How much of the Sprint Backlog must be defined during the Sprint Planning meeting?

During Sprint Planning, the focus is on achieving a shared understanding of how much work the Development Team can commit to completing during the upcoming Sprint. It’s essential that the team defines the Sprint Backlog sufficiently to allow for an accurate forecast of what can be accomplished within the Sprint timeframe.

Choosing to establish "enough for the Development Team to create a forecast for the Sprint" acknowledges the dynamic nature of Scrum, where requirements can evolve. The team needs clarity on items to ensure they can plan adequately. This involves identifying user stories or tasks that are prioritized to deliver valuable increments and understanding the associated effort or complexity.

This approach emphasizes that while complete definition of all items in the Sprint Backlog isn’t necessary at this stage, there must be enough detail to guide the team in making a realistic commitment for the Sprint. This also helps maintain flexibility and adaptability, which are key tenets in Scrum, allowing the team to respond to emerging insights and changes as the Sprint progresses.