How To Fix IU670 - Migration running; logon not possible

IU670 - Overview

• 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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

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