License & Subscription Issues

Fix Project Accelerator Read-Only Access to Tasks in Microsoft 365

Rana Garcia Sep 28, 2026 868 views

Question details

Users with Microsoft 365 E3 licenses are unable to edit tasks in Project Accelerator, experiencing read-only access instead.

How to Fix Project Accelerator Users Having Read-Only Access to Project Tasks

Product: Microsoft Project Accelerator
Device & OS: not provided
Scenario: Trying to edit project tasks assigned in Project for the web using the Project Accelerator app.
Observed behavior: The tasks schedule is locked in a read-only state, preventing users from making edits to basic task fields despite licensing documentation suggesting otherwise.

Before you start

Ensure you have global administrator or billing administrator credentials for your Microsoft 365 tenant, as you will need access to the admin center to verify licensing and contact backend support.

Solution 1Recommended

Verify Licensing Rollout and Assign Project Licenses

Check if the capability allowing E3 users to edit tasks is fully rolled out to your tenant, or if users require a dedicated Project license.

While Microsoft 365 E3 documentation may indicate that basic fields can be edited in Project for the web, this capability is rolled out gradually and may not be enabled for every tenant yet. Without this update, users lacking a specific Project license will default to view-only mode for assigned tasks.

Log in to the Microsoft 365 Admin Center

Navigate to admin.microsoft.com and log in with your administrator credentials.

Review Active User Licenses

Go to 'Users' > 'Active users', select the affected user, and click on the 'Licenses and apps' tab to see their current assignments.

Check Tenant Update Status

Navigate to 'Health' > 'Message center' to look for any recent rollout notifications regarding Project for the web editing capabilities for Microsoft 365 license holders.

Assign Project License (Temporary Workaround)

If the tenant rollout is pending and immediate editing access is required, assign a dedicated Project Plan license to the affected users to bypass the read-only restriction.

Verify Licensing Rollout and Assign Project Licenses

Rollout Delays: Tenant updates are deployed in waves by Microsoft. If your tenant has not received the update, E3 users will remain in read-only mode until the deployment reaches your organization.

Solution 2

Create a Support Request for Backend Investigation

Contact Microsoft 365 technical support to investigate tenant-specific authentication logs and conditional access settings causing the restriction.

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3. Edit and Collaborate: Input your tasks, assign team members, and save the file in .xlsx format to share freely without read-only restrictions.

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Frequently Asked Questions

Can Microsoft 365 E3 users edit tasks in Project for the web?

Yes, Microsoft licensing documentation indicates that basic fields can be edited in Project for the web by E3 users. However, this capability is rolling out gradually and may not be active in all tenants yet, which can cause tasks to appear as read-only.

Why do my users only see a read-only view in Project Accelerator?

This typically happens if the user lacks a dedicated Project Plan license and the recent Microsoft 365 E3 task-editing update hasn't been enabled for your tenant yet. It can also be caused by specific conditional access policies set up by your organization's IT department.

Can public forum moderators fix my Project Accelerator access?

No, public forum moderators do not have access to backend tenant logs or authentication settings. You must contact Microsoft support through the Microsoft 365 admin center for an engineer to investigate your tenant.

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