If you have a look at the available workbooks in Azure Sentinel, you should find a Data collection health monitoring workbook under Templates as shown above. It is easy to Save this to your environment (in the lower right after selecting the workbook).
If you View the workbook. You’ll need to select the Subscription and Workspace at the top of the page. Once you have done this you should start seeing the values for your environment as shown above.
If you have a look in the Overview section and then the Is billable field as shown above. That is something that is handy to know as not all services ingested into Azure Sentinel incur a cost.
Pricing can be found here:
https://azure.microsoft.com/en-us/pricing/details/azure-sentinel/
If you scroll down to the bottom of the screen you see the above:
What data can be ingested at no cost with Azure Sentinel?
Azure Activity Logs, Office 365 Audit Logs (all SharePoint activity and Exchange admin activity) and alerts from Microsoft Defender products (Azure Defender, Microsoft 365 Defender, Microsoft Defender for Office 365, Microsoft Defender for Identity, Microsoft Defender for Endpoint), Azure Security Center, Microsoft Cloud App Security, and Azure Information Protection can be ingested at no additional cost into both Azure Sentinel, and Azure Monitor Log Analytics.
Please Note: Azure Active Directory (AAD) audit data is not free and is billed for ingestion into both Azure Sentinel, and Azure Monitor Log Analytics.
and
What other charges should I be aware of when using Azure Sentinel?
Any Azure services that you use in addition to Azure Sentinel are charged per their applicable pricing. For example – Log Analytics, Logic Apps, Machine Learning, etc.
For a good introduction to Sentinel have a look at my previous article:
Another great security add on for Microsoft 365
and an online course I created:
Getting started with Azure Sentinel
Using the Data collection health monitoring workbook now makes it easy to see what you are exactly you are being billed for. All you need to do is just add it to your own workbooks. Here is great video overview:
CIAOPS 