If reference relationships exist among apps as a result of Lookup field/Related Records field settings, you cannot delete the app independently.

To delete an app independently, you need to remove its reference relationship with other apps.
You can remove reference relationships in either of the following ways.
Note that, deleting an app requires the management permission for the app.

• Auto-detect reference relationships among apps using deletion dialog
  When you try to delete an app, apps and fields that have reference relationship with that app are automatically detected. Move to the app settings screen from the detection results screen, and remove the reference relationship. Then, try to delete the app again.

• Manually remove the reference relationship, and then delete the app
  You can manually remove the reference relationship, and then delete the app.

We describe the steps to delete one of the apps included in the Sales CRM Pack in the above two ways.

1. Open the app that you want to delete, then click the App Settings icon (the gear-shaped icon at the upper right of the "View" screen).
   

2. Click the App Settings tab, and click Delete This App under Deletion.

3. Click Delete This App on the confirmation screen.

4. If the confirmation screen opens again, click Delete App.
   
   Apps that have reference relationship with the app to be deleted are automatically checked. If there is any app which has reference relationship, "An app(s) that refers to this app was found." screen is displayed.

5. In the "An app(s) that refers to this app was found." screen, click Remove References Manually.
   

   
   The "Remove References Manually" screen is displayed, and apps and fields that directly refer the app to be deleted are shown.

6. Click on the link displayed on the "Remove References Manually" screen to move to the app settings.
   

7. Delete the "Lookup" or "Related records" field that was displayed on the "Remove References Manually" screen. Then, update the app.
   Example: In this example, delete the Lead Title (Lookup field) and the Lead Details (Related records field), which are shown in step 6.

8. Repeat steps 6 and 7 to remove all references.

9. Reopen the app settings page for the app to be deleted, and click Delete This App in the "App Settings" tab to redo the app deletion.

By deleting the following fields in apps, you can remove reference relationships among apps included in the Sales CRM Pack. Delete the target app after dissolving reference relationship.

• Activity History App
  Delete the "Company Name", "Lead Title", and "Lead Details" fields.

• Lead Management App
  Delete the "Company Name" and "Related Activity History" fields.

• Customer Management App
  Delete the "Leads" and "Activity History" fields.

The following example shows how to delete the Customer Management app included in the Sales CRM Pack.

1. Open the Activity History app, then click the App Settings icon (the gear-shaped icon at the upper right of the "View" screen).
   

2. Hover the cursor over the Settings icon (the gear-shaped icon) at the upper right of the "Company Name" field (the "Lookup" field), then click Delete.

3. Click Delete on the confirmation screen.

4. Hover the cursor over the Settings icon (the gear-shaped icon) at the upper right of the "Lead Title" field (the "Lookup" field), then click Delete. On the confirmation screen, click Delete.

5. Hover the cursor over the Settings icon (the gear-shaped icon) at the upper right of the "Lead Title" field (the "Lookup" field), then click Delete. On the confirmation screen, click Delete.

6. Click Update App at the upper right of the screen.

7. On the confirmation dialog, click Update App.

1. Open the Lead Management app, then click the App Settings icon (the gear-shaped icon at the upper right of the "View" screen).
   

2. Hover the cursor over the Settings icon (the gear-shaped icon) at the upper right of the "Company Name" field (the "Lookup" field), then click Delete.

3. Click Delete on the confirmation screen.

4. Click Update App on the upper right side of the screen.

5. On the confirmation dialog, click Update App.

1. Open the app to delete (the Customer Management app) and click the App Settings icon (the gear-shaped icon at the upper right of the "View" screen).
   

2. Click the App Settings tab, and click Delete This App under Deletion.

3. Click Delete This App on the confirmation screen.