# Adding and duplicating tasks

As the default task definitions are generated automatically (by discovering the Landing Zone tables), there is usually no reason to manually create or duplicate an task. One possible reason to duplicate an task is if your Metadata contains different types of tables and you want to manage them in separate tasks. An exception to this is if you import your model from ERwin without first defining global mappings. In such a case, you will need to manually add the Task and create the mappings.

For more information on global mappings, see [Managing global mappings](https://help.qlik.com/en-US/compose/December2024/Content/ComposeDWDL/Main/DW/Model/manage_global_mappings.htm).

The following task types are available:

* **Full Load** - Loads the selected tables from the Landing Zone into the Storage Zone.
* **Change Processing** - Updates the Storage Zone tables with the Landing Zone changes.
* **Full Load and Change Processing** - Loads the selected tables into the Storage Zone and then updates them with the Landing Zone changes.

| **To** | **Do This** |
| --- | --- |
| Add a new Task | <ol> <li> <p>Click the <b>Manage</b> button at the bottom left of the <b><span>Storage Zone</span></b> panel.</p> <p>The <b>Manage Tasks </b>window opens.</p> </li> <li> <p>Click the <b>New Task</b> toolbar button.</p> <p>The <b>Add New Task</b> window opens.</p> </li> <li> <p>Specify a name for the task.</p> <div><span>Warning note</span>Task names cannot contain the following characters: /\,&amp;#%$@=^*+"'`~?&lt;&gt;:;[]{} as well as all non-printable characters (below 0x20). The task name can contain a single dot, but it cannot be the first or last character.</div> </li> <li>Optionally, specify a description.</li> <li>Choose <b>Full Load</b> and/or <b>Change Processing</b> as the task type.</li> <li>Click <b>OK</b>.</li> <li>Select the task name in the left pane and continue from <a href="https://help.qlik.com/en-US/compose/December2024/Content/ComposeDWDL/Main/DL/Storage Zone/edit_column_mappings_hive.htm">Column mappings</a>.</li> </ol> |
| Duplicate a Task | <ol> <li> <p>Click the <b>Manage</b> button at the bottom left of the <b><span>Storage Zone</span></b> panel.</p> <p>The <b>Manage Tasks </b>window opens.</p> </li> <li> <p>Select the task you want to duplicate and then click the <b>Duplicate</b> toolbar button.</p> <p>The <b>Duplicate </b>window opens.</p> </li> <li>Specify a <b>Name</b> for the new Task.</li> <li>Select a <span>Landing Zone</span>.</li> <li>Optionally change the default <b>Schema</b>.</li> <li>Select the<b> Task type</b> according to your <span>Replicate</span> task type.</li> <li>Click <b>OK</b>.</li> <li>Select the task name in the left pane and continue from <a href="https://help.qlik.com/en-US/compose/December2024/Content/ComposeDWDL/Main/DL/Storage Zone/edit_column_mappings_hive.htm">Column mappings</a>.</li> </ol> |