How To Fix CNV20400013 - No fields for conversion found in the specified tables

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV20400 - Message class CNV20400

• Message number: 013

• Message text: No fields for conversion found in the specified tables

What causes this issue?

The table of fields for conversion (CNVFIELDS) does not contain any
values for the specified tables. A merge of objects can be simulated
only if the required information about fields to be converted is
available in table CNVFIELDS.

System Response

No simulation takes place.

How to fix this error?

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 CNV20400013 - No fields for conversion found in the specified tables ?

  The SAP error message CNV20400013 indicates that during a data conversion process, the system could not find any fields for conversion in the specified tables. This error typically arises in the context of data migration or conversion projects, particularly when using SAP's tools for data migration, such as the SAP S/4HANA Migration Cockpit or other data conversion tools.
  Causes:
  
  Incorrect Table Specification: The specified tables may not contain the fields that are expected for conversion. This could be due to a misconfiguration or incorrect table names.
  Missing Data Fields: The fields that are supposed to be converted may not exist in the source system or may have been removed or renamed.
  Configuration Issues: The configuration settings for the data conversion process may not be set up correctly, leading to the system not recognizing the fields.
  Version Mismatch: There may be a mismatch between the source and target system versions, leading to differences in table structures.
  Authorization Issues: The user executing the conversion may not have the necessary authorizations to access the specified tables or fields.
  
  Solutions:
  
  Verify Table and Field Names: Check the specified tables and ensure that they contain the fields intended for conversion. Use transaction codes like SE11 (Data Dictionary) to inspect the table structure.
  Check Configuration Settings: Review the configuration settings for the data migration or conversion process to ensure they are correctly set up.
  Update Migration Objects: If you are using migration objects, ensure that they are up to date and correctly defined to include the necessary fields.
  Consult Documentation: Refer to the SAP documentation for the specific migration tool you are using to ensure that you are following the correct procedures.
  Check Authorizations: Ensure that the user executing the conversion has the necessary authorizations to access the relevant tables and fields.
  Test with Sample Data: If possible, run a test conversion with a smaller dataset to isolate the issue and confirm that the fields are being recognized.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Data Migration Tools: Familiarize yourself with the specific data migration tools and their requirements, as different tools may have different prerequisites for successful data conversion.
  
  If the issue persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.