The consultant should use the Data Loader to migrate 100,000 historic cases from a legacy...

To make the process more efficient for agents who routinely access contact records first when routed a new Email-to-Case, the consultant should edit the navigation rules for the app that the agents use to set Case as a subtab of Contact. This adjustment optimizes the user interface by ensuring that when a case is opened, the associated contact record automatically appears as a subtab. This setup reduces the number of clicks needed to access relevant contact details, streamlining the workflow and saving time for agents. This method leverages the Salesforce Lightning Experience's capability to configure tab settings and navigation rules, enhancing the user experience and efficiency.