How to add a task description or note to an existing task
Sometimes a task needs just a little more context than what you can fit into a task name. That's where task descriptions come in handy.
How to Use the Notes field in Task to add a description (Step by Step)
1. Go to the preferred list. For reference, let's select the Inbox list.
2. Select the task to which you want to add a description.
3. Go to Add Notes and add the required description.