Within Teamwork.com, you can use tags to quickly
    categorize and organize your project items,
    such as tasks, milestones, files, and time
    logs. 
In your Teamwork.com site, you can add tags to: 
- Tasks 
- Milestones 
- Messages 
- Files 
- Time logs 
- Notebooks 
- Links 
- Projects 
For some project items, the tag icon
    will always be visible. On other items such as
    tasks, hover over the item to reveal the tag
    icon.

In Table view, tags can
    be managed in the dedicated Tags column. Hover
                    over the tag field and click
                    the + icon
                    to open the tag picker
                    dropdown. Once you select a
                    tag in the list, it will be
                    applied to the task. 

When you click the tag icon, you
    will be able to select one of the existing
    tags from the list. If project-specific tags
    already exist on the project, these will be
    displayed at the top of the list. You can use
    the Show/Hide option to display
    the available site-wide tags.

You can also search for an existing tag by
    typing in the Add tag field at the top
    of the tags list. If the tag name you search
    for
    doesn't return any results, you will see an
    option to Create new
        tag. 
Depending on your subscription, you
    may also see an option to set
    the tag as project specific.

Notes
- There is a 50-character limit
            per tag.
- A maximum of 20 tags can be applied to individual tasks. All other items (ex. projects, milestones, messages) can have up to 8 tags.
- If a task that is set to repeat has
            tags applied, those tags will carry
            over to future repeats once
            created.
- Collaborators
            cannot add tags to projects or project
            items.
- The ability to create new tags is
            dependent on your site
                settings.
✔ 
    Project specific tags are available
    on Grow and Scale
    subscriptions 1 
Shortcodes 
If you are creating a task, you can also add
    the shortcode 
#tagname to the
    task name to tag the task quickly. If you are logging time on the desktop timer
    or using the log time button on
    the time section of a project, you can also
    use the shortcode 
#tagname in the
    description to add the tag. Removing a tag from an
        item
To remove a tag currently applied to
    a project item, hover over the tag and click
    the x to the right of the tag name.

1. Also
        available on legacy
        subscriptions: Premium,
        Enterprise.
                