MCM - Update programatically-create-mca-sub for Rahul Singh

Author: bandersmsft

articles/cost-management-billing/manage/programmatically-create-subscription-microsoft-customer-agreement.md

@@ -336,7 +336,7 @@ The following example creates a subscription named *Dev Team subscription* for t
 ### [REST](#tab/rest)
 
 ```json
-PUT  https://management.azure.com/providers/Microsoft.Subscription/aliases/sampleAlias?api-version=2021-10-01
+PUT  https://management.azure.com/providers/Microsoft.Subscription/aliases/{{guid}}?api-version=2021-10-01
 ```
 
 ### Request body