How To Fix UMGLOG420 - Table DDXTT_CONV_UC contains entries.

SAP Error Message - Details

• Message type: E = Error

• Message class: UMGLOG - Message class for the SPUMG Main Log

• Message number: 420

• Message text: Table DDXTT_CONV_UC contains entries.

What causes this issue?

The check "Inactive Nametabs UC" looks for table entries in table
DDXTT_CONV_UC. The table is the so called "inactive alternate nametab".
In general this table is empty. A non empty table DDXTT_CONV_UC
indicates that nametabs have been generated not correctly. This can have
an impact on the consistency of the system after the Unicode conversion
because of the nametab switch during Unicode conversion.
Please read note 932779 for more information on the handling of nametabs
in the Unicode conversion.

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?

Before the Unicode conversion you have to delete all the entries from
the table DDXTT_CONV_UC.

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 UMGLOG420 - Table DDXTT_CONV_UC contains entries. ?

  The SAP error message UMGLOG420 indicates that the table DDXTT_CONV_UC contains entries that are causing an issue, typically related to the conversion of data types or structures during a transport or upgrade process. This error is often encountered in the context of system upgrades, data migrations, or when working with transport requests.
  Cause:
  The presence of entries in the DDXTT_CONV_UC table suggests that there are unresolved conversion issues related to data types or structures that need to be addressed before proceeding with the operation that triggered the error. This table is used to store conversion information for data types, and if it contains entries, it indicates that there are pending conversions that need to be resolved.
  Solution:
  To resolve the UMGLOG420 error, you can follow these steps:
  
  
  Check the Contents of the Table:
  
  Use transaction code SE11 or SE16 to view the contents of the DDXTT_CONV_UC table. This will help you identify which entries are causing the issue.
  
  
  
  Analyze the Entries:
  
  Look for specific entries that may indicate which data types or structures are problematic. This may require some understanding of the data model and the context in which the error occurred.
  
  
  
  Delete or Adjust Entries:
  
  If the entries in the table are no longer needed or are remnants of a previous operation, you may consider deleting them. However, be cautious and ensure that you understand the implications of removing these entries.
  If the entries are valid, you may need to adjust the related data types or structures in your system to resolve the conversion issues.
  
  
  
  Run Conversion Programs:
  
  If applicable, run any necessary conversion programs or reports that may help to resolve the issues related to the entries in the DDXTT_CONV_UC table.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates that can help resolve the issue.
  
  
  
  Contact SAP Support:
  
  If you are unable to resolve the issue on your own, consider reaching out to SAP Support for assistance. Provide them with the details of the error and any relevant information about your system configuration.
  
  
  
  Related Information:
  
  Transaction Codes: SE11 (Data Dictionary), SE16 (Data Browser), ST22 (Dump Analysis), SM21 (System Log).
  SAP Notes: Always check for the latest SAP Notes related to your version of SAP and the specific error message.
  Documentation: Review SAP documentation related to data type conversions and transport management for additional context and guidance.
  
  By following these steps, you should be able to identify and resolve the underlying issues causing the UMGLOG420 error in your SAP system.