Before solving a customer's problem, what must you find out?

Finding out all relevant information before solving a customer's problem is essential for effective customer service. Knowing who the customer is allows you to understand their history with the company, any previous interactions, and their preferences. Understanding the nature of their situation provides insight into the specific issue they are facing, which is crucial in determining the appropriate resolution.

Additionally, knowing when the problem occurred can provide context that may affect the problem-solving process, such as whether it is a recent issue or part of a recurring problem. Therefore, gathering comprehensive information about the customer and their situation ensures a more tailored and effective response to their needs, which is why the correct answer encompasses all the aspects mentioned.