Add more details for the reference function

Author: mumian

articles/azure-resource-manager/bicep/bicep-functions-resource.md

@@ -1,11 +1,9 @@
 ---
 title: Bicep functions - resources
 description: Describes the functions to use in a Bicep file to retrieve values about resources.
-author: mumian
-ms.author: jgao
 ms.topic: conceptual
 ms.custom: devx-track-bicep
-ms.date: 11/03/2023
+ms.date: 2024-02-29
 ---
 
 # Resource functions for Bicep
@@ -498,7 +496,7 @@ Namespace: [az](bicep-functions.md#namespaces-for-functions).
 
 `reference(resourceName or resourceIdentifier, [apiVersion], ['Full'])`
 
-Returns an object representing a resource's runtime state.
+Returns an object representing a resource's runtime state. The output and behavior of the `reference` function highly relies on how each resource provider (RP) implements its PUT and GET responses. 
 
 Namespace: [az](bicep-functions.md#namespaces-for-functions).
 

articles/azure-resource-manager/templates/template-functions-resource.md

@@ -2,7 +2,7 @@
 title: Template functions - resources
 description: Describes the functions to use in an Azure Resource Manager template (ARM template) to retrieve values about resources.
 ms.topic: conceptual
-ms.date: 08/22/2023
+ms.date: 2024-02-29
 ms.custom: devx-track-arm-template
 ---
 
@@ -414,7 +414,7 @@ In the templates with [symbolic names](./resource-declaration.md#use-symbolic-na
 
 `reference(symbolicName or resourceIdentifier, [apiVersion], ['Full'])`
 
-Returns an object representing a resource's runtime state. To return an array of objects representing a resource collections's runtime states, see [references](#references).
+Returns an object representing a resource's runtime state. The output and behavior of the `reference` function highly relies on how each resource provider (RP) implements its PUT and GET responses. To return an array of objects representing a resource collections's runtime states, see [references](#references).
 
 Bicep provide the reference function, but in most cases, the reference function isn't required. It's recommended to use the symbolic name for the resource instead. See [reference](../bicep/bicep-functions-resource.md#reference).