update for Adam

Author: bandersmsft

articles/cost-management-billing/automate/understand-usage-details-fields.md

@@ -34,6 +34,8 @@ MPA accounts have all MCA terms, in addition to the MPA terms, as described in t
 | AccountName | EA, pay-as-you-go | Display name of the EA enrollment account or pay-as-you-go billing account. |
 | AccountOwnerId¹ | EA, pay-as-you-go | Unique identifier for the EA enrollment account or pay-as-you-go billing account. |
 | AdditionalInfo¹  | All | Service-specific metadata. For example, an image type for a virtual machine. |
+| BenefitId¹ | EA, MCA | Unique identifier for the purchased savings plan instance. |
+| BenefitName | EA, MCA | Unique identifier for the purchased savings plan instance. |
 | BillingAccountId¹ | All | Unique identifier for the root billing account. |
 | BillingAccountName | All | Name of the billing account. |
 | BillingCurrency | All | Currency associated with the billing account. |
@@ -91,7 +93,7 @@ MPA accounts have all MCA terms, in addition to the MPA terms, as described in t
 | Quantity | All | The number of units purchased or consumed. |
 | ResellerName | MPA | The name of the reseller associated with the subscription. |
 | ResellerMpnId | MPA | ID for the reseller associated with the subscription. |
-| ReservationId | EA, MCA | Unique identifier for the purchased reservation instance. |
+| ReservationId¹ | EA, MCA | Unique identifier for the purchased reservation instance. |
 | ReservationName | EA, MCA | Name of the purchased reservation instance. |
 | ResourceGroup | All | Name of the [resource group](../../azure-resource-manager/management/overview.md) the resource is in. Not all charges come from resources deployed to resource groups. Charges that don't have a resource group will be shown as null or empty, **Others**, or **Not applicable**. |
 | ResourceId¹ | All | Unique identifier of the [Azure Resource Manager](/rest/api/resources/resources) resource. |