Flag Output marks tasks and messages so your team can spot what needs attention
Flag Output is a feature in Google's project management and collaboration tools (primarily Google Tasks and integrated task features in Gmail and Google Chat) that lets you mark items with a flag icon. When you flag something, it gets highlighted visually and can be sorted or filtered separately, making it easier to find work that's urgent, blocked, or waiting on someone else.
The flag itself does nothing automatically — it's a manual marker you add. But because flagged items stand out in your interface and can be grouped together, they become a quick way to separate "I need to do this soon" from everything else in your inbox or task list.
Key Takeaways
- Flag Output adds a visual marker to tasks, emails, or messages so flagged items appear in a separate view or stand out in your list.
- Flagged items do not trigger notifications or reminders on their own — the flag is only a visual signal you create manually.
- You can filter or sort by flag status in most Google tools, letting you see only flagged work without scrolling past unmarked items.
- The flag persists until you remove it, so it works best for items that stay relevant for days or weeks, not for one-time urgent tasks.
How to flag items in Google Tasks and Gmail
In Google Tasks, open a task and look for the flag icon (usually a small outline of a flag) in the task details. Click it to add the flag; the icon fills in to show the task is flagged. In Gmail, you can flag individual emails by clicking the flag icon next to the sender's name or in the email preview. The flag appears in the message list so you can spot it at a glance.
In Google Chat, flagging works similarly — you can flag messages by hovering over them and selecting the flag option from the menu. Once flagged, the message stays marked until you remove the flag manually. The flag does not move the message to a special folder; it just marks it in place.
Why teams use flags instead of other methods
Flags are lighter-weight than creating a new task or moving something to a folder. If you receive an email that needs a response but you're in the middle of something else, flagging it takes one click. You don't have to open a separate app, create a duplicate record, or remember to check a specific folder later.
Flags also work across Google's tools. You can flag an email in Gmail, then see that same flag status reflected if the email is linked to a task in Google Tasks. This consistency means your team doesn't have to learn multiple systems for marking priority work.
The difference between flags and labels or folders
A label in Gmail is a category you assign to organize messages by topic or project — you might label all emails from a client with "Acme Corp" so you can find them later. A flag is a status marker that says "this needs my attention now." One email can have many labels but usually only one flag status.
Folders and labels are permanent organizational structures; flags are temporary markers. You might label an email "Invoices" and keep that label forever, but you flag it only while it's waiting for action. Once you've paid the invoice, you remove the flag. This makes flags better for workflow — they change as work moves forward — while labels stay the same.
Setting up a workflow with flags
Many teams use flags to mark items in one of a few states: waiting for feedback, needs review, or blocked. When you receive a task that depends on someone else's input, flag it. When a colleague sends you a document to review, flag it. When a project is stalled until a decision comes down, flag it. At the start of each day or each week, you review your flagged items to see what's actually blocking progress.
The key is consistency — your team should agree on what a flag means. If one person uses flags for "urgent" and another uses them for "someday," the system breaks down. A quick conversation about what gets flagged (and when you remove the flag) prevents confusion.
Limitations of Flag Output
Flags are visible only to you unless you share the task or email with someone else. If you flag an email in your inbox, your colleague won't see that flag in their copy of the same email. This makes flags useful for personal workflow but less useful for team-wide prioritization.
Flags also don't trigger reminders or notifications. If you flag something and then forget about it, the flag sits there silently. Some teams combine flags with due dates or reminders in Google Tasks to make sure flagged work actually gets done. You can set a due date on a task, flag it for visibility, and add a reminder so you get a notification at a specific time.
Frequently Asked Questions
Can I flag a task in Google Tasks and have my team see it?
Only if you share the task with them. When you share a task list with a colleague, they see your flags on those tasks. If the task is private to you, your flag is invisible to others. You can share a task list with specific people or make it visible to your whole team through your Google Workspace settings.
What happens if I flag something and then delete it?
The item is deleted regardless of the flag. The flag doesn't protect an item from being deleted — it's just a marker. If you want to keep something safe, use a label or move it to a specific folder instead of relying on a flag.
Can I sort my inbox or task list to show only flagged items?
Yes. In Gmail, you can search for "is:flagged" to see only flagged emails. In Google Tasks, you can filter the view to show flagged tasks. This is useful when you want to focus on what's marked as needing attention without scrolling through everything else.
Do flagged items get a different color or icon?
Yes, flagged items show a filled-in flag icon (usually red or colored) instead of an empty outline. The exact appearance depends on which Google tool you're using and your device, but the filled flag is always the visual signal that something is flagged.
Can I set a flag to expire automatically?
No. Flags stay in place until you manually remove them. If you want a task to be marked as urgent only until a certain date, pair the flag with a due date or reminder in Google Tasks instead.