Cumulative Flow Diagramas (CFD) in Azure DevOps for Tasks

Is there any possibility to get a CFD diagram in Azure DevOps for tasks?

If you enter in backlog -> Analytics I can get this diagram but for the entire backlog for User stories or backlog item, but I want to do the same for tasks (We divide the User stories in tasks and we want to know how many team is each task in each column (this columns are in the sprints view, and aren't the same for the backlog view).

Solution

From a Flow Metrics perspective it doesn't make a lot of sense to track tasks, as these are not value-carrying-items. Generally you apply CFD, Cycle time etc on the level of items that deliver value to an end-user or customer.

The CFD widget in Azure DevOps is therefore tied to a Backlog level that's higher than the Sprint level.

You can create a similarly looking CFD from a work item query on your team dashboard:

Create a work item query for all task work items in the sprint
Save it as a shared query
Go to the dashboard and add a "Workitem Chart" widget
Configure it with the query you created
Pick Stacked Area
Group by State

That will result in a simple CFD.