How To Fix PMEVC_UI434 - Prefix &1 does not match class ID &2 (class type &3)

SAP Error Message - Details

• Message type: E = Error

• Message class: PMEVC_UI -

• Message number: 434

• Message text: Prefix &1 does not match class ID &2 (class type &3)

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 PMEVC_UI434 - Prefix &1 does not match class ID &2 (class type &3) ?

  The SAP error message PMEVC_UI434 indicates a mismatch between a prefix and a class ID in the context of a specific class type. This error typically arises in scenarios involving the use of class-based programming or when dealing with object-oriented features in SAP, such as Business Object Processing or ABAP classes.
  Cause:
  The error occurs when the prefix of a class or object does not correspond to the expected class ID for the specified class type. This can happen due to several reasons:
  
  Incorrect Configuration: The prefix defined in the system does not match the class ID that is being referenced.
  Custom Development Issues: If custom classes or objects are being used, they may not be properly defined or registered.
  Transport Issues: If the class or object was transported from another system, there may be inconsistencies in the naming conventions or configurations.
  Version Mismatch: If there are different versions of the class in different environments, it may lead to this error.
  
  Solution:
  To resolve the PMEVC_UI434 error, you can follow these steps:
  
  
  Check Class Definitions:
  
  Verify the class ID and prefix in the system. Ensure that they match the expected values for the class type you are working with.
  Use transaction SE24 (Class Builder) to check the class definitions and their prefixes.
  
  
  
  Review Configuration:
  
  Check the configuration settings related to the class or object in question. Ensure that the prefix is correctly set up in the relevant configuration tables.
  
  
  
  Debugging:
  
  If you have access to debugging tools, you can set breakpoints in the code where the error occurs to trace the values of the class ID and prefix being used.
  
  
  
  Transport Management:
  
  If the issue arose after a transport, check the transport logs for any errors or warnings. Ensure that all necessary objects were transported correctly.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to the specific class or object you are working with. There may be known issues or additional configuration steps required.
  
  
  
  Contact SAP Support:
  
  If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance. Provide them with the error message details and any relevant context.
  
  
  
  Related Information:
  
  Transaction Codes: SE24 (Class Builder), SE80 (Object Navigator), SE37 (Function Module), SE11 (Data Dictionary).
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review the SAP Help Portal for information on class-based programming and object-oriented features in SAP.
  
  By following these steps, you should be able to identify and resolve the PMEVC_UI434 error in your SAP environment.