How To Fix CNV_DMC_MD_EXTRACTOR025 - Parameter &1 has the generic type &2 but there is no mapping maintained

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_MD_EXTRACTOR - meta data extractor message class

• Message number: 025

• Message text: Parameter &1 has the generic type &2 but there is no mapping maintained

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 CNV_DMC_MD_EXTRACTOR025 - Parameter &1 has the generic type &2 but there is no mapping maintained ?

  The SAP error message CNV_DMC_MD_EXTRACTOR025 indicates that there is an issue with the data extraction process in the Data Migration Cockpit (DMC) related to the mapping of parameters. Specifically, the error states that a parameter has a generic type, but there is no mapping maintained for it.
  Cause:
  
  Missing Mapping: The primary cause of this error is that the system expects a mapping for a specific parameter type, but it has not been defined in the configuration.
  Incorrect Configuration: There may be an issue with the configuration of the data migration project, where the mappings for certain data types have not been set up correctly.
  Data Model Changes: If there have been changes to the data model or the structure of the source or target systems, it may lead to discrepancies in the expected mappings.
  
  Solution:
  
  
  Check Mapping Configuration:
  
  Go to the Data Migration Cockpit and check the mapping settings for the specific data migration project.
  Ensure that all required mappings for the parameters are defined correctly.
  
  
  
  Define Missing Mappings:
  
  If you identify that a mapping is indeed missing, you will need to create it. This can typically be done in the DMC configuration settings.
  Make sure to map the generic type parameter to the appropriate target field.
  
  
  
  Review Data Model:
  
  If there have been recent changes to the data model, review those changes to ensure that they are reflected in the DMC configuration.
  Update the mappings as necessary to align with the current data model.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation for the Data Migration Cockpit for guidance on how to set up mappings and troubleshoot common issues.
  
  
  
  Testing:
  
  After making changes, perform a test extraction to ensure that the error has been resolved and that data is being extracted correctly.
  
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like LTMC (Legacy Transfer Migration Cockpit) or LTMOM (Migration Object Modeler) to access the relevant settings.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on mapping issues.
  Support: If the issue persists after checking the mappings and configurations, consider reaching out to SAP support for further assistance.
  
  By following these steps, you should be able to resolve the CNV_DMC_MD_EXTRACTOR025 error and ensure that your data migration process runs smoothly.