How To Fix CNV_PE_UI_IF004 - &1 is not an extension table

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_PE_UI_IF -

• Message number: 004

• Message text: &1 is not an extension table

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_PE_UI_IF004 - &1 is not an extension table ?

  The SAP error message CNV_PE_UI_IF004 typically indicates that there is an issue related to the handling of extension tables in the context of a data migration or conversion process, particularly when using the SAP S/4HANA Migration Cockpit or similar tools.
  Cause:
  The error message CNV_PE_UI_IF004 occurs when the system expects a certain table to be an extension table, but it is not recognized as such. This can happen due to several reasons:
  
  Incorrect Table Configuration: The table in question may not be properly configured as an extension table in the system.
  Data Model Issues: There may be inconsistencies in the data model or the way the tables are defined in the system.
  Migration Settings: The settings or parameters used during the migration process may not align with the expected structure of the tables.
  Version Compatibility: The error may arise if there are compatibility issues between the version of the SAP system and the migration tools being used.
  
  Solution:
  To resolve the error CNV_PE_UI_IF004, you can take the following steps:
  
  Check Table Definition: Verify the definition of the table in the Data Dictionary (SE11) to ensure it is correctly set up as an extension table.
  Review Migration Settings: Go through the migration settings and ensure that the correct tables are being referenced and that the parameters are set correctly.
  Consult Documentation: Refer to the SAP documentation related to the specific migration or conversion process you are using. This may provide insights into the expected configurations.
  Use Transaction Codes: Utilize transaction codes like SE11 (Data Dictionary) and SE14 (Database Utility) to check the structure and settings of the tables involved.
  Check for Notes and Patches: Look for any SAP Notes or patches that may address this specific error or provide updates to the migration tools.
  Contact SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, providing them with the error details and context.
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes that may provide additional context or solutions for this error.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit, which may include troubleshooting steps for common errors.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the root cause of the error and implement a suitable solution.