CSP vs Volume Licensing — what is the difference?
Last reviewed by the MSLicenseHub Licensing Desk.
Cloud Solution Provider (CSP) is the modern Microsoft channel where a partner manages your subscription. Billing is monthly or annual, seats can scale up and down each month, and the partner handles support tickets. Best for cloud-first workloads (Microsoft 365, Dynamics 365, Azure) where flexibility matters.
Volume Licensing (Open Value, MPSA, Enterprise Agreement) is the traditional channel for perpetual on-premises licenses — Windows Server, SQL Server, Office LTSC. Three-year commitments are typical, with optional Software Assurance for upgrade rights. Best for perpetual server licensing where you want to own the asset.
Most organizations use both: CSP for the cloud subscriptions and Volume Licensing for the on-prem perpetual licenses.
Apply this to your deployment
- Product and version
- Agreement rights
- Compliance evidence
Apply this concept to the exact product and agreement. A brand name, activation key or seller description alone does not establish use, transfer or renewal rights.
Decision checklist
| Check | What to record |
|---|---|
| Product and version | Record the full name, edition, version and part number in the quote. |
| Scope of use | Identify the user, device or deployment; count only the metric applicable to this product. |
| Evidence and support | Retain the agreement, invoice and support lifecycle date; perpetual licensing does not mean perpetual support. |
Official Microsoft terms and licensing guidance · Product support lifecycle
Practical checklist
- CSP (Cloud Solution Provider) sells monthly or annual subscriptions through a partner who also supports and bills you.
- Volume Licensing (Enterprise Agreement, MPSA, Open Value) suits perpetual licences and large multi-year commitments.
- Under the New Commerce Experience, CSP annual terms are cheaper than monthly but cannot be reduced mid-term.
- Many organisations combine CSP for cloud services with Volume Licensing or CSP perpetual software for servers.
Common mistakes to avoid
- Choosing monthly CSP terms for a stable headcount and overpaying.
- Assuming all Volume Licensing programmes are still open to small businesses.
- Losing track of renewal dates for annual commitments.
Official source: Microsoft documentation. Licensing terms change; confirm against the current Product Terms before buying.
Still unsure?
Talk to a licensing specialist for a written, signed quote tailored to your environment.
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