[APIM] Backend ID support in emit-token-metric policies

Author: gitName

articles/api-management/azure-openai-emit-token-metric-policy.md

@@ -65,11 +65,11 @@ The `azure-openai-emit-token-metric` policy sends custom metrics to Application
 | name      | A string or policy expression. Name of dimension.      | Yes      |  N/A            |
 | value     | A string or policy expression. Value of dimension. Can only be omitted if `name` matches one of the default dimensions. If so, value is provided as per dimension name. | No        | N/A |
 
-[!INCLUDE [api-management-emit-metric-dimensions](../../includes/api-management-emit-metric-dimensions.md)]
+[!INCLUDE [api-management-emit-metric-dimensions-llm](../../includes/api-management-emit-metric-dimensions-llm.md)]
 
 ## Usage
 
-- [**Policy sections:**](./api-management-howto-policies.md#sections) inbound, outbound
+- [**Policy sections:**](./api-management-howto-policies.md#sections) inbound
 - [**Policy scopes:**](./api-management-howto-policies.md#scopes) global, workspace, product, API, operation
 -  [**Gateways:**](api-management-gateways-overview.md) classic, v2, consumption, self-hosted, workspace
 

articles/api-management/llm-emit-token-metric-policy.md

@@ -67,12 +67,12 @@ The `llm-emit-token-metric` policy sends custom metrics to Application Insights
 | name      | A string or policy expression. Name of dimension.      | Yes      |  N/A            |
 | value     | A string or policy expression. Value of dimension. Can only be omitted if `name` matches one of the default dimensions. If so, value is provided as per dimension name. | No        | N/A |
 
-[!INCLUDE [api-management-emit-metric-dimensions](../../includes/api-management-emit-metric-dimensions.md)]
+[!INCLUDE [api-management-emit-metric-dimensions-llm](../../includes/api-management-emit-metric-dimensions-llm.md)]
 
 
 ## Usage
 
-- [**Policy sections:**](./api-management-howto-policies.md#sections) inbound, outbound
+- [**Policy sections:**](./api-management-howto-policies.md#sections) inbound
 - [**Policy scopes:**](./api-management-howto-policies.md#scopes) global, workspace, product, API, operation
 -  [**Gateways:**](api-management-gateways-overview.md) classic, v2, consumption, self-hosted, workspace
 

includes/api-management-emit-metric-dimensions-llm.md

@@ -0,0 +1,19 @@
+---
+author: dlepow
+ms.service: azure-api-management
+ms.custom:
+  - build-2024
+ms.topic: include
+ms.date: 04/18/2025
+ms.author: danlep
+---
+
+### Default dimension names that may be used without value
+
+* API ID
+* Operation ID
+* Product ID
+* User ID
+* Subscription ID
+* Location
+* Gateway ID