CSP vs ESD vs Open Value — Which Microsoft Licensing is Right?
A plain-English guide to choosing between Microsoft's three licensing channels for Indian businesses.
Microsoft software in India can be bought through three main channels — ESD (Electronic Software Delivery, one-time perpetual buy), Open Value (volume licensing for 5+ seats, 3-year term with Software Assurance) and CSP (Cloud Solution Provider, monthly / annual subscription billed by us in INR). This guide explains the differences and helps you pick the right one for your business.
Quick comparison table
| Feature | ESD (Perpetual) | Open Value (Volume) | CSP (Subscription) |
|---|---|---|---|
| Payment model | One-time buy | Annual (over 3 years) | Monthly or annual |
| Minimum seats | 1 | 5 | 1 |
| Contract term | Perpetual (own forever) | 3 years | 1 month or 1 year |
| Software Assurance (version upgrades) | Add-on only | Included | Always latest |
| Discount off list | ~30% | ~15 – 20% | ~1.25% (with easier cancellation) |
| Transferable | Yes (with paperwork) | Yes (Open License agreement) | No (SaaS subscription) |
| Best for | Individual seats, small IT | SMBs 5 – 300 seats needing upgrades | Any size, wants flexibility |
When to choose ESD
Choose ESD when you need 1 – 4 seats, have no plans to upgrade software regularly, and want the lowest sticker price. Common ESD buys: single-user Office LTSC, one Windows 11 Pro upgrade, one Visio Professional. Cost-effective for individual designers, engineers or founders who own their tools for years.
When to choose Open Value
Choose Open Value when you have 5+ seats, want to standardise across the team, and want free version upgrades bundled (Software Assurance). Open Value spreads payment over 3 years, so cash flow is easier than a big ESD lump sum. Best for growing SMBs, small architecture / design studios, family offices.
When to choose CSP
Choose CSP when you want monthly / annual billing (no big up-front payment), the ability to add / drop seats every 30 days (monthly plan) or year, and always-current software. CSP is the only way to buy Microsoft 365, Dynamics 365, Teams Phone and Azure. Best for startups, seasonal businesses, and any company where headcount changes often.
Frequently asked questions
What is the cheapest Microsoft licensing channel?＋
Can I mix Open Value and CSP in the same organisation?＋
Which channel is best for Indian startups?＋
Can I convert from Open Value to CSP later?＋
Need a quote or bulk pricing?
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