# Defining Sources

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## Sources and Partitioning

Sources can be partitioned. 

* If a source is created in a particular partition and CMDB items are also partitioned, CMDB items created from the external resources discovered on this source are assigned the source’s partition. 
* If a source is partitioned, but CMDB items are not partitioned, the CMDB items created from the external source are not partitioned.
* If a source is not partitioned, the CMDB Items created from the external resources can inherit the partition through the template applied to them (if a partition is assigned to the template). 
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## Adding a Source

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### Before you start

You must be licensed for the selected connector, and the Connector DLL must be installed in the correct location. See Installing Connectors for more information.

You must have **Integration Setup** selected in the Admin tab of your **General Access Security Role**.
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1. Select ≡ > **Admin** > **Integration**.

   The **Integration Platform Settings** window appears.
2. Select the **Sources** option from the explorer pane.
3. The **Integration Sources** window has a browse table listing the sources that are currently configured in your system. It displays the following information for each source:

<table data-header-hidden><thead><tr><th width="193"></th><th></th></tr></thead><tbody><tr><td>Source</td><td>the displayed name of the source</td></tr><tr><td>Connector</td><td>the connector used to configure the source</td></tr><tr><td>Status</td><td><p>the status of the source. This can be Active or Inactive.</p><p>Inactive sources are excluded from scans.</p></td></tr></tbody></table>

1. Select the source type  from the toolbar.
2. In the dialog box, the drop-down list displays all installed connectors that are set to **Visible** in the **Integration Connectors** window. Select a connector for the source from the drop-down list and click OK.
3. If you are not licensed for the selected connector, or the Connector DLL is not installed in the correct location, selecting OK will display an error message and you will not be able to create the source.
4. Specify the source parameters in the **Integration Source Details** window, scrolling down to complete all fields lower down in the window.
5. Select the **Save** icon to save the changes.

## Updating a Source

1. Select ≡ > **Admin** > **Integration**.

   The **Integration Platform Settings** window appears.
2. Select the **Sources** option from the explorer pane.
3. The Integration Sources window has a browse table listing the sources that are currently configured in your system.
4. Select the source you want to update and either double-click or select  on the toolbar.
5. Specify the source parameters in the **Integration Source Details** window, scrolling down to complete all fields lower down in the window.
6. Select the **Save** icon to save the changes.

## Deleting a Source

1. Select ≡ > **Admin** > **Integration**.

   The **Integration Platform Settings** window appears.
2. Select the **Sources** option from the explorer pane.
3. The Integration Sources window has a browse table listing the sources that are currently configured in your system
4. Select the source you want to delete.
5. Select the **Delete** icon from the toolbar. Confirm the deletion.

## Testing a source

1. Select ≡ > **Admin** > **Integration**.

   The **Integration Platform Settings** window appears.
2. Select the **Sources** option from the explorer pane.
3. The Integration Sources window has a browse table listing the sources that are currently configured in your system.
4. Select the source you want to test.
5. Select the **Test** icon from the toolbar to verify that ASM Core can connect to this source. A dialog box appears informing you of the success or failure of this test.