that a class (specifically a class type and class name) is still being used in the Integrated Product and Process Engineering (iPPE) environment. This typically occurs when you attempt to delete or modify a class that is still referenced in various iPPE objects, such as characteristics, classes, or other related structures.
  Cause:
  The error is caused by the following scenarios:
  
  Active References: The class you are trying to delete or modify is still actively referenced in iPPE objects.
  Dependencies: There are dependencies in the iPPE model that rely on the class, making it impossible to remove or change without first addressing these dependencies.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Identify References:
  
  Use transaction codes like CL02 (Display Class) or CL03 (Display Class with Hierarchy) to check where the class is being used.
  You can also use the iPPE-specific transactions to find out which iPPE objects are linked to the class.
  
  
  
  Remove or Update References:
  
  If you find that the class is being used in characteristics, models, or other iPPE objects, you will need to either remove those references or update them to point to a different class.
  This may involve editing the iPPE models or characteristics that are currently using the class.
  
  
  
  Check for Dependencies:
  
  Ensure that there are no other dependencies that might be preventing the deletion or modification of the class.
  You may need to consult with your iPPE modelers or system administrators to ensure that all dependencies are accounted for.
  
  
  
  Delete or Modify the Class:
  
  Once all references and dependencies have been addressed, you should be able to delete or modify the class without encountering the error.
  
  
  
  Testing:
  
  After making changes, it’s a good practice to test the iPPE models to ensure that everything is functioning as expected and that no other issues have arisen from the changes.
  
  
  
  Related Information:
  
  Documentation: Refer to SAP Help documentation for iPPE and class management for more detailed instructions and best practices.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CL01 (Create Class), CL02 (Change Class), and CL03 (Display Class) for managing classes in SAP.
  Support: If you are unable to resolve the issue, consider reaching out to SAP support or your internal SAP support team for assistance.
  
  By following these steps, you should be able to resolve the PPEENG154 error and manage your classes effectively within the iPPE environment.