Eight common Sprint Planning mistakes, and the fix for each

Sprint Planning has the most moving parts of the four events and the most ways to go slightly wrong. A planning meeting that is a little off rarely fails loudly. It produces a Sprint that is a bit rushed, a Sprint Goal that nobody mentions in week two, and a Review where the team is a little apologetic. The pattern gets accepted. Here are eight mistakes that cause it, and what the Guide suggests instead.

1. No Sprint Goal, or a list of items

Symptom. Asked what the goal is, someone lists the stories. Or the goal is "complete the Sprint Backlog".

Why it matters. The Guide treats the Sprint Goal as the single objective for the Sprint, which gives flexibility on the exact work and encourages the team to work together instead of on separate initiatives. A list of items offers none of that.

Fix. Ask "why is this Sprint valuable to stakeholders?" and write one sentence that answers it. The Guide says the goal must be finalised before the end of the meeting. See writing a Sprint Goal.

2. The Product Owner or manager assigns the work

Symptom. Names appear against tasks before the Developers have spoken.

Why it matters. The Guide says how items are turned into Increments is at the sole discretion of the Developers, and no one else tells them how.

Fix. The Product Owner proposes value and discusses items. The Developers choose how much and who does what. A Scrum Master can point this out.

3. Overcommitting

Symptom. The Sprint Backlog is full to the last hour. Carry-over is routine.

Why it matters. The Guide ties the Developers' confidence to their knowledge of past performance, upcoming capacity and the Definition of Done. Ignoring any of the three makes the forecast optimistic.

Fix. Plan to a margin. Count real capacity, including events and absences, and keep a stretch item that can be dropped without harming the goal. See capacity and commitment.

4. Items that are not ready

Symptom. The team spends the meeting discovering what a story means. Questions remain at the end of day one.

Why it matters. The Guide says items that can be Done within one Sprint are deemed ready for selection, and they usually reach that state through refinement. The Scrum Team may refine items during Sprint Planning, but that should be the exception.

Fix. Make refinement a regular activity during the Sprint. The next Sprint's top items should have been discussed before the meeting. See how much refinement is enough.

5. The plan stops at "what"

Symptom. The meeting ends after items are chosen. Nobody has talked about how.

Why it matters. Topic three of the Guide is how the chosen work will get done. A Sprint Backlog needs an actionable plan, which is why the Guide describes it as the goal, the items and the plan together.

Fix. For each item, sketch tasks of a day or less, at least for the first days. Visible tasks mean the Daily Scrum has something to inspect.

6. The meeting overruns

Symptom. Planning takes the whole day, regardless of Sprint length. People leave exhausted.

Why it matters. The Guide gives a maximum of eight hours for a one-month Sprint and says shorter Sprints usually mean shorter events. The Scrum Master is accountable for events being kept within the timebox.

Fix. Check how much unrefined work enters the meeting and how much detail is being planned. Time-box each topic. Plan the first few days in detail, and leave the later ones for the Daily Scrum.

7. Absent voices

Symptom. A Developer or the Product Owner is missing, and decisions are taken without them.

Why it matters. The Guide describes the plan as created by the collaborative work of the entire Scrum Team.

Fix. Schedule the event so that everyone can attend. If someone must miss it, the plan should be explained to them and checked.

8. Treating the forecast as a contract

Symptom. The team is blamed for not finishing everything. Scope is defended instead of the goal.

Why it matters. The Guide says that if the work turns out to be different from what was expected, the Developers collaborate with the Product Owner to negotiate the scope of the Sprint Backlog without affecting the Sprint Goal.

Fix. Present the selection as a forecast, and the Sprint Goal as the commitment. Teach stakeholders the difference.

A worked example: two mistakes together

This is an illustrative case. A team plans a two-week Sprint. The Product Owner arrives with a list of nine items and no goal. The Scrum Master asks what the Sprint is for. The Product Owner says "all of these are important", and the Developers, who each have a task list in their heads, pick tasks.

By the end of the meeting there are nine items and twenty-two tasks, and the team has estimated its capacity at the same figure as the last Sprint, although two of the five Developers will be away for three days. It runs three hours over.

In the second week, three items are not finished. A stakeholder asks why the search feature is delayed. Nobody can say whether it was supposed to be in the Sprint, because no goal ranks the items.

A better meeting would begin with a goal, say "customers can book and pay for a first lesson", and select the four items that serve it. Capacity would be counted with the absences. Two of the nine items would wait, and the meeting would end on time, because only the selected items would be discussed in detail. The Review would be about whether customers could book and pay, which is a question stakeholders can answer.

How to find your own pattern

Look back at the last three planning meetings and ask five questions. Was there a goal that the team can still recite? Did the Developers choose the amount? Did we finish within the timebox? Were items ready? How many items carried over? The answers show which of the eight is yours.

How to practise it

Choose one mistake and run the next planning meeting with a small change to address it, such as writing the goal before choosing items. In the simulator you commit to stories against a capacity, so you can see what overcommitting does to the rest of the Sprint.