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Fix Project Online Blank End Dates for Past Incomplete Tasks
Question details
Users are experiencing an issue where End Date values are missing or blank for incomplete tasks scheduled in the past.
- Product
- Microsoft Project Online
- Device & OS
- not provided
- Scenario
- Viewing the project schedule and checking task details for past incomplete tasks.
- Observed behavior
- End dates for incomplete tasks in the past display as blank, despite correct durations and lack of constraints. Future dates and completed past dates display correctly.
Ensure your browser is up to date and try clearing your browser cache. Verify that the affected tasks do not have hidden constraints or dependencies altering the schedule.
Diagnose Task Details and Escalate to Support
Isolate the issue by verifying task completion status and browser compatibility before reaching out to Microsoft Support.
This behavior is often a specific display glitch in Project Online where the system fails to render past end dates unless the task is marked as complete. Documenting the exact conditions is necessary for a support escalation.
Check if the issue specifically targets incomplete tasks with past end dates. Note whether future tasks and completed tasks display their dates correctly.
Log into Project Online using different web browsers, such as Microsoft Edge and Google Chrome, to rule out browser-specific rendering issues or local cache problems.
Take clear screenshots of the task properties, ensuring you capture the missing end dates, calculated durations, current task status, and the browser version.
Submit the captured screenshots and task details to Microsoft Support or post them in the Project Online community forum to request a backend fix or workaround.
Manage Your Projects Efficiently with WPS Office
While Project Online is a dedicated tool, WPS Office offers a lightweight, free alternative for project management and tracking. Easily create Gantt charts and project schedules using WPS Spreadsheet without worrying about complex platform glitches.
- 1. Download WPS Office: Visit the official WPS website to download and install the free WPS Office suite on your computer.
- 2. Open a Project Template: Launch WPS Spreadsheet, navigate to the template library, and search for 'Project Tracker' or 'Gantt Chart'.
- 3. Manage Your Tasks: Input your project tasks, start dates, and durations. Save your document in .xlsx format to ensure full compatibility with Microsoft Excel users.
Frequently Asked Questions
Why do end dates disappear for past tasks in Project Online?
This is typically a display bug affecting incomplete tasks scheduled in the past. The data usually still exists in the backend, and once the task is marked as 100% complete, the end date typically renders correctly on the screen.
Does browser choice affect how Project Online displays dates?
Sometimes local caching issues or browser-specific rendering bugs can hide data. However, if the blank date issue persists across multiple modern browsers like Edge and Chrome, it is likely a server-side or platform-level glitch.
How do I report display bugs in Project Online?
Gather screenshots of your task details, note the specific conditions (e.g., incomplete past tasks), and submit a support ticket through the Microsoft 365 admin center or share your findings in the Microsoft Tech Community.
