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url: /statelake/administering-statelake/designer/actions/add-data-data-tab.md
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# Add Data - Data Tab

The fields required are specific to the definition selected.

The **Data** tab contains a list of references to **Data Definitions** that are used within this **Action**. It allows you to provide run time settings for the **Data Connections** assigned to the **Data Definitions**. It also assists the **Statelake** application to manage the connection and opening of the **Data Definitions** in the most efficient manner.

All the other tabs of the **Action** that has reference to a **Data Definition** are referring to the list of **Data Definitions** on this tab.

You must add a reference to this tab before you can use the **Data Definition** in the other tabs. Any references to **Data Connections** will also only include the **Data Connections** assigned to the **Data Definitions** on this tab.

::: info
When modifying an existing process, it is a common mistake to reassign the **Data Connections** on the **Data Definitions** themselves, but not update the assignments on this **Data Tab**. Any change to the **Data Connections** on the **Data Definitions** themselves will not change where the **Action** connects to retrieve its data.
:::

Any **Data Definitions** that have been created for the **Action** will be listed under the **Data Tab**.

To edit any existing items, single-click on the item.

To remove any unwanted **Data Definitions**, double-click on the item and confirm when requested.