Post18 November 20253 min read
Project Online Is Retiring: Why It Matters, and How to Migrate Successfully
With Project Online retiring, organisations are reassessing how they manage projects, portfolios, and resources. Now is the time to move to modern, Microsoft 365 aligned tools that offer better visibility, governance, and integration. This article outlines what the retirement means, the risks of delaying action, and some of leading alternatives organisations are choosing Planner Premium and OnePlan, a multi-award-winning enterprise PPM solution. It also includes practical guidance to help you plan a smooth and low-risk transition.
Microsoft Project Online retires September 30, 2026. For organisations still relying on this legacy platform, the countdown is officially on. This isn’t just a product retirement — it’s a strategic shift toward modern, integrated, AI-enabled project management across Microsoft 365.
This guide covers what is happening, key dates, recommended alternatives, Exco Partners migration approach and real-worl learnings from case studies.
Why Project Online Is Retiring
Project Online’s SharePoint-based architecture limits Microsoft’s ability to deliver modern capabilities like:
- AI-driven insights and forecasting
- Advanced reporting and analytics
- Automation and workflow orchestration
- Seamless integration with Microsoft 365
Microsoft now focuses on:
- Planner Premium – Task and project management with Gantt views, dependencies, and roadmap-level visibility
- Microsoft 365 Copilot – AI-driven planning, risk insights, and reporting
- Power Platform – Low-code automation, workflows, and advanced analytics
Key Dates to Remember
| Date | Milestone |
|---|---|
| April 2026 | No new Project Online tenants provisioned |
| September 30, 2026 | Project Online becomes inaccessible; all data permanently lost |
Without migration, organisations risk losing years of project history.
Risks of Delaying Migration
- Data Loss - Historic projects, schedules, timesheets, and reporting disappear
- Broken Workflows - SharePoint 2013 workflows retire April 2026
- Higher Costs - Complexity increases 15–20% each quarter as deadlines approach
- Operational Disruption - Rushed migrations lead to avoidable downtime
What to Look for in a Replacement Solution
Prioritise a platform that offers:
- Deep Microsoft 365 integration
- Portfolio, program, and resource management capabilities
- AI-driven insights and reporting
- Modern UX to drive adoption
- Strong governance and configuration flexibility
Organisations often choose Planner Premium for task and project management, or OnePlan, a multi-award-winning enterprise solution offering comprehensive project, portfolio, and resource management capabilities.
Why OnePlan for Migration
OnePlan provides:
- Full capability coverage - Everything Project Online does, plus modern PPM features
- Portfolio, resource, and financial governance
- Native Microsoft 365 integration - Teams, Power BI, Azure DevOps, Power Platform
- Proven migration tools and frameworks
- AI and automation - Future-ready project and portfolio management
Why Exco Partners
Selecting the right implementation partner is as critical as the platform itself. Exco Partners delivers:
- Project Online → OnePlan migration specialists - Zero data loss across councils, government, and enterprise
- Microsoft-aligned and OnePlan certified - Best-practice configuration, governance, and integration
- Strong integration and data expertise - Smooth transition of core systems like financials, Power BI, and resource management
- Adoption-first delivery - Human-centred change, communications, and training
- Predictable, proven methodology - Structured seven-phase migration framework reduces risk and accelerates outcomes
Migration Overview
A high-level view of a structured migration approach:
| Stage | Description |
|---|---|
| Assess Your Current State | Review users, projects, workflows, integrations, reports, and overall data quality. |
| Engage Stakeholders | Identify and align executive sponsors, PMO, IT, and business leads. Establish governance. |
| Define Future-State | Map business requirements to the target solution (e.g., OnePlan). Confirm integration needs. |
| Build the Migration Plan | Establish the timeline, migration approach, testing plan and rollback strategy. |
| Pilot & Validate | Run a pilot migration, validate data, test workflows and reporting, and conduct UAT. |
| Train Users | Deliver training, provide quick-start guides, and set up support channels. |
| Optimise | Monitor adoption, refine governance, and take advantage of new features and AI insights. |
Following a structured approach reduces risk, avoids operational disruption, and ensures a smoother transition.
Case Study Learnings
City of Stonnington
- Phased OnePlan implementation improved governance, financial control, and visibility across a $50M capital program
Lesson: Early engagement and tailored workflows accelerate adoption
EBOS Group
- Enterprise-wide visibility and better resource allocation via agile, iterative OnePlan rollout
Lesson: Sprint-based delivery and regular showcases ensure alignment and faster decision-making
Act Now: Don’t Wait Until It’s Too Late
Migration demand will peak as the retirement deadline approaches. Early engagement ensures:
- Lower risk
- Avoided cost escalation
- Smooth, predictable transition
Next Step: Book a free migration readiness assessment to ensure your organisation is prepared.
Find out more: Project Online Is Retiring - Future-Proof Your PMO
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