How To Fix ATO401 - Item &1 has already been changed in system. Migration not possible.

SAP Error Message - Details

• Message type: E = Error

• Message class: ATO - Adaptation Transport Organizer Messages

• Message number: 401

• Message text: Item &1 has already been changed in system. Migration 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 ATO401 - Item &1 has already been changed in system. Migration not possible. ?

  The SAP error message ATO401 indicates that an item (denoted by &1) has already been changed in the system, which prevents the migration process from proceeding. This error typically occurs during data migration or when trying to update or transfer data related to an item that has already been modified.
  Cause:
  
  Concurrent Changes: The item may have been modified by another user or process after the migration process started.
  Data Locking: The item might be locked due to ongoing transactions or processes that are preventing changes.
  Inconsistent Data State: The item may be in a state that is not compatible with the migration process due to prior changes.
  
  Solution:
  
  Check for Concurrent Changes: Verify if any other users or processes have modified the item. If so, you may need to wait until those changes are completed or coordinate with the other users.
  Release Locks: If the item is locked, you may need to identify and release the lock. You can use transaction codes like SM12 to check for locks and SM21 for system logs.
  Rollback Changes: If possible, revert any changes made to the item that are causing the conflict. This may involve restoring the item to its previous state.
  Retry Migration: After ensuring that no changes are being made to the item, attempt the migration process again.
  Consult Logs: Check the application logs (transaction SLG1) for more detailed information about the error and any related issues that may provide further insights.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM12 (to check locks), SLG1 (to view application logs), and SE11 (to check data dictionary objects).
  SAP Notes: Search for SAP Notes related to ATO401 for any specific patches or updates that may address this issue.
  Documentation: Review SAP documentation regarding data migration processes to ensure compliance with best practices and guidelines.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or technical team for further assistance.