First of all, to use the task's functionality you must enable this option.
How to activate Tasks
Access Project settings → General
Under Features, turn on Tasks
How to create a task
Once enabled, you must follow the following steps:
Double click on the stop where you want to create one or more tasks
In the side menu that appears, click the "Tasks" icon
Click on the "Create Task" box
The task has already been created. Now click on it and fill in the fields such as task name, barcode and comments.
In addition, you also have the option of uploading the tasks from an Excel file.
Tasks vs. package IDs
Tasks are things the driver does or records at a stop. If you need to track each parcel, use Package traceability instead: it lets you assign package IDs to each stop, and the driver confirms which packages are loaded before starting the route and which are delivered at each stop. Enable it in Project settings → General → Features. More information in Parcel management: full traceability from collection to delivery.