The transition of a risk from the risk register to the issue log occurs when a risk materializes, meaning it has happened. In project management, risks are potential problems that may or may not happen, and they are documented in the risk register. When a risk actually occurs, it becomes an issue and is then moved to the issue log for tracking and resolution. This is consistent with the PMBOK guide's definition and treatment of risks and issues. : = Project Management Institute (PMI) resources, including the PMBOK guide and PMP examination content outline, which detail the risk management process and the use of the risk register and issue log1234.