# See Action Items Across Case Versions

Copying Action Items across Case versions makes communication on Case tasks clearer and easier. Complete the following sequence of steps to see all open Action Items on the **Case Number** field.

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      <p><strong>Note</strong>: Depending on the version of your Vault, the following configuration may already be complete.</p>
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## Create Case Number Lookup

To configure the **Case Number** field to include a Lookup field for Case Numbers, complete the following steps.

1. Go to **Admin > Configuration > Objects > User Task > Fields**.
2. Select **Create**.
3. Complete the **Create Field** form with the following information:
    * **Field Type:** Lookup
    * **Label:** Case Number
    * **Name:** `case_number__c`
    * **Lookup Relationship:** Case `(case_version__vr)`
    * **Lookup Source Field:** Case Number
4. Select **Save**.

**Result**

Existing and new **Case Number** fields will include a lookup for Case Number.

## Add the Case Number Field to the Case Task Object Type

On the **User Task** object, update the **Case Task** object type to include the **Case Number** field.

1. Go to **Admin > Configuration > Objects > User Task > Object Types**.
2. Select the **Actions** menu, and then select **Edit Object Type Fields**.
3. In the **Case Task** column, select the **Case Number** checkbox.
4. Select **Save**.

## Update the Case Number Layout

Complete the following steps to include Action Items in the **Case Number** field. 

1. Go to **Admin > Configuration > Objects > Case Number > Layouts**.
2. Select **Case Number Detail Page Layout**.
3. Add a Related Object section for **User Task**.
  * We recommend excluding Action Items from Cases in the Closed state. To do so, add the following to the Criteria VQL field: `state__v != 'closed_state__c'`.
4. To rearrange sections, drag and drop.
5. Select **Save**.

**Result**

When processing Cases, hovering over the **Case Number** field displays Action Items from across all Case versions.