The first user who creates an Allocatus subscription gets an email that allows him/her to grant Allocatus access to their calendar. This is only possible if your organization allows users to add apps to their Microsoft 365 environment.
This can be configured in Azure Active Directory under Enterprise Applications/Consent and permissions/User Consent Permissions.
Users can add the Allocatus app to their Azure tenant if the option Allow user consent for apps or Allow user consent for apps from verified publishers, for selected permissions (Recommended) is activated. For the second option you need to grant the following permission under the section Permission classification for Microsoft Graph:
Sign in and read user profile
Sign users in
Read and Write mailbox settings
Maintain access to data you have given access to
Have full access to user calendars
If the option Do not allow user consent is activated, you will see the Need admin approval dialog.
Your Microsoft 365 Global Administrator can allow Allocatus for your organization by clicking the following link:
In case the desktop app of Microsoft Project is not installed on your local PC, you can ask your IT department to assign a Microsoft Project Plan 3 in the Microsoft 365 Admin Portal to your user and install the software on your computer (Microsoft Online Desktop Client).
Also, we are happy to provide your with a free trial version of Microsoft Project.
The first user/project manager can add other project managers as resources to the schedule with or without assigning task to them. Once the schedule has been published to Allocatus they get an invitation e-mail. When they confirm it they can connect their Allocatus Project Add-In with Allocatus and can publish task to others.