How To Fix IU486 - <<< ICNV nametab generation with errors

SAP Error Message - Details

• Message type: E = Error

• Message class: IU - Incremental Conversion (ICNV)

• Message number: 486

• Message text: <<< ICNV nametab generation with errors

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 IU486 - <<< ICNV nametab generation with errors ?

  The SAP error message IU486, which states "ICNV nametab generation with errors," typically occurs during the generation of name tables for the conversion of data types in the SAP system. This error can arise due to various reasons, including issues with the data dictionary, inconsistencies in the naming conventions, or problems with the underlying data structures.
  Causes:
  
  Data Dictionary Issues: There may be inconsistencies or errors in the data dictionary objects (like tables, views, or data elements) that are being used in the conversion.
  Naming Conflicts: If there are naming conflicts or if the naming conventions are not followed properly, it can lead to errors during the generation of name tables.
  Transport Issues: If the objects were transported from one system to another, there might be missing dependencies or inconsistencies.
  System Configuration: Incorrect configuration settings in the SAP system can also lead to this error.
  
  Solutions:
  
  Check Data Dictionary Objects: Review the data dictionary objects involved in the conversion. Ensure that all objects are correctly defined and activated.
  Review Naming Conventions: Ensure that all naming conventions are followed and that there are no conflicts in the names of the objects.
  Rebuild Name Tables: You can try to regenerate the name tables by using transaction codes like SE11 (Data Dictionary) or SE14 (Database Utility) to check and activate the relevant objects.
  Transport Consistency: If the issue arose after a transport, check the transport logs for any errors and ensure that all dependent objects are also transported correctly.
  Check for Notes: Look for SAP Notes related to this error message in the SAP Support Portal. There may be specific patches or updates that address this issue.
  System Logs: Check the system logs (transaction SM21) for any additional error messages that might provide more context about the issue.
  
  Related Information:
  
  Transaction Codes: SE11 (Data Dictionary), SE14 (Database Utility), SM21 (System Log).
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal using the error message or related keywords.
  Documentation: Review SAP documentation related to data conversion and name table generation for best practices and troubleshooting steps.
  
  If the issue 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.