How To Fix IU670 - Migration running; logon not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: IU - Incremental Conversion (ICNV)

• Message number: 670

• Message text: Migration running; logon not possible

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 IU670 - Migration running; logon not possible ?

  The SAP error message "IU670 Migration running; logon not possible" typically occurs when a system is undergoing a migration process, such as a system upgrade or data migration, and the system is temporarily locked for user logins. This is a protective measure to ensure data integrity during the migration process.
  Cause:
  
  Ongoing Migration Process: The most common cause of this error is that a migration process is currently running in the SAP system. During this time, the system restricts user logins to prevent any changes that could affect the migration.
  System Maintenance: The system may be undergoing maintenance or updates, which can also lead to this error.
  Configuration Settings: Certain configuration settings in the SAP system may restrict logins during specific operations.
  
  Solution:
  
  Wait for Migration to Complete: The simplest solution is to wait until the migration process is completed. Once the migration is finished, the system will allow logins again.
  Check Migration Status: If you have access to the system logs or monitoring tools, check the status of the migration process. This can provide insights into how long the process is expected to take.
  Contact System Administrator: If you are unsure about the migration status or if it seems to be taking longer than expected, contact your SAP system administrator or the team responsible for the migration. They can provide updates and may be able to expedite the process if necessary.
  Review System Logs: If you have access, review the system logs (transaction SM21) for any errors or warnings that may indicate issues with the migration process.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to migration processes for specific guidance or known issues. SAP frequently publishes notes that address common problems and their solutions.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM37 (Job Monitoring) to check if there are any background jobs related to the migration that are still running.
  Documentation: Review any documentation related to the migration process that your organization may have prepared, as it may contain specific instructions or timelines.
  
  If the issue persists beyond the expected duration of the migration, further investigation may be required to identify any underlying problems.