# Enable JDrug and WHODrug Cross Reference Tool

Set up and manage the WHODrug Cross Reference Tool (CRT) Japan, which cross-references JDrug and WHODrug codes for case processing and submissions.

## About the Feature

With the 24R3 release, Veeva Safety now cross-references JDrug and WHODrug codes during case processing using the WHODrug Cross Reference Tool (CRT) Japan. This eliminates manual code entry in the following instances:

* Adding the applicable WHODrug code when processing a Japan domestic _Case_ with an _External Product_ coded using a JDrug code.
* Adding the applicable JDrug code when processing a Japan foreign _Localized Case_ with an _External Product_ coded using a WHODrug code.

When new versions of the WHODrug CRT Japan are released, they become available in your Vault. You control which version of the WHODrug CRT Japan Vault uses for coding.

Once configured, <a href="/en/gr/784186/">Manage the WHODrug Cross Reference Tool (CRT) Japan</a>
 describes how to maintain the WHODrug CRT Japan version, and <a href="/en/gr/01163/">Code Japan Drug Dictionary Products</a>
 and <a href="/en/gr/01165/">Code WHODrug Products</a>
 describe how to use this feature.

## Prerequisites

Before configuring this feature in your Vault, consider the following:

* Your organization must maintain a valid WHODrug CRT Japan license.
* You must contact your Veeva Representative to add your current WHODrug CRT Japan license for use in Veeva Safety.
  * Your WHODrug CRT Japan license will be validated with WHO-UMC. Customers with invalid licenses will not be able to fetch WHODrug CRT Japan release versions.
* Your Vault must include both a <a href="/en/gr/01186/">Japan Drug Dictionary</a>
 and a <a href="/en/gr/01190/">WHODrug dictionary</a>
 in the _Active_ state. These dictionaries must have values in the _Active JDrug Version_ and _Active WHODrug Version_ fields respectively.

## Configure the Dictionary Object

To configure the _Dictionary_ object, you must [create the _WHODrug CRT Japan layout_][1], [configure the _Active Version_ field][2], and [configure the _Fetch Dictionary Releases_ user action][3]. To complete these procedures, navigate to **Admin > Configuration > Objects > Dictionary**.

### <a id="create-crt-layout"></a>Create the WHODRug CRT Japan Layout

Create an <a href="/en/gr/26387/#how-to-create-an-object-layout">object layout</a>
 for the _Dictionary_ object:

1. Navigate to the **Layouts** tab and select **Create**.
2. In the _Add Layout_ window, in the **Object Type** field, select **WHODrug CRT Japan**.
3. Select **Done**.
4. On the _Dictionary: Record Name_ page, in the _Details_ section, replace the **Active CRT Version** field with the **Active CRT Version** control field with the **Slider** (<img class="inline" src="https://platform.veevavault.help/assets/images/saf-app-control.png" alt="app-control" style="" />) icon.
5. Optional: Based on your business process, remove any fields from the _Details_ section.
6. Insert a <a href="/en/gr/26387/#how-to-add-detail-forms">Detail Form section</a>
 with the following configuration:
   * **Section Label**: `System Information`
   * **Fields**:
     * **Last Modified Date**
     * **Last Modified By**
     * **Created Date**
     * **Created By**
7. Select **Save**.

### <a id="config-active-vers"></a>Configure the Active Version Field

Complete the following steps to configure the _Active Version_ field to display which version of the WHODrug CRT Japan is active in your Vault:

1. Navigate to the **Fields** tab and select **Active Version**. 
2. Select **Edit**.
3. Edit the **Formula Expression** to match the following: \
`if(not(IsBlank(active_meddra_version__v)), text(active_meddra_version__v), if(not(IsBlank(active_imdrf_version__v)), text(active_imdrf_version__v), if(not(IsBlank(active_whodrug_version__v)), text(active_whodrug_version__v), if(not(IsBlank(active_jdrug_version__v)), text(active_jdrug_version__v), if(not(IsBlank(active_crt_version__v)), text(active_crt_version__v), '')))))`
4. Select **Save**. If an _Alert_ message appears, select **OK**.

### <a id="config-fetch"></a>Configure the Fetch Dictionary Releases Action

Add the _Fetch Dictionary Releases_ <a href="/en/gr/32857/#how-to-assign-user-actions">user action</a>
 to the _WHODrug CRT Japan_ object type on the _Dictionary_ object.

## Configure the WHODrug CRT Japan Dictionary

To configure the _Dictionary_ object, you must [add the _WHODrug CRT Japan_ dictionary][6] and [configure the active version][7]. To complete these procedures, navigate to **Business Admin > Objects > Dictionaries**.

### <a id="add-whodrugcrt"></a>Add the WHODrug CRT Japan Dictionary

Complete the following steps to add the _WHODrug CRT Japan_ dictionary to your Vault:

1. On the _Dictionaries_ page, select **Create**.
2. From the **Select Dictionary Type** picklist, select **WHODrug CRT Japan** and then select **Continue**.
3. On the _Create WHODrug CRT Japan_ page, in the **Name** field, enter a name for the dictionary. We recommend `WHODrug CRT Japan`.
4. Select **Save**.

### <a id="active-version"></a>Update the Active CRT Version

When first adding the WHODrug CRT Japan, you must update the active version.

1. On the _Dictionaries_ page, select the WHODrug Japan CRT dictionary you added in the previous procedure.
2. From the **All Actions** menu, select **Fetch Dictionary Releases**.
3. Select **Edit**.
4. In the **Active CRT Version** field, select the desired WHODrug CRT Japan version from the picklist.
5. Select **Save**.

**Result**

Vault imports the selected WHODrug CRT Japan version. When the import is complete, Vault provides system and email notifications. When the dictionary status becomes _Active_, Vault cross-references WHODrug and JDrug codes using that WHODrug CRT Japan version.

[1]: #create-crt-layout
[2]: #config-active-vers
[3]: #config-fetch
[6]: #add-whodrugcrt
[7]: #active-version