Microsoft project management software used to plan, manage, and communicate a project schedule and other information among workgroup members, project managers, and other stakeholders.
Dear Jason Fenn,
Good day!
I understand that you have been experiencing issues accessing MS Project for the past week, despite having an active Planner 1 trial license associated with your .onmicrosoft.com email address.
To resolve this issue, please follow these steps:
Clear Browser Cache: Sometimes, cached data can cause issues with accessing online services. Clear your browser cache and cookies, then try accessing MS Project again.
How to Manage and Clear Your Cache and Cookies | Edge Learning Center (microsoft.com)
Check License Assignment: Ensure that the Planner 1 trial license is correctly assigned to your .onmicrosoft.com email address. You can do this by logging into the Microsoft 365 admin center and verifying the license assignment under "Users" > "Active Users."
Reassign License: If the license is correctly assigned but the issue persists, try reassigning the license. Remove the Planner 1 trial license from your account, wait for a few minutes, and then reassign it.
Contact Microsoft Support: If the above steps do not resolve the issue, most likely the service is stuck. In this case, please contact Microsoft Support for fixing the issue. Provide them with the error code and details of the issue to help them diagnose and resolve the problem.
Thank you for your continued support and partnership with us.
Best regards,
Gina | Microsoft Community Moderator