Merge pull request #221027 from bandersmsft/ghissue101510

MCM - Update for ghissue 101510

Author: prmerger-automator[bot]

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

@@ -4,7 +4,7 @@ titleSuffix: Microsoft Cost Management
 description: This article describes the fields in the usage data files.
 author: bandersmsft
 ms.author: banders
-ms.date: 07/15/2022
+ms.date: 12/09/2022
 ms.topic: conceptual
 ms.service: cost-management-billing
 ms.subservice: cost-management
@@ -31,7 +31,7 @@ The following table describes the important terms used in the latest version of
 | --- | --- | --- |
 | 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. |
-| AdditionalInfo | All | Service-specific metadata. For example, an image type for a virtual machine. |
+| AdditionalInfo¹  | All | Service-specific metadata. For example, an image type for a virtual machine. |
 | BillingAccountId¹ | All | Unique identifier for the root billing account. |
 | BillingAccountName | All | Name of the billing account. |
 | BillingCurrency | All | Currency associated with the billing account. |
@@ -82,7 +82,7 @@ The following table describes the important terms used in the latest version of
 | 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. |
-| ResourceLocation | All | Datacenter location where the resource is running. See `Location`. |
+| ResourceLocation¹  | All | Datacenter location where the resource is running. See `Location`. |
 | ResourceName | EA, pay-as-you-go | Name of the resource. Not all charges come from deployed resources. Charges that don't have a resource type will be shown as null/empty, **Others** , or **Not applicable**. |
 | ResourceType | MCA | Type of resource instance. Not all charges come from deployed resources. Charges that don't have a resource type will be shown as null/empty, **Others** , or **Not applicable**. |
 | ServiceFamily | MCA | Service family that the service belongs to. |
@@ -98,7 +98,9 @@ The following table describes the important terms used in the latest version of
 | UnitPrice | EA, pay-as-you-go | The price per unit for the charge. |
 | CostAllocationRuleName | EA, MCA | Name of the Cost Allocation rule that's applicable to the record. |
 
-¹ Fields used to build a unique ID for a single cost record.
+¹ Fields used to build a unique ID for a single cost record. Every record in your cost details file should be considered unique. 
+
+The cost details file itself doesn’t uniquely identify individual records with an ID. Instead, you can use fields in the file flagged with ¹ to create a unique ID yourself. 
 
 Some fields might differ in casing and spacing between account types. Older versions of pay-as-you-go cost details files have separate sections for the statement and daily cost.