How To Fix IU406 - Inactive nametab or conversion control tables still contain entries

SAP Error Message - Details

• Message type: E = Error

• Message class: IU - Incremental Conversion (ICNV)

• Message number: 406

• Message text: Inactive nametab or conversion control tables still contain entries

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message IU406 - Inactive nametab or conversion control tables still contain entries ?

  The SAP error message IU406, which states "Inactive nametab or conversion control tables still contain entries," typically occurs in the context of the SAP system when there are inconsistencies or issues with the name tables or conversion control tables. This can happen during various operations, such as data migration, system upgrades, or when trying to activate or deactivate certain functionalities.
  Cause:
  
  Inactive Name Tables: The error indicates that there are name tables that are not active, which means that the system cannot find the necessary mappings or conversions for the data being processed.
  Conversion Control Tables: These tables may still contain entries that are not valid or are not properly configured, leading to the error.
  Data Inconsistencies: There may be inconsistencies in the data that are causing the system to fail in processing the required operations.
  System Configuration Issues: Incorrect configuration settings in the SAP system can lead to this error.
  
  Solution:
  
  Activate Name Tables: Check the status of the name tables involved. You can do this by navigating to the relevant transaction codes (like SE11 for Data Dictionary) and ensuring that the name tables are active.
  Check Conversion Control Tables: Review the conversion control tables for any entries that may be causing the issue. You can use transaction codes like SE11 or SE16 to view the contents of these tables.
  Delete Inactive Entries: If there are entries in the conversion control tables that are no longer needed or are invalid, consider deleting them or correcting them as necessary.
  Reconfigure Settings: If the issue is related to configuration, review the settings in the relevant configuration areas and make adjustments as needed.
  Transport Requests: If the issue arose after a transport request, ensure that all related objects were transported correctly and that there are no missing dependencies.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error message. There may be patches or updates that can resolve the issue.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SE11 (Data Dictionary), SE16 (Data Browser), and SE78 (SAP ArchiveLink) to investigate the tables and data involved.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Documentation: Review SAP documentation related to name tables and conversion control to understand their purpose and how they should be configured.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or reach out to SAP support for further assistance.