How to Set Task Dependencies in Asana (2026 Guide)
Dependencies tell Asana the order work has to happen in: this task is waiting on that one, or it’s blocking the next. When a blocking task finishes, the person on the next task gets a heads-up. Here’s how to set them and read them on a Timeline.
Dependencies are available on Asana’s Starter plan and above (not on the free Personal plan).
1. Mark a Task as Waiting On or Blocking
From the task pane
- Open the task that has to wait.
- Click the more options menu (the ··· in the task’s top-right).
- Choose Add dependency.
- Search for and select the task it’s waiting on.
The dependency shows at the top of the task (“Waiting on: …”). The other task automatically gains the matching “Blocking” relationship — you only set it once.
From the task’s dependency field
In some layouts you’ll see a Dependencies field directly in the task detail pane. Click it, choose Waiting on or Blocking, and pick the related task.
2. Draw Dependencies on the Timeline
The fastest way to sequence a whole plan is visually, on Timeline view (Starter+):
- Open the project and switch to Timeline.
- Make sure tasks have start and due dates so they appear as bars.
- Hover over the edge of a task bar until a small connector dot appears.
- Drag from that dot to the next task’s bar.
A line now connects them, showing the sequence. Drag a bar and Asana flags any dependency it would push out of order.
3. Get Notified When You’re Unblocked
The point of dependencies is the handoff:
- When the blocking task is marked complete, Asana sends the dependent task’s assignee a notification that it’s ready to start.
- Dependent tasks display a small indicator so you can see at a glance whether their blocker is done.
This replaces the “is that finished yet?” Slack message with an automatic signal.
4. Read Dependencies at a Glance
- Task pane: “Waiting on” and “Blocking” labels at the top.
- Timeline: connector lines between bars.
- Overdue blockers: if a blocking task slips past its due date, dependent tasks are visibly at risk on the Timeline.
5. Troubleshooting
I don’t see the “Add dependency” option
Dependencies require a paid plan (Starter and up). On the free Personal plan the option won’t appear.
I can’t drag a connector on the Timeline
Both tasks need start and due dates to show as bars. A task with only a due date appears as a point and is harder to link — add a start date first.
Completing the blocker didn’t notify anyone
The dependent task must have an assignee to notify. Unassigned dependent tasks have no one to ping.
Dependencies didn’t move dates automatically
By default, Asana warns about conflicts but doesn’t reschedule for you. If you want shifting one task to push its dependents, look at dynamic/auto-shift dependencies (available on higher-tier plans) and enable date-shifting for the project.
A dependency points the wrong way
“Waiting on” and “Blocking” are mirror images. If the arrow looks backward, you set the relationship on the wrong task — remove it and add it from the task that should wait.
More on Asana: How to create a Gantt chart in Asana · How to add milestones in Asana · How to use subtasks in Asana · How to set a recurring task in Asana. To keep dependent work moving without the manual nudges, see Carly’s Asana integration.
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