How To Fix DRF_COMMON002 - Error during instantiation of Key Mapping Class

SAP Error Message - Details

• Message type: E = Error

• Message class: DRF_COMMON - Messages for DRF_Common

• Message number: 002

• Message text: Error during instantiation of Key Mapping Class

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message DRF_COMMON002 - Error during instantiation of Key Mapping Class ?

  The SAP error message DRF_COMMON002 indicates that there was an error during the instantiation of a key mapping class in the Data Replication Framework (DRF). This error typically arises when there are issues related to the configuration or implementation of the key mapping class used in the data replication process.
  Causes:
  
  Missing or Incorrect Configuration: The key mapping class may not be properly configured in the system. This could include missing entries in the relevant customizing tables or incorrect settings.
  Implementation Issues: If a custom key mapping class has been implemented, there may be errors in the code or the class may not be properly defined.
  Authorization Issues: The user executing the replication may not have the necessary authorizations to access the key mapping class.
  Transport Issues: If the key mapping class was recently transported from another system, there may be inconsistencies or missing dependencies.
  Data Issues: The data being processed may not conform to the expected format or structure, leading to instantiation failures.
  
  Solutions:
  
  Check Configuration: Review the configuration settings for the key mapping class in the DRF customizing settings. Ensure that all necessary entries are present and correctly configured.
  Review Custom Code: If a custom key mapping class is being used, check the implementation for any coding errors or exceptions that may be causing the instantiation to fail.
  Authorization Check: Ensure that the user has the necessary authorizations to access and execute the key mapping class.
  Transport Validation: If the key mapping class was transported, verify that all dependencies and related objects were also transported correctly.
  Debugging: Use the ABAP debugger to trace the execution and identify the exact point of failure during the instantiation process. This can provide insights into what might be going wrong.
  Check Logs: Review the application logs (transaction SLG1) for any additional error messages or warnings that may provide more context about the issue.
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like SLG1 (Application Log) to check for logs related to the error, and DRFOUT to monitor the data replication framework.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review the official SAP documentation for the Data Replication Framework to ensure that all necessary steps and configurations have been followed.
  
  If the issue persists after following these steps, it may be beneficial to reach out to SAP support for further assistance, providing them with detailed information about the error and the steps you have already taken to resolve it.