To avoid the challenges and risks of premature or late closure, it is essential to establish and follow criteria and guidelines for closing problems. These should include defining and agreeing on the closure criteria, verifying and validating the closure criteria, and communicating and documenting the closure. The closure criteria should be aligned with IT service level agreements and objectives. The Problem Manager, problem owner, and relevant stakeholders should check that the problem has been resolved or mitigated, that the root cause and solution have been identified and verified, that no further incidents are likely to occur due to the same problem, and that the problem record has been updated with all relevant information. After closing the problem, communication should be sent to customers, users, and IT support staff about the closure of the problem, root cause, solution, and lessons learned. Problem Management reports and metrics should also be updated with closure data.