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A task can still exist in your database even when you cannot see it on the calendar. Check its date, the date property your calendar uses and the view’s filters before creating another copy.
Which calendar are you using?
A database calendar view inside Notion displays records from a database. Notion Calendar is a separate application that can connect to Notion workspaces and database views. Start with the section that matches your screen; their settings are not interchangeable.
1. Find the record first
Open an unfiltered table view of the same source database. Search for the exact task title. If it is there, keep that record and investigate its visibility. If it is not there, check that you opened the intended source database before concluding the task was deleted.
For a safe practice setup, use Name (Title), Planned Date (Date), Due Date (Date) and Done (Checkbox). Use single dates without times. Keep an unfiltered All tasks table alongside your calendar.
2. Check the calendar’s date property
Inside a database calendar view, open the view settings, choose Layout, then Show calendar by. Select the Date property that represents what you want to see. Planned Date is useful for scheduled work; Due Date is useful for deadlines.
Notion documents this control in its calendar-view help page. If the selected property is empty on a task, that task has no day assigned in this calendar. A date in a different property does not substitute for it.
3. Check the displayed period and filters
Navigate to the task’s selected date using the calendar’s date controls. A task planned for next month will not appear among this month’s days. Then inspect view filters: for example, Done unchecked intentionally hides completed tasks.
In a practice view, temporarily remove its filters to isolate the date issue. Record the original rules first, and restore them afterwards. If removing filters reveals the task, review those rules rather than changing the task’s date to force it into view.
Six tasks, two different date stories
This fictional example uses an October 2026 calendar configured to show Planned Date, with Done unchecked. It illustrates expected visibility, not an executed Notion screenshot.
| Task | Planned Date | Due Date | Done |
|---|---|---|---|
| Draft proposal | 7 Oct | 9 Oct | Unchecked |
| Collect client documents | No date | 8 Oct | Unchecked |
| Review project brief | 8 Oct | 10 Oct | Checked |
| Plan next launch | 3 Nov | 6 Nov | Unchecked |
| Send feedback summary | 9 Oct | No date | Unchecked |
| Prepare client call | 12 Oct | 12 Oct | Unchecked |
Which three tasks appear in October?
Draft proposal on 7 October, Send feedback summary on 9 October and Prepare client call on 12 October. Client documents has no Planned Date, the brief is completed and the launch is planned for November.
Calendar uses Planned Date; Done is unchecked.
Draft proposal
Send feedback summary
Prepare client call
Illustrative result cards, not a Notion screenshot. Collect client docs has no Planned Date; Review project brief is done; Plan next launch is scheduled in November.
4. Make one controlled change
Give Collect client documents a Planned Date of 8 October. It should now have a place in the October calendar without changing its deadline. Next, tick Done on Draft proposal: it should leave the filtered view but remain in All tasks. Restore both values after the exercise.
Create an Unscheduled table filtered to Planned Date empty AND Done unchecked. This gives undated work a visible home while you decide when to do it. Our weekly planner guide uses this same distinction between planned work and deadlines.
If you mean the separate Notion Calendar app
Check that the intended Notion workspace is connected, the intended database view is added and the calendar is using the intended date property. Connecting one workspace does not connect your other workspaces automatically.
Notion’s Notion Calendar integration documentation explains workspace connections and primary-property settings. Date values derived from Formula, Created time or Last edited time are read-only in that app. That editing limitation is different from a missing-record problem.
Diagnose the underlying record in Notion’s unfiltered table first. Avoid rebuilding the database or reconnecting unrelated accounts just because one view does not show a task.
Keep a small diagnostic trail
| Check | What to record |
|---|---|
| Source | Task exists in All tasks in the intended database |
| Date property | Show calendar by uses Planned Date; inspect that value on the task |
| Period | Navigate to the month containing that selected date |
| Filters | Compare each rule against the task’s actual properties |
A month layout may show neighbouring days at its edges. That does not change the underlying dates. Use the assigned date and selected property when checking the result.
Do not move a task’s date just to force it into the displayed month, and do not create a duplicate before finding the original. If you temporarily change filters, record and restore their rules.
Frequently asked questions
Why is a task missing even though it has a deadline?
The calendar may use another date property. If it shows Planned Date, a populated Due Date does not supply a planned day.
Does a missing calendar task mean it was deleted?
No. Find the record in an unfiltered view of the same source database before investigating its calendar visibility.
Why does a November task not appear on an October date?
Its selected date is in November. Navigate to November and check that the task also passes the view’s filters.
Is a database calendar the same as the Notion Calendar app?
No. This guide covers a calendar view inside a Notion database. The separate Notion Calendar application has its own connection settings.