How To Fix GT090 - Conversion of table & cannot be restarted

SAP Error Message - Details

• Message type: E = Error

• Message class: GT - Database utilities

• Message number: 090

• Message text: Conversion of table & cannot be restarted

What causes this issue?

The sources in the ABAP/4 Dictionary were presumably changed after the
conversion terminated, but before it was restarted.

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?

Restore the old version of the sources.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message GT090 - Conversion of table & cannot be restarted ?

  The SAP error message GT090, which states "Conversion of table & cannot be restarted," typically occurs during the process of database table conversion or migration, particularly when using the SAP Upgrade or Database Migration tools. This error indicates that the conversion process for a specific table has failed and cannot be resumed.
  Causes:
  
  Data Consistency Issues: There may be inconsistencies or corruption in the data of the table being converted.
  Locking Issues: The table might be locked by another process, preventing the conversion from completing.
  Insufficient Resources: Lack of system resources (like memory or disk space) can lead to conversion failures.
  Configuration Errors: Incorrect configuration settings in the SAP system or database can cause the conversion to fail.
  Version Compatibility: The version of the database or SAP system may not be compatible with the conversion process.
  
  Solutions:
  
  Check Logs: Review the detailed logs generated during the conversion process to identify the specific cause of the failure.
  Data Consistency Check: Use transaction codes like DB02 or DBACOCKPIT to check for inconsistencies in the database and resolve any issues found.
  Release Locks: Ensure that no other processes are locking the table. You can use transaction SM12 to check for and release locks.
  Resource Allocation: Ensure that the system has sufficient resources (CPU, memory, disk space) to perform the conversion.
  Configuration Review: Verify that all configuration settings are correct and compatible with the current version of SAP and the database.
  Restart the Process: If the issue is resolved, you may need to restart the conversion process. This may involve re-running the upgrade or migration tool.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  Related Information:
  
  SAP Notes: Search for specific SAP Notes related to GT090 for any patches or updates that may resolve the issue.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered and resolved similar issues.
  Backup: Always ensure that you have a backup of your data before performing any major operations like table conversions or migrations.
  
  If the problem persists after trying the above solutions, it may be necessary to contact SAP Support for further assistance.