How To Fix CNV_MBT350 - Activity &1 is already scheduled

CNV_MBT350 - Overview

• Message type: E = Error

• Message class: CNV_MBT - PCL message class

• Message number: 350

• Message text: Activity &1 is already scheduled

Self-Explanatory Message

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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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CNV_MBT350 - Details

• The SAP error message CNV_MBT350 with the description "Activity &1 is already scheduled" typically occurs during the execution of a migration or data transfer process in SAP, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that the activity you are trying to schedule is already in the process of being executed or has been scheduled for execution.
  
  Cause:
  
  Duplicate Scheduling: The most common cause is that the same activity has already been scheduled for execution, either by the same user or another user.
  System Lock: The system may have a lock on the activity due to ongoing processes or transactions that are not yet completed.
  Concurrency Issues: If multiple users or processes are trying to schedule the same activity simultaneously, it can lead to this error.
  
  
  Solution:
  
  Check Scheduled Activities: Review the list of scheduled activities in the migration cockpit or relevant transaction to see if the activity is already