Earlier command and setup reference · Engine 18.6.0rc590 / Reader 8.11.0rc649
What it means
Too few closed objects are available to interpret the time-to-close curve as a population estimate. The message gives the count.
What to do: Treat the curve as descriptive, or include a wider time window or more sources.
Read the available closure count
The warning message gives the number of closed objects supporting the time-to-close curve. Read that count with the analysis window and population definition. A curve can describe the observed sample without supporting a stable claim about a wider population.
Choose a defensible next step
If the question is about those observed work objects, present the curve descriptively and state the limited closure count. If the question is about a broader population, consider a wider time window or additional sources that represent the same intended population.
Check that added sources and periods are comparable before combining them. Do not treat open objects as completed to increase the count, and do not infer a universal minimum from this article: use the count and explanation produced by the scoped Engine reference.