# Modifying a task
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You can modify a task if you need to change the task settings, table mapping, or other settings. You can also enable and run premigration assessments before running the modified task. You can modify a task in the console by selecting the task and choosing **Modify**. You can also use the CLI command or API operation [ModifyReplicationTask](https://docs.aws.amazon.com/dms/latest/APIReference/API_ModifyReplicationTask.html). 

There are a few limitations to modifying a task. These include the following:
+ You can't modify the source or target endpoint of a task.
+ You can't change the migration type of a task.
+ Tasks that have run must have a status of **Stopped** or **Failed** to be modified.