We are excited to present our latest project: the SharePoint Storage Monster — built as part of the Replit Agent 4 Buildathon. This intelligent solution analyzes Microsoft 365 tenants and uncovers hidden storage waste that costs companies unnecessary money. In this article, we explain why storage optimization matters, what our tool does, and how we are building it during the Buildathon.

The Problem: Hidden Storage Costs in SharePoint

Most organizations using Microsoft 365 are quietly overpaying for storage — sometimes by tens or even hundreds of thousands of dollars annually for data nobody needs anymore. SharePoint Online and OneDrive for Business provide 1 TB of base storage plus 10 GB per licensed user, but once that quota is exceeded, Microsoft charges premium rates of approximately $0.20 per GB per month — roughly $2,400 per TB per year.

The real culprit is not new content — it is hidden bloat:

• Excessive versioning: Default settings retain up to 500 versions per file. A single 50 MB PowerPoint with 200 versions can consume 10 GB of storage
• Duplicates and ROT data: Studies show 20–30% of enterprise files are duplicates, and up to 50% of data in large tenants is stale or unused
• Invisible storage hogs: Recycle bins (first- and second-stage) still count toward quota for 93 days, while lift-and-shift migrations and unchecked Teams/SharePoint sprawl add terabytes of forgotten content

The result? 53% of EMEA organizations exceeded their cloud storage budgets in 2023, and many large enterprises waste millions annually on redundant data alone.

Our Project: The SharePoint Storage Monster

At the Replit Agent 4 Buildathon, we built the SharePoint Storage Monster — a SaaS solution that analyzes Microsoft 365 tenants in minutes and uncovers hidden storage waste.

What Our Scanner Finds

• Stale files — Documents that have not been opened or edited for years
• Duplicates — Identical or similar files scattered across different sites and libraries
• Version history bloat — Files where version history consumes many times the actual file size
• Recycle bin remnants — Deleted files that still consume storage for months
• Teams channel storage — Hidden storage in Microsoft Teams channels that never appears in standard views

The Dashboard

Our tool delivers a clear, actionable dashboard showing exactly what is consuming storage. With a single click, administrators can:

• Identify the biggest storage consumers
• See savings potential in concrete dollar amounts
• Prioritize and execute cleanup actions
• Track progress over time

Agent-to-Agent Communication

A standout feature of our solution is agent-to-agent communication: AI agents can use our service directly, enabling your automation stack to clean up storage autonomously. This means Copilot Studio agents or Power Automate flows can trigger our scanner and automatically act on the results.

Why This Problem Matters

The Market Is Massive

Microsoft 365 is one of the largest collaboration platforms on the planet, with over 430–446 million commercial paid seats. Nearly every enterprise and mid-market organization relies on SharePoint and OneDrive, yet the majority lack automated governance for storage optimization.

The Numbers Speak for Themselves

• Additional SharePoint storage is among the most expensive cloud storage options on the market
• Unmanaged tenants routinely have 30–60% of quota consumed by bloat that can be safely removed
• The global data governance market is projected to grow from $5.38 billion in 2025 to $24.07 billion by 2034 — a CAGR of 20.5%
• Organizations that actively scan and clean up regularly reclaim 40–60% of their storage

Especially Relevant for Swiss Companies

Swiss organizations with their high compliance requirements and the new data protection law (nDSG) benefit doubly: they save on storage costs while simultaneously improving their data governance and compliance posture.

Why Replit and the Buildathon?

The Replit Agent 4 Buildathon is the perfect framework for this project. With Replit, we can:

• Iterate rapidly: The AI-powered development environment enables rapid prototyping
• Build full-stack: Frontend, backend, and database connectivity in one environment
• Deploy instantly: From idea to live product in days instead of weeks
• Collaborate effectively: The team can work on different aspects simultaneously

Our project is live at sharepoint-storage-monster.com and is being developed through the three-week Buildathon from exploration through build to launch.

The Buildathon Timeline

The project goes through three phases:

1. 1Week 1 — Explore (by March 26, 2026): Problem validation, market analysis, initial prototype
2. 2Week 2 — Build (by April 2, 2026): Core functionality, Microsoft Graph API integration, dashboard
3. 3Week 3 — Launch (by April 9, 2026): Polishing, go-to-market, first customers

Conclusion

The SharePoint Storage Monster turns a hidden cost problem into a competitive advantage. Instead of continuing to pay for unused files, organizations can intelligently analyze, clean up, and optimize their storage — automated and continuously.

We believe storage optimization should not be a one-time project but an ongoing, AI-powered process. That is exactly what CNEXT is building at the Replit Agent 4 Buildathon.

Stay tuned for updates on our progress — and if you want to know how much storage is being wasted in your tenant, contact us for a free initial analysis.

SharePoint Storage Monster in the Microsoft 365 Switzerland context

The SharePoint Storage Monster is part of our Microsoft 365 consulting for Swiss enterprises. Reducing SharePoint storage cost is also the foundation for clean Microsoft 365 Copilot tenant readiness – fewer outdated documents mean more relevant Copilot answers and lower FADP-compliance risk.

Learn more at sharepoint-storage-monster.com.