The Scrum Guidance Body usually defines a process for approving and managing changes throughout the

organization. In the absence of a formal process, it is recommended that small changes that do not have a

significant impact on the project be directly approved by the Product Owner. The tolerance for such small

changes could be defined at an organizational level or by the sponsor for a particular project. In most projects,

90% of Change Requests could be classified as small changes that should be approved by the Product

Owner. So, the Product Owner plays a very important role in managing changes in a Scrum Project.