How To Fix /UI2/CNV_FRAME112 - Handler class for phase &1 step &2 not defined; skip step

SAP Error Message - Details

• Message type: E = Error

• Message class: /UI2/CNV_FRAME -

• Message number: 112

• Message text: Handler class for phase &1 step &2 not defined; skip step

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /UI2/CNV_FRAME112 - Handler class for phase &1 step &2 not defined; skip step ?

  The SAP error message /UI2/CNV_FRAME112 Handler class for phase &1 step &2 not defined; skip step typically occurs during the execution of a conversion or migration process in SAP, particularly when using the SAP UI2 framework. This error indicates that the system is unable to find a handler class for a specific phase and step in the conversion process.
  Cause:
  
  
  Missing Handler Class: The primary cause of this error is that the system is unable to locate the handler class that is supposed to manage the specified phase and step. This could be due to:
  
  The handler class not being implemented or activated.
  The handler class not being properly registered in the system.
  A typo or misconfiguration in the phase or step definition.
  
  
  
  Custom Development Issues: If there are custom developments or modifications in the system, it is possible that the custom handler class is not correctly defined or is missing.
  
  
  Transport Issues: If the system has recently undergone a transport of changes, the handler class may not have been included in the transport request.
  
  
  Solution:
  
  
  Check Handler Class Definition:
  
  Verify if the handler class for the specified phase and step exists in the system. You can do this by checking the relevant configuration or implementation in the SAP system.
  Use transaction SE80 or SE24 to search for the handler class.
  
  
  
  Implement or Activate the Handler Class:
  
  If the handler class is missing, you may need to implement it or activate it if it is already defined but not active.
  Ensure that the class is properly coded to handle the specific phase and step.
  
  
  
  Review Configuration:
  
  Check the configuration settings related to the conversion or migration process to ensure that the phase and step are correctly defined and mapped to the appropriate handler class.
  
  
  
  Check for Custom Developments:
  
  If there are custom developments, ensure that they are correctly implemented and that the handler class is properly registered.
  
  
  
  Transport Management:
  
  If the issue arose after a transport, ensure that all necessary objects, including the handler class, were included in the transport request and successfully imported into the target system.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to the specific conversion or migration process you are executing. There may be specific instructions or known issues related to the handler classes.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the error message. You can search for the error message number or keywords in the SAP Support Portal.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE80 (Object Navigator), SE24 (Class Builder), and SE37 (Function Module) for debugging and checking the implementation.
  Debugging: If necessary, you can debug the process to trace where the error occurs and gather more information about the missing handler class.
  
  If the issue persists after following these steps, consider reaching out to SAP support or your internal SAP team for further assistance.