Microsoft Project Online will be retired on September 30, 2026. As part of this process, starting April 1, 2026, the creation of new Project Web App (PWA) sites will be blocked, and existing tenants without projects across their PWA sites will be blocked from accessing Project Online.
What is changing on April 1, 2026
Starting April 1, 2026, Microsoft will implement the following changes for Project Online:
- Creation of new Project Online PWA sites will be blocked. Users will no longer be able to create new Project Online sites (new PWA site collections) in their tenants.
- Existing tenants with no projects will be blocked. Any existing Project Online tenant that contains at least one project across any PWA site will be allowed. All others will be blocked. Non-PWA data will still be accessible.
How this affects your organization
- If your organization creates Project Online sites on demand, you should ensure all required PWA sites are created before April 1, 2026.
- If you have existing PWA sites that were set up but never used, those sites will no longer be accessible after this date. Non-PWA data will still be accessible.
- Existing Project Online tenants that contain at least one or more projects across any PWA site will not be affected by this change.
What you need to do
- Review your existing Project Online PWA sites and identify any unused sites.
- If you intend to keep a PWA site active, ensure that at least one project is created before April 1, 2026.
- Inform Project Online administrators and PMOs in your organization about this change.
- These changes will be applied automatically on April 1, 2026. No admin action is required to enable enforcement.
For more information
Read our blog post, “Microsoft Project Online is retiring: What you need to know,” to learn more about the upcoming retirement.
Updated Mar 12, 2026
Version 2.0
Muralidhar_Koduvande
Microsoft
Microsoft