How To Fix CNV_DMC_MD_EXTRACTOR029 - Function module not supported; parameter contains boxed component

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_MD_EXTRACTOR - meta data extractor message class

• Message number: 029

• Message text: Function module not supported; parameter contains boxed component

What causes this issue?

You tried to create a receiver container using a function module that
has a parameter that contains a boxed component.

System Response

The use of function modules which have one or more parameters that
contain a boxed component is currently not supported.

How to fix this error?

Use another function module<(>,<)> or try to wrap the function module in
a function module whose parameters do not contain any boxed components.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_DMC_MD_EXTRACTOR029 - Function module not supported; parameter contains boxed component ?

  The SAP error message CNV_DMC_MD_EXTRACTOR029 indicates that a function module is not supported because it contains a boxed component as a parameter. This error typically arises in the context of data migration or data extraction processes, particularly when using the SAP Data Migration Cockpit or similar tools.
  Cause:
  The error is caused by the use of a function module that has parameters defined as boxed components. Boxed components are complex data types that can include multiple fields or structures. In certain contexts, especially in data extraction or migration scenarios, these boxed components may not be supported due to limitations in how the data is processed or transferred.
  Solution:
  To resolve this error, consider the following steps:
  
  
  Review the Function Module: Check the function module that is causing the error. Look for parameters that are defined as boxed components. You may need to modify the function module to avoid using boxed components.
  
  
  Change Parameter Types: If possible, change the parameter types from boxed components to simpler data types or structures that are supported by the data extraction or migration tool you are using.
  
  
  Use Alternative Function Modules: If the function module cannot be modified, look for alternative function modules that provide similar functionality but do not use boxed components.
  
  
  Consult Documentation: Refer to the SAP documentation for the specific data migration or extraction tool you are using. There may be guidelines or best practices for handling function modules and their parameters.
  
  
  SAP Notes and Support: Check for any relevant SAP Notes that may address this specific error. SAP Notes often provide fixes, workarounds, or additional information about known issues.
  
  
  Testing: After making changes, thoroughly test the function module to ensure that it works as expected without the boxed components.
  
  
  Related Information:
  
  SAP Data Migration Cockpit: This tool is commonly used for data migration projects and may have specific requirements regarding the types of function modules that can be used.
  Function Module Documentation: Review the documentation for the specific function module to understand its parameters and any limitations.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  
  If the problem persists after trying these solutions, consider reaching out to SAP support for further assistance.