Microsoft volume licensing offers three primary programme structures for business customers: Cloud Solution Provider (CSP), Open Licence, and Enterprise Agreement (EA). Selecting the appropriate programme has significant implications for cost, flexibility, and administrative overhead.
Cloud Solution Provider (CSP)
The CSP programme is Microsoft's primary channel for cloud subscription products, including Microsoft 365, Azure, and Dynamics 365. Licences are subscription-based, typically monthly or annual, and are purchased through a Microsoft Partner. CSP is well-suited for organisations that require subscription flexibility — the ability to add or remove licences as headcount changes — and prefer a monthly billing model.
The CSP model has largely superseded the former Open Licence programme for cloud products. For SMBs and growing organisations, it remains the most accessible and flexible Microsoft licensing route.
Enterprise Agreement (EA)
Enterprise Agreements are designed for organisations with 500 or more licenced users or devices. The EA provides discounted pricing in exchange for a three-year commitment to a defined product set across the entire organisation. True-up provisions allow organisations to report and pay for licence additions on an annual basis.
EAs deliver the lowest per-seat cost for large organisations with stable or growing headcount, but require a three-year commitment and carry annual true-up obligations. The administrative requirements of managing an EA — tracking deployments, preparing true-up submissions, and planning for renewal — are significant and benefit from specialist support.
Selecting the Right Programme
The appropriate programme depends on several factors:
- Organisation size. Under 500 users: CSP or Open Value. Over 500: EA likely delivers better value at scale.
- Headcount stability. Rapidly growing organisations benefit from CSP flexibility. Stable or declining organisations may find EA commitment more manageable.
- Product mix. Primarily cloud products: CSP. Mixed on-premises and cloud estate: EA or combination approach.
- Budget model. Organisations requiring predictable multi-year commitments for budget planning may prefer EA structures.
Licensing programme selection should be reviewed at each renewal point. Organisational growth, product strategy changes, and Microsoft's own programme evolution all affect the optimal choice. Working with a knowledgeable licensing partner provides access to independent programme assessment without commercial bias towards any single agreement structure.