How To Fix CNV_PE_CHECK_V2046 - Extension table &1: Extension structure is inconsistent

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_PE_CHECK_V2 - Check Messages (Version 2020)

• Message number: 046

• Message text: Extension table &1: Extension structure is inconsistent

What causes this issue?

Extension tables have a special technical structure. They consist of two
parts:
predefined fields
user defined fields
Structure of table &V1& is <ZH>not</> conform to this required format.

System Response

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

How to fix this error?

Extension tables are created automatically with required technical
structure.
You <ZH>cannot</> adjust or repair it using standard UIs.
Contact SAP for support.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_PE_CHECK_V2046 - Extension table &1: Extension structure is inconsistent ?

  The SAP error message "CNV_PE_CHECK_V2046 Extension table &1: Extension structure is inconsistent" typically occurs during data migration or conversion processes, particularly when using the SAP Landscape Transformation (SLT) or SAP Data Services tools. This error indicates that there is an inconsistency in the structure of an extension table, which can prevent successful data processing.
  Cause:
  
  Inconsistent Structure: The extension table defined in the system does not match the expected structure. This could be due to missing fields, incorrect data types, or discrepancies between the source and target systems.
  Configuration Issues: The configuration settings for the data migration or conversion process may not be correctly set up, leading to mismatches in the expected data structure.
  Changes in Data Model: If there have been recent changes to the data model (e.g., adding or removing fields in the extension table), this can lead to inconsistencies.
  Transport Issues: If the extension table was transported from one system to another, there may have been issues during the transport process that caused the structure to become inconsistent.
  
  Solution:
  
  Check Table Structure: Verify the structure of the extension table in the SAP system. Ensure that all fields are present and correctly defined (data types, lengths, etc.).
  Compare with Source: If applicable, compare the extension table structure with the source system to ensure consistency.
  Adjust Configuration: Review the configuration settings for the data migration or conversion process. Make sure that all necessary settings are correctly defined.
  Recreate Extension Table: If the structure is significantly inconsistent, consider dropping and recreating the extension table to ensure it matches the expected structure.
  Check for Updates: Ensure that you are using the latest version of the migration tools and that all relevant notes and patches from SAP have been applied.
  Consult SAP Notes: Look for specific SAP Notes related to this error message. SAP frequently releases notes that provide guidance on resolving known issues.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like SE11 (Data Dictionary) to check the table structure or SE80 (Object Navigator) for more comprehensive analysis.
  SAP Documentation: Refer to the official SAP documentation for data migration and conversion processes for detailed guidelines and best practices.
  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 the above solutions, it may be beneficial to reach out to SAP support for further assistance.