The Product Backlog is a list of functionalities, ideas, technical requirements, enhancements, and faults maintained and managed by the Product Owner. This is the only thing considered during Sprint Planning.
The Scrum Master isn’t a role for everyone. To perform this function well, one needs to be a person with comprehensive skills — both technical and soft ones. Besides being the framework’s watchman, he should be also a trusted leader to his team.
In the middle of November, we participated in ODK convening 2019 in Seattle. We went there in 2017 for the first convening and this year we were invited again to help make important decisions about the project we have been working on so hard for the last three years.