Can a Sprint Planning meeting conclude if only part of the Sprint work is decomposed into smaller units?

The conclusion of a Sprint Planning meeting can indeed occur even if only a part of the Sprint work is fully decomposed into smaller units. In Scrum, the focus during Sprint Planning is to create a shared understanding of the Sprint Goal and to determine the work needed to achieve it. This involves selecting and refining the Product Backlog items for the upcoming Sprint.

When a portion of the work has been broken down into smaller tasks, it is sufficient for the team to move forward as long as they give an estimate and a rough understanding of the remaining work. The Scrum framework emphasizes collaboration, flexibility, and continuous adaptation, allowing teams to defer finer details of task decomposition until later in the Sprint. This empowers the team to begin work on the highest-priority items without being bogged down by the need to have every single detail sorted out in the initial stages of planning.

Thus, the option that states the meeting can conclude as long as the remaining work is estimated aligns with the adaptive nature of Scrum, allowing teams to maintain momentum while remaining focused on delivering value.