What is Product Backlog?
The product backlog is the single, ordered list of all potential work for a product — features, enhancements, bug fixes, and technical work. It is the team's source of truth for "what's next," and it is dynamic: items are added, removed, re-estimated, and reprioritized as the team learns.
A healthy backlog is prioritized so the most valuable, well-understood items sit at the top, ready to be pulled into a sprint, while lower items remain coarse and flexible. Keeping it groomed is an ongoing activity called backlog refinement.
Owning and prioritizing the backlog is one of the most central PM (or Product Owner) responsibilities. The order of the backlog is effectively the product's near-term strategy made concrete, so PMs use prioritization frameworks like RICE or value-vs-effort to decide what rises to the top.
Examples
- A PM reorders the backlog after a major customer churns, elevating reliability fixes above new features.
- The top 10 backlog items are fully refined with acceptance criteria; items below are rough placeholders.
Where PMs use this
Related terms
User Story
A short, plain-language description of a feature told from the perspective of the user who wants it.
Epic
A large body of work that is too big for a single sprint and is broken down into multiple user stories.
Prioritization
The discipline of deciding what to work on next by weighing value, effort, and strategic fit.
Sprint Planning
The meeting where a team selects and commits to the work it will complete in the upcoming sprint.
Product Owner
A Scrum role responsible for maximizing product value by owning and prioritizing the backlog.