For years, Microsoftâs Enterprise Agreement (EA) was the default for larger estates. That centre of gravity has shifted. Across the partner ecosystem, Microsoft is emphasising CSP as the hero motion for SMB and midâmarket, aligning to cloudâfirst adoption, AI acceleration and partnerâdelivered value.
In support of this, Microsoft introduced threeâyear subscription terms in CSP (for Microsoft 365 E3/E5, with or without Teams, and Teams Enterprise) from 01/06/2025, helping customers transition from multiâyear EAs without losing price stability.
What this means for you: if youâre under ~2,400 seats, you may find EA renewals less available or less attractive, with CSP (or Microsoft Customer Agreement variants) recommended by many advisors as the modern route for licensing flexibility and operational simplicity.
Operational advantages vs EA:
When EA can still make sense: very large, stable estates with specific onâpremises needs or complex enterprise negotiations may still see value in EA constructs and unified support models.
Switching channels without assessing your current effective licence position can lock in unnecessary cost or create compliance gaps.
A wellârun audit gives you a quantified business case and a clean, compliant starting point in CSP.
Material cost reduction
Rightâsizing licences and deâduplicating overlapping tools typically yields 15â30% savings which can be redeployed into security or AI adoption.
Auditâready compliance
Establish a clean Effective Licence Position (ELP) before you change contract motion; reduce the chance of rework or penalties later.
Futureâproof architecture
Map roles to SKU tiers (E1/Business, E3, E5), validate security addâons, and ensure alignment with Copilot readiness, data governance and identity controls.
Smoother migration
Use Microsoftâs channel transfer capabilities or manual path to preserve tenant identity and services while moving to CSP, with VTG coordinating timing, entitlements and any SKU substitutions.
Area | EA (typical) | CSP (typical) |
---|---|---|
Term & commitment | 3âyear term; annual trueâup; reductions limited | Monthly/annual/3âyear terms; more granular adjustments |
Billing | Annual or upfront; discounts vary by volume | Monthly via partner; clear seatâlevel visibility |
Support | Microsoft Unified Support (separate) | Partnerâdelivered support included per agreement |
Flexibility | Best for stable user counts | Best for dynamic headcount, projects, M&A |
Fit | Very large/complex estates | SMB & midâmarket; cloudâfirst operating model |
Microsoftâs compliance checks are no longer âgotchaââdriven by account teams; they are often triggered by dataâdriven anomaly detection. Entering CSP with a messy entitlement picture invites avoidable risk. A preâmove ELP, with documented assumptions and reconciled proofs of entitlement, shortens any future review dramatically.
Letâs say you have 1,200 users on mixed E3/E5 with addâons. Discovery shows:
After rightâsizing:
Indicative savings: ÂŁ120kâÂŁ220k per annum (â 10â18%) plus soft benefits (simplified stack, fewer vendors). Results vary by environment, but 15â30% is a realistic benchmark seen in many transitions when optimisation is done properly.
Sources: US Signal; Block 64
Sources: Microsoft Learn (CSP transitions & overview)
Microsoftâs EAâCSP transition continues to gather pace. Enter CSP on your terms: optimised, compliant and futureâready.
Book a Microsoft Licensing Audit with VTG to quantify savings and design your CSP plan.