diff --git a/schemas/2019-05-01-preview/Microsoft.AppPlatform.json b/schemas/2019-05-01-preview/Microsoft.AppPlatform.json
index a736963e1a..95f79ef7f8 100644
--- a/schemas/2019-05-01-preview/Microsoft.AppPlatform.json
+++ b/schemas/2019-05-01-preview/Microsoft.AppPlatform.json
@@ -906,10 +906,12 @@
         },
         "name": {
           "type": "string",
+          "default": "S0",
           "description": "Name of the Sku"
         },
         "tier": {
           "type": "string",
+          "default": "Standard",
           "description": "Tier of the Sku"
         }
       },
@@ -1226,4 +1228,4 @@
       "description": "Source information for a deployment"
     }
   }
-}
\ No newline at end of file
+}
diff --git a/schemas/2020-07-01/Microsoft.AppPlatform.json b/schemas/2020-07-01/Microsoft.AppPlatform.json
index 9eeb103575..1e4e486269 100644
--- a/schemas/2020-07-01/Microsoft.AppPlatform.json
+++ b/schemas/2020-07-01/Microsoft.AppPlatform.json
@@ -1375,4 +1375,4 @@
       "description": "Source information for a deployment"
     }
   }
-}
\ No newline at end of file
+}
diff --git a/schemas/2020-11-01-preview/Microsoft.AppPlatform.json b/schemas/2020-11-01-preview/Microsoft.AppPlatform.json
index c98f8bcbba..711846682e 100644
--- a/schemas/2020-11-01-preview/Microsoft.AppPlatform.json
+++ b/schemas/2020-11-01-preview/Microsoft.AppPlatform.json
@@ -1034,10 +1034,12 @@
         },
         "name": {
           "type": "string",
+          "default": "S0",
           "description": "Name of the Sku"
         },
         "tier": {
           "type": "string",
+          "default": "Standard",
           "description": "Tier of the Sku"
         }
       },
@@ -1404,4 +1406,4 @@
       "description": "Source information for a deployment"
     }
   }
-}
\ No newline at end of file
+}