Add files via upload (#23485)

* Add files via upload

Added new images for plan and usage betas

* Add files via upload

Adding a usage notifications email file

* Add files via upload

Adding a notifications email file to the plan and usage folder.

* Update usage_details.md

Adding descriptions for usage notifications and MTD billable usage betas, found on the plan and usage page.

* Quick edits

---------

Co-authored-by: hestonhoffman <[email protected]>

content/en/account_management/plan_and_usage/usage_details.md

@@ -87,11 +87,14 @@ Time selection contains options to view usage graphs at daily, weekly, monthly o
 
 {{< img src="account_management/billing/TimeGranularity.png" alt="Time intervals on usage graphs" style="width:100%; align:left" >}}
 
-The dashed `Committed` line shows commitments per product, without any allowances (such as Custom Metrics or Containers). 
+## Billable on-demand pills and committed lines
 
-{{< img src="account_management/billing/CommittedLine.png" alt="Committed usage line on APM Hosts graph configured with the value 10" style="width:100%; align:left" >}}
+<div class="alert alert-warning">This feature is in beta. To request access and confirm your organization meets the feature criteria, contact your account representative or <a href="https://docs.datadoghq.com/help/">Customer Support</a>.</div>
+
+Billable on-demand pills highlight the portion of billable usage that is on-demand usage. The dashed `Committed` line shows commitments per product, without any allotments (such as Custom Metrics or Containers).
+
+{{< img src="account_management/plan_and_usage/MTD-billable-and-committed-lines.png" alt="Billable on-demand pills and committed usage lines on trends graphs." style="width:100%; align:left" >}}
 
-
 
 ## Top custom metrics
 
@@ -130,6 +133,22 @@ This data can be downloaded as a CSV file.
 
 {{< img src="account_management/billing/usage-details-v3-03.png" alt="Logs Usage by Index" >}}
 
+## First-time usage notifications
+
+<div class="alert alert-warning">This feature is in beta. To request access and confirm your organization meets the feature criteria, contact your account representative or <a href="https://docs.datadoghq.com/help/">Customer Support</a>.</div>
+
+The first-time usage notifications feature sends email notifications when there is first-time billable usage for a new product not included in your current contract. Emails are sent approximately 48 hours after the usage first occurs during a given month.
+
+After enabling the feature, a new **Usage Notifications** tab is added to the parent organization's **Plan and Usage** page. On this tab, there is a list of all products covered by the functionality. Unchecking a box stops notifications for that product for all users within the account. If any first-time usage outside of your most recent active contract is detected, users do not receive a notification for any unchecked products.
+
+{{< img src="account_management/plan_and_usage/usage-notifications.png" alt="First-time usage notifications page with a product list including checked and unchecked items" style="width:100%; align:left" >}}
+
+Any user with _Usage Notifications Read_ or _Write_ permissions receives emails. For most organizations, this means any admins.
+
+If your Datadog account is a multi-organization, parent organization users with permissions receive email notifications of usage in child organizations. These emails indicate which child organization generated the usage, and the product which usage was generated for. Child organization users with this permission receive emails for their organization only.
+
+{{< img src="account_management/plan_and_usage/usage-notifications-email.png" alt="First-time usage notifications email with details on sample first-time usage" style="width:100%; align:left" >}}
+
 ## Troubleshooting
 
 For technical questions, contact [Datadog support][9].