Altus for Project
Microsoft Project was released in 1984 and has since then has evolved into a powerful tool for planning, executing, and tracking projects of varying sizes and complexities. Over the years, Microsoft Project has maintained its relevance as an indispensable tool for project managers seeking advanced, high maturity scheduling capabilities. Altus recognises the high levels of scheduling expertise that many of our customers already have with this application and wish to empower them to use the right tool for the job - which in many cases continues to be Microsoft Project.
What is it?
Altus for Project is an Add-in for Microsoft Project that exposes additional functionality directly inside Microsoft Project that allows you to manage your tasks in Altus using Microsoft Project.
Technical information
The Altus for Project functionality is delivered by installing a component on the end-user's computer.
| Attribute | Description |
|---|---|
| Download link | Altus for Project - Click-once installer |
| Platforms Supported | Windows 11, Windows 10 - Latest version |
| Local administrative rights required for installation | Yes |
| Microsoft Project Versions Supported | Microsoft Project (64-bit) - see below |
| Project version | Support Status | Lifecycle End Date |
|---|---|---|
| Project P3 Desktop Client | Supported | ♾️ |
| Project Online Desktop Client | Supported | 30 Sept 2026 |
| Project 2021 Professional | Supported | 13 Oct 2026 |
| Project 2021 Standard | Supported* | 13 Oct 2026 |
| Project 2021 (LTSC) Professional | Possible | 13 Oct 2026 |
| Project 2021 (LTSC) Standard | Possible* | 13 Oct 2026 |
| Project 2019 Professional | Supported | 14 Oct 2025 |
| Project 2019 Standard | Supported* | 14 Oct 2025 |
| Project 2016 Professional | Possible | 14 Oct 2025 |
| Project 2016 Standard | Possible* | 14 Oct 2025 |
| Project 2013 Professional | Unsupported | 11 Apr 2023 |
| Project 2013 Standard | Unsupported | 11 Apr 2023 |
Warning
* = Versions of Microsoft Project other than the latest Project P3 Desktop Client may work but with limited functionality. For example: The Task Board and Sprint values will only publish if the user has a Professional or Online (P3/P5) license.
Note
If the support status is "Possible" then the product is untested and may have issues or not work at all. We will update when more information is available.
Altus for Project Limits
| Item | Limit |
|---|---|
| Maximum MPP file size | 50 MB |
| Tasks per project | 300 |
| Minimum Altus version | 2023.10.12.2 |
Security

Communications:
- The Altus for Project Add-in authenticates and connects to the Microsoft Power Platform Environment (Dataverse) to synchronise Project related information with Project Desktop. This is done via Entra ID authentication interactively and securely using with the end-user's credentials to the target environment.
- All communications are encrypted in transit authenticated by Entra ID and authorised by the user's set security role in the Dataverse.
Locally persisted information:
- MPP files on local drives
- Altus.ConnectionStrings.json in the user profile that stores the details for recently connected environments (no usernames/passwords)
Telemetry:
- Anonymous feature information is collected via Azure Application Insights Telemetry. No customer project information or personally identifiable information is collected.
Binaries:
- The Click-once executable is signed with a code signing certificate to ensure that the software came from Altus and has not been altered in-transit.
- During the deployment provides .NET assemblies are pre-compiled (NGEN) for the local platform of the computer. The resulting binary incorporates Address Space Layout Randomisation (ASLR) and Data Execution Protection (DEP) technologies.
- An auto-update mechanism provides updates / patches to end users.
Architecture

| Attribute | Description |
|---|---|
| Encryption | Yes, data encrypted in transit |
| Authentication | Microsoft Entra ID single sign-on |