You are part of the IT support team for a retail business that operates 7 days a week with sales peaks over weekends. The technical team proposes Sunday night as a change window. After a few updates, the sales team reports that syncing stock and reports are disrupted on Monday mornings. Questions 4.1. What went wrong in planning the maintenance window? 4.2. How could a better understanding of business patterns help? 4.3. What steps should be taken before finalising a maintenance window?