High volumes of inquiries are the result of large marketing campaigns or special times when potential customers write to a company in droves. These messages can be for different reasons. To ask about a product, about stock, general questions about the store or company, doubts about services, consultation of shipping statuses, etc.
As you can see, there are many types of queries that customers and leads can make in a month. Some are really easy to solve and others are much more difficult and time consuming. Our recommendation is that you have a tool like Callbell to help you organize your messages, distribute them among your advisors and respond to them efficiently to avoid confusion and discontent among your clients.
If you manage to prepare well for these types of dates and have an organization and tools that help you handle these amounts of work. Rest assured that you will achieve many more sales and that your relationship with customers will improve enormously.