Merge pull request #180057 from kengaderdus/freshness-patch

[B2C] Update a NOTE in billing model.

Author: ttorble

articles/active-directory-b2c/TOC.yml

@@ -596,6 +596,7 @@
     href: app-registrations-training-guide.md
   - name: Billing model
     href: billing.md
+    displayName: pricing model
   - name: Code samples
     href: /samples/browse/?terms=b2c
   - name: Cookie definitions

articles/active-directory-b2c/billing.md

@@ -8,7 +8,7 @@ manager: CelesteDG
 ms.service: active-directory
 ms.topic: reference
 ms.workload: identity
-ms.date: 11/11/2021
+ms.date: 11/16/2021
 ms.author: kengaderdus
 ms.subservice: B2C
 ms.custom: fasttrack-edit
@@ -48,7 +48,7 @@ MAU billing went into effect for Azure AD B2C tenants on **November 1, 2019**. A
 
 Your Azure AD B2C tenant must also be linked to the appropriate Azure pricing tier based on the features you want to use. Premium features require Azure AD B2C [Premium P1 or P2 pricing](https://azure.microsoft.com/pricing/details/active-directory-b2c/). You might need to upgrade your pricing tier as you use new features. For example, for risk-based Conditional Access policies, you’ll need to select the Azure AD B2C Premium P2 pricing tier for your tenant.
 > [!NOTE]
->  Your first 50,000 MAUs per month are free for both Premium P1 and Premium P2 features, but **this free tier doesn’t apply to subscriptions with free trial credits**. To determine the total number of MAUs, we combine MAUs from all your tenants (both Azure AD and Azure AD B2C) that are linked to the same subscription.
+>  Your first 50,000 MAUs per month are free for both Premium P1 and Premium P2 features, but the **free tier doesn’t apply to free trial, credit-based, or sponsorship subscriptions**. Once the free trial period or credits expire for these types of subscriptions, you'll begin to be charged for Azure AD B2C MAUs. To determine the total number of MAUs, we combine MAUs from all your tenants (both Azure AD and Azure AD B2C) that are linked to the same subscription.
 ## Link an Azure AD B2C tenant to a subscription
 
 Usage charges for Azure Active Directory B2C (Azure AD B2C) are billed to an Azure subscription. You need to explicitly link an Azure AD B2C tenant to an Azure subscription by creating an Azure AD B2C *resource* within the target Azure subscription. Several Azure AD B2C resources can be created in a single Azure subscription, along with other Azure resources like virtual machines, Storage accounts, and Logic Apps. You can see all of the resources within a subscription by going to the Azure Active Directory (Azure AD) tenant that the subscription is associated with.