The Developers decide when to update the Sprint Backlog during the Sprint. The Product Owner can clarify and negotiate scope, but the plan belongs to the people doing the work.
Exam Question
Who determines when it is appropriate to update the Sprint Backlog during a Sprint? (choose the best answer)
- A. The Product Owner.
- B. The Developers.
- C. The Scrum Team.
- D. The Project Manager.
Correct Answer
B. The Developers.
Why This Is the Correct Answer
The Scrum Guide says “The Sprint Backlog is a plan by and for the Developers.” It also says that it “is updated throughout the Sprint as more is learned.” Because the Developers own the plan, they decide when it needs to change, for example after the Daily Scrum or as soon as they discover new work. When changes affect scope, they talk with the Product Owner, since scope may be clarified and renegotiated as more is learned. The Developers still own the Sprint Backlog itself, and no one else rewrites their plan.
Why the Other Options Are Wrong
A. The Product Owner. The Product Owner owns the Product Backlog, not the Sprint Backlog. They negotiate scope with the Developers but do not edit their plan.
C. The Scrum Team. This sounds inclusive, but the Guide is specific that the Sprint Backlog is by and for the Developers.
D. The Project Manager. Scrum has no Project Manager. Outside direction over the plan conflicts with self-management.
Exam Tip
When asked who owns or changes something, match it to its owner: Product Backlog to the Product Owner, Sprint Backlog to the Developers. “The Scrum Team” is a tempting but less precise answer.
Key Takeaways
- The Sprint Backlog belongs to the Developers.
- It is updated whenever the Developers learn something new.
- Scope changes are negotiated with the Product Owner.

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More PSM I exam questions
- Who is accountable for tracking the remaining work toward the Sprint Goal?” (PSM I)
- True or False: Cross-functional teams are optimized to work on one technical layer of a system only (e.g. GUI, database, middle tier, interfaces).
- What are the advantages of keeping component teams while starting Scrum?
- What are three things to consider when deciding to move away from such component teams toward feature teams?
- User documentation is part of your Definition of Done. However, there are not enough technical writers for all teams. Your Scrum Team does not have a Technical Writer. What should the Scrum Team do?” (PSM I)

