How To Fix CNV_PE_IF_RT027 - Missing instance of cl_cnv_pe_if_rt_if_gen (interface: &1)

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_PE_IF_RT - PE: Interfaces Runtime generation

• Message number: 027

• Message text: Missing instance of cl_cnv_pe_if_rt_if_gen (interface: &1)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_PE_IF_RT027 - Missing instance of cl_cnv_pe_if_rt_if_gen (interface: &1) ?

  The SAP error message CNV_PE_IF_RT027 indicates that there is a missing instance of the interface cl_cnv_pe_if_rt_if_gen. This error typically arises in the context of SAP data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools.
  Cause:
  
  
  Missing Implementation: The error usually occurs when the system is unable to find an implementation of the specified interface. This could be due to:
  
  The required class or interface not being activated or not existing in the system.
  A missing or incomplete transport that should have included the necessary components.
  Issues with the configuration of the migration project or the data migration object.
  
  
  
  Version Mismatch: If there are version mismatches between the components of the SAP system, it may lead to this error. For example, if the migration tool is expecting a certain version of the interface that is not present in the current system.
  
  
  Custom Development: If there are custom developments or modifications that are supposed to implement this interface but are not correctly set up, it can lead to this error.
  
  
  Solution:
  
  
  Check for Missing Implementations:
  
  Verify that the class cl_cnv_pe_if_rt_if_gen exists in the system. You can do this by using transaction SE80 or SE11 to search for the class.
  If it does not exist, you may need to transport it from a development system or create it if it is a custom implementation.
  
  
  
  Activate the Class:
  
  If the class exists but is not activated, activate it using transaction SE80 or SE11.
  
  
  
  Check Transport Requests:
  
  Ensure that all necessary transport requests have been imported into the system. If you suspect that a transport is missing, check with your Basis team.
  
  
  
  Review Migration Project Configuration:
  
  Go through the configuration of your migration project to ensure that all necessary settings and objects are correctly defined.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that might address this specific error. There may be patches or updates that resolve the issue.
  
  
  
  Debugging:
  
  If you have access to debugging tools, you can set breakpoints in the relevant areas of the code to trace where the error is being triggered.
  
  
  
  Contact SAP Support:
  
  If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: SE80 (Object Navigator), SE11 (Data Dictionary), SE37 (Function Module), SE24 (Class Builder).
  SAP Notes: Always check for relevant SAP Notes that may provide additional context or solutions for this error.
  Documentation: Review the official SAP documentation for the migration tool you are using, as it may provide insights into common issues and their resolutions.
  
  By following these steps, you should be able to identify and resolve the issue related to the CNV_PE_IF_RT027 error message.