Update Set-ServicePrincipal.md

change ServiceId to ObjectId

Author: joannawang-msft

exchange/exchange-ps/exchange/Set-ServicePrincipal.md

@@ -29,7 +29,7 @@ Set-ServicePrincipal [-Identity] <ServicePrincipalIdParameter>
 ```
 
 ## DESCRIPTION
-You can use this cmdlet to change the DisplayName only. If AppId/ServiceId is wrong, delete the service principal and create a new one.
+You can use this cmdlet to change the DisplayName only. If AppId/ObjectId is wrong, delete the service principal and create a new one.
 
 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).
 
@@ -51,7 +51,7 @@ The Identity parameter specifies the service principal that you want to modify.
 - Distinguished name (DN)
 - GUID
 - AppId
-- ServiceId
+- ObjectId
 
 ```yaml
 Type: ServicePrincipalIdParameter