Update Get-AvailabilityConfig.md

Changes to the cmdlet for updates to free/busy sharing based on Tenant ids

Author: TariqSharif-MSFT

exchange/exchange-ps/exchange/Get-AvailabilityConfig.md

@@ -14,7 +14,9 @@ ms.reviewer:
 ## SYNOPSIS
 This cmdlet is available in on-premises Exchange and in the cloud-based service. Some parameters and settings may be exclusive to one environment or the other.
 
-Use the Get-AvailabilityConfig cmdlet to retrieve the accounts that are trusted in the cross-forest exchange of free/busy information.
+Use the Get-AvailabilityConfig cmdlet to retrieve the accounts that are trusted in the cross-forest exchange of free/busy information. 
+
+For Exchange Online use the Get-AvailabilityConfig cmdlet to retrieve the tenant ids of organizations with whome the free/busy information is being shared with. 
 
 For information about the parameter sets in the Syntax section below, see [Exchange cmdlet syntax](https://learn.microsoft.com/powershell/exchange/exchange-cmdlet-syntax).
 
@@ -27,7 +29,7 @@ Get-AvailabilityConfig [[-Identity] <OrganizationIdParameter>]
 ```
 
 ## DESCRIPTION
-The Get-AvailabilityConfig cmdlet lists the accounts that have permissions to issue proxy availability service requests on an organizational or per-user basis.
+The Get-AvailabilityConfig cmdlet lists the accounts or tenant ids (for Exchange Online) that have permissions to issue proxy availability service requests on an organizational or per-user basis.
 
 You need to be assigned permissions before you can run this cmdlet. Although this topic lists all parameters for the cmdlet, you may not have access to some parameters if they're not included in the permissions assigned to you. To find the permissions required to run any cmdlet or parameter in your organization, see [Find the permissions required to run any Exchange cmdlet](https://learn.microsoft.com/powershell/exchange/find-exchange-cmdlet-permissions).
 
@@ -38,14 +40,14 @@ You need to be assigned permissions before you can run this cmdlet. Although thi
 Get-AvailabilityConfig
 ```
 
-This example retrieves the accounts that are trusted in the cross-forest exchange of free/busy information.
+This example retrieves the accounts that are trusted in the cross-forest exchange of free/busy information. For Exchange Online this examples retrieves the list of tenant ids with whome the Free/Busy information is being shared with. 
 
 ### Example 2
 ```powershell
 Get-AvailabilityConfig -Identity <AvailabilityConfig Value>
 ```
 
-This example retrieves the accounts that are trusted in the cross-forest exchange of free/busy information. This example is scoped to return only the results of the specified Identity parameter.
+This example retrieves the accounts that are trusted in the cross-forest exchange of free/busy information. This example is scoped to return only the results of the specified Identity parameter. For Exchange Online this examples retrieves the list of tenant ids with whome the Free/Busy information is being shared with. 
 
 ## PARAMETERS