Salesforce Knowledge is the standard feature designed to solve this exact business problem. By creating a knowledge base with articles detailing resolutions, procedures, and FAQs, administrators can provide a centralized repository of information. The Knowledge component can be added to the Case Lightning record page, which uses case data (like the subject or description) to automatically suggest relevant articles to the support agent. This directly addresses the need for an efficient way to find documentation and similar case resolutions from within the Case page layout, reducing resolution time.

A. Create a custom object to capture popular case resolutions.

This is a non-standard solution that inefficiently replicates the functionality of Salesforce Knowledge, lacking features like versioning, data categories, and intelligent article suggestions.

B. Use an interview flow to capture Case details.

A flow is designed to guide users through a process, such as creating a case. It helps with data input but does not provide a mechanism for searching or retrieving existing knowledge articles.

C. Direct users to Global Search to look for similar cases.

This requires agents to navigate away from the case record, which is less efficient than having relevant information presented directly on the page via the Knowledge component.

1. Salesforce Help - Set Up Salesforce Knowledge: "Salesforce Knowledge lets you create and manage a knowledge base with your company information. You can then share it with customer service agents to help them close cases." This establishes Knowledge as the correct tool for the job.

2. Salesforce Help - Add the Knowledge Component to a Record Page: "The Knowledge component suggests articles relevant to a case. Agents can search for articles, attach an article to a case, and send articles to customers." This directly supports using the component on the Case page for efficiency, as required by the question.

3. Trailhead - Knowledge Basics for Lightning Experience - Unit: Get Started with Lightning Knowledge: "Lightning Knowledge gives your agents and customers an easy-to-use tool to find, share, and use information... Agents can use Knowledge right inside the Service Console next to their cases." This confirms the integration of Knowledge within the service workflow.

4. Salesforce Help - Work with Data Categories: "Data categories are used in Salesforce Knowledge... to help you classify and find articles... When you create data categories, you can control the visibility of articles." This explains a core feature for organizing the knowledge base to make it easier for agents to find information.