Hello Lexi, I am Henry and I want to share my insight about your issue.
Based on the image, you are attempting to log into Ivanti Service Manager. The "Access denied" error you are seeing is an application-specific message from Ivanti, indicating that your account does not currently have the necessary permissions to access the application.
While your organization may use your Microsoft account (Azure Active Directory) to sign in, the access rights and permissions within the Ivanti application are managed by your company's Ivanti administrators.
This issue is not related to your computer being blocked by Microsoft. To resolve this, you will need to contact your internal IT help desk or the administrator for your Ivanti Service Manager. They will be able to review your account and grant you the appropriate permissions to access Bluebeam through their system.
Microsoft does not have any block in place that would prevent you from accessing this third-party application.
I hope this information and these keywords help point you in the right direction for your research. Let me know how it goes, and if this answer helps, feel free to hit “Accept Answer” so others can benefit too