Microsoft Sentinel (previously known as Azure Sentinel) is Microsoft’s cloud-native SIEM and SOAR platform. It helps organisations detect, investigate, and respond to security threats in real-time, all at the scale and flexibility of Microsoft Azure.
Understanding Microsoft Sentinel pricing is so important to manage costs and get the most value from your security investment. This article explains commitment tiers, pre-purchase plans, simplified pricing, and strategies to optimise spend.
How does Microsoft Sentinel pricing work?
Microsoft Sentinel uses commitment tiers, where you agree to ingest a fixed amount of data per day at a discounted rate.
Key points:
- Pay for the full tier every day, even if usage is lower.
- Extra usage above the tier is billed at the same discounted rate.
- No refunds or credits for unused capacity.
- Commitment tiers can be updated every 31 days.
Example:
Scenario 1: Using more than your commitment
- Tier selected: 100 GB/day
- Actual usage: 500 GB/day
- Rate: $4.52/GB
Daily cost: 500 × $4.52 = $2,260
Monthly cost: $67,800
If the 500 GB/day tier had been selected at $2.12/GB, the monthly cost would drop to $31,800 — over 50% savings.
Scenario 2: Using less than your commitment
- Tier selected: 500 GB/day
- Actual usage: 100 GB/day
- Rate: $2.12/GB
Daily cost: 500 × $2.12 = $1,060
Monthly cost: $31,800
Takeaway: Over-committing increases costs even if usage is low.
Pre-purchase plans for predictable costs
Microsoft Sentinel allows organisations to prepay for data ingestion at a fixed, discounted rate.
Benefits:
- Predictable monthly costs
- Avoid fluctuations in daily usage
- Locks in discounted pricing
Pre-purchase differs from Microsoft Azure Consumption Commitment (MACC). MACC discounts come from committing to overall Azure spend, which can then be applied to Sentinel costs for extra savings.
Simplified pricing tiers
Microsoft also offers simplified pricing, which bundles ingestion and analytics into one rate.
Who is this best for? Organisations with consistent usage patterns and straightforward budgeting.
Considerations: This may not suit variable workloads or organisations that want granular cost control.
Recommendations to optimise Microsoft Sentinel spend
- Understand daily data ingestion patterns to choose the right tier.
- Use pre-purchase plans for predictable monthly costs.
- Leverage MACC discounts if you have existing Azure spend commitments.
- Review simplified pricing for consistent workloads.
- Adjust tiers monthly to match actual usage and avoid overpayment.
Microsoft Sentinel is a powerful security platform, but without the right pricing strategy, it can become a significant and unnecessary cost driver.
Keystone Negotiation helps organisations independently assess Azure and Microsoft security costs, benchmark Sentinel pricing, and design commercial strategies that balance security effectiveness with financial control.
FAQ: Microsoft Sentinel pricing and cost optimisation
Q1: What is an Microsoft Sentinel commitment tier?
A commitment tier is a pre-agreed daily data ingestion volume. You pay for the full tier every day, even if your actual usage is lower.
Q2: How do I save money if my usage is variable?
If your usage fluctuates, pay-as-you-go or monthly pre-purchase plans can offer flexibility. Avoid over-committing to a high tier you won’t fully use.
Q3: What is the difference between pre-purchase plans and MACC discounts?
- Pre-purchase: Lock in a discounted daily ingestion rate for Sentinel.
- MACC: Commit to total Azure spend; discounts can be applied to Sentinel costs for additional savings.
Q4: How can simplified pricing help
Simplified pricing bundles ingestion and analytics costs into one predictable rate, making budgeting easier for organisations with stable usage.
Q5: How often can I change my commitment tier?
Microsoft Sentinel tiers can be adjusted once every 31 days to match actual data ingestion.
Q6: What happens if I exceed my commitment tier?
Extra usage is billed at the tier’s discounted rate, so costs are predictable, but over-committing without adjusting tiers can increase expenses.
Q7: How do I optimise costs long-term?
Combine tier selection, pre-purchase plans, MACC discounts, and monthly adjustments to align costs with actual usage while maintaining security coverage.
References
1. Azure Sentinel Billing Overview