How To Fix CNV_MBT401 - Procedure monitor is started in new window

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_MBT - PCL message class

• Message number: 401

• Message text: Procedure monitor is started in new window

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_MBT401 - Procedure monitor is started in new window ?

  The SAP error message CNV_MBT401 indicates that the procedure monitor is being started in a new window. This message is typically associated with the SAP Data Migration process, particularly when using the SAP S/4HANA Migration Cockpit or other migration tools.
  Cause:
  The error message CNV_MBT401 usually occurs due to one of the following reasons:
  
  User Interface Behavior: The procedure monitor is designed to open in a new window or session. This is a standard behavior in some SAP transactions and tools, especially when monitoring long-running processes.
  Session Management: If the system is configured to restrict the opening of new sessions or windows, this could lead to confusion or errors when trying to access the procedure monitor.
  Browser or GUI Settings: If you are using a web-based interface or a specific SAP GUI version, settings related to pop-ups or new windows might affect how the procedure monitor is displayed.
  
  Solution:
  To resolve the issue, you can try the following steps:
  
  Check User Authorizations: Ensure that you have the necessary authorizations to access the procedure monitor. Sometimes, lack of permissions can lead to unexpected behavior.
  Adjust SAP GUI Settings: If you are using the SAP GUI, check the settings related to session management. You can adjust the number of sessions allowed or how new windows are handled.
  Browser Settings: If you are using a web-based interface, check your browser settings to ensure that pop-ups are allowed. This can affect how new windows are opened.
  Use the Correct Transaction: Make sure you are using the correct transaction code or tool for monitoring the migration process. Sometimes, using an outdated or incorrect transaction can lead to issues.
  Consult Documentation: Refer to the official SAP documentation for the specific migration tool you are using. There may be specific instructions or known issues related to the procedure monitor.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the CNV_MBT401 message. SAP frequently updates its knowledge base with solutions to common problems.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Migration Cockpit Documentation: Review the documentation for the SAP S/4HANA Migration Cockpit or the specific migration tool you are using for any additional troubleshooting steps.
  
  If the issue persists after trying the above solutions, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.