How To Fix CNV_DMC_MD_EXTRACTOR026 - Function module not supported because of reference parameters

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_MD_EXTRACTOR - meta data extractor message class

• Message number: 026

• Message text: Function module not supported because of reference parameters

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_EXTRACTOR026 - Function module not supported because of reference parameters ?

  The SAP error message CNV_DMC_MD_EXTRACTOR026 typically indicates that a function module is not supported due to the presence of reference parameters. This error is often encountered in the context of data migration or data extraction processes, particularly when using the SAP Data Migration Cockpit (DMC) or similar tools.
  Cause:
  The error arises because the function module being called has reference parameters, which are not supported in the context of the operation being performed. Reference parameters are parameters that allow a function module to modify the actual variable passed to it, which can lead to complications in data extraction or transformation processes.
  Solution:
  To resolve this error, you can consider the following approaches:
  
  
  Modify the Function Module:
  
  If you have access to the function module's code, you can modify it to remove reference parameters. Instead, use value parameters or return values to achieve the desired functionality without using references.
  
  
  
  Use an Alternative Function Module:
  
  Look for an alternative function module that provides similar functionality but does not use reference parameters. This may involve some research or consultation with your development team.
  
  
  
  Check for Updates:
  
  Ensure that your SAP system is up to date. Sometimes, SAP releases patches or updates that may resolve such issues. Check the SAP Notes for any relevant updates or fixes.
  
  
  
  Consult SAP Documentation:
  
  Review the SAP documentation related to the Data Migration Cockpit or the specific function module to understand any limitations or requirements.
  
  
  
  Contact SAP Support:
  
  If the issue persists and you cannot find a suitable workaround, consider reaching out to SAP Support for assistance. They may provide insights or solutions specific to your version and configuration.
  
  
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes that may address this specific error or provide guidance on handling function modules with reference parameters.
  Data Migration Cockpit Documentation: Review the official SAP documentation for the Data Migration Cockpit, which may provide additional context on supported function modules and best practices for data extraction.
  ABAP Development Guidelines: Familiarize yourself with ABAP development guidelines regarding the use of parameters in function modules, especially in the context of data migration.
  
  By following these steps, you should be able to address the CNV_DMC_MD_EXTRACTOR026 error effectively.