How to Fix Microsoft Project Bulk Edit Tasks Not Working
Question details
Users are unable to bulk edit tasks or update task information simultaneously in Microsoft Project.

- Product
- Microsoft Project
- Device & OS
- not provided
- Scenario
- Selecting multiple tasks and attempting to apply calendar or task changes via the Information menu.
- Observed behavior
- Using Information > Advanced > Calendar fails to apply updates to the selected tasks, particularly occurring after updating to version 2309.
Verify your current Microsoft Project version and build number, as this bulk-edit problem is a documented issue tied to specific recent software updates.
Monitor Official Workarounds and Report the Issue
Since this is a known bug introduced in recent updates, the best approach is to track official community threads and report your specific build to Microsoft Support.
The bulk-editing failure is recognized as a bug introduced by Microsoft Project version 2309. Because the core functionality is broken at the application level, a manual user-side fix is not available until Microsoft releases a patch.
Open Microsoft Project, navigate to 'File' > 'Account', and note down your exact version and build number (e.g., Version 2309).
Go to the Microsoft TechCommunity Project forum to monitor the specific thread on the 'Bulk Edit Not Working' issue for newly posted workarounds from engineers.
Click 'File' > 'Feedback' in Microsoft Project and submit a report detailing that bulk editing via Information > Advanced > Calendar is unresponsive on your current build.

Manage Your Project Data Smoothly with WPS Office
While waiting for Microsoft Project bugs to be resolved, consider using WPS Office to manage your project tasks and timelines. It offers a lightweight, highly compatible alternative to the Microsoft Office suite with built-in templates for seamless project management.
- 1. Download WPS Office: Install WPS Office Free on your device and open the application.
- 2. Access project templates: Open WPS Spreadsheet, click on 'New', and search for 'Project Management' or 'Gantt Chart' in the template library.
- 3. Track tasks efficiently: Customize the downloaded template to track your tasks, timelines, and calendars without encountering software-specific bulk-edit bugs.

Frequently Asked Questions
Why did bulk edit stop working in Microsoft Project?
This issue was introduced by a recent software update (such as version 2309), which caused a bug in the Information > Advanced tab where changes are no longer applied to multiple selected tasks simultaneously.
Can I bulk edit task calendars in older versions of Project?
Yes, the bulk edit feature for calendars and task information functioned correctly in previous versions before the recent updates disrupted the feature.
Is there a workaround for updating multiple task calendars?
Until Microsoft releases an official patch, you may need to update tasks individually or try utilizing VBA macros to apply calendar changes across multiple selected tasks programmatically.




