diff --git a/schemas/2018-05-01/subscriptionDeploymentTemplate.json b/schemas/2018-05-01/subscriptionDeploymentTemplate.json
index 4cc4f2546a..d334f61b6d 100644
--- a/schemas/2018-05-01/subscriptionDeploymentTemplate.json
+++ b/schemas/2018-05-01/subscriptionDeploymentTemplate.json
@@ -49,7 +49,7 @@
     },
     "resources": {
       "description": "Collection of resources to be deployed",
-      "oneOf":[
+      "oneOf": [
         {
           "$ref": "#/definitions/resourcesWithoutSymbolicNames"
         },
@@ -987,14 +987,14 @@
         }
       ]
     },
-    "resourcesWithSymbolicNames":{
+    "resourcesWithSymbolicNames": {
       "type": "object",
       "description": "Resources with symbolic names",
       "additionalProperties": {
         "$ref": "#/definitions/resource"
       }
     },
-    "resourcesWithoutSymbolicNames":{
+    "resourcesWithoutSymbolicNames": {
       "type": "array",
       "description": "Resources without symbolic names",
       "items": {
diff --git a/schemas/2019-08-01/managementGroupDeploymentTemplate.json b/schemas/2019-08-01/managementGroupDeploymentTemplate.json
index f416520a44..58373db30f 100644
--- a/schemas/2019-08-01/managementGroupDeploymentTemplate.json
+++ b/schemas/2019-08-01/managementGroupDeploymentTemplate.json
@@ -49,7 +49,7 @@
     },
     "resources": {
       "description": "Collection of resources to be deployed",
-      "oneOf":[
+      "oneOf": [
         {
           "$ref": "#/definitions/resourcesWithoutSymbolicNames"
         },
@@ -678,14 +678,14 @@
         }
       ]
     },
-    "resourcesWithSymbolicNames":{
+    "resourcesWithSymbolicNames": {
       "type": "object",
       "description": "Resources with symbolic names",
       "additionalProperties": {
         "$ref": "#/definitions/resource"
       }
     },
-    "resourcesWithoutSymbolicNames":{
+    "resourcesWithoutSymbolicNames": {
       "type": "array",
       "description": "Resources without symbolic names",
       "items": {
diff --git a/schemas/2019-08-01/tenantDeploymentTemplate.json b/schemas/2019-08-01/tenantDeploymentTemplate.json
index 87842fe07a..01f39f0845 100644
--- a/schemas/2019-08-01/tenantDeploymentTemplate.json
+++ b/schemas/2019-08-01/tenantDeploymentTemplate.json
@@ -49,7 +49,7 @@
     },
     "resources": {
       "description": "Collection of resources to be deployed",
-      "oneOf":[
+      "oneOf": [
         {
           "$ref": "#/definitions/resourcesWithoutSymbolicNames"
         },
@@ -559,6 +559,9 @@
                 {
                   "$ref": "https://schema.management.azure.com/schemas/2020-05-01/Microsoft.Billing.json#/tenant_resourceDefinitions/billingAccounts_customers_policies"
                 },
+                {
+                  "$ref": "https://schema.management.azure.com/schemas/2020-09-01-preview/Microsoft.Billing.json#/tenant_resourceDefinitions/promotions"
+                },
                 {
                   "$ref": "https://schema.management.azure.com/schemas/2020-11-01-preview/Microsoft.Billing.json#/tenant_resourceDefinitions/promotions"
                 },
@@ -798,14 +801,14 @@
         }
       ]
     },
-    "resourcesWithSymbolicNames":{
+    "resourcesWithSymbolicNames": {
       "type": "object",
       "description": "Resources with symbolic names",
       "additionalProperties": {
         "$ref": "#/definitions/resource"
       }
     },
-    "resourcesWithoutSymbolicNames":{
+    "resourcesWithoutSymbolicNames": {
       "type": "array",
       "description": "Resources without symbolic names",
       "items": {
diff --git a/schemas/2020-09-01-preview/Microsoft.Billing.json b/schemas/2020-09-01-preview/Microsoft.Billing.json
new file mode 100644
index 0000000000..daebc2e177
--- /dev/null
+++ b/schemas/2020-09-01-preview/Microsoft.Billing.json
@@ -0,0 +1,95 @@
+{
+  "id": "https://schema.management.azure.com/schemas/2020-09-01-preview/Microsoft.Billing.json#",
+  "$schema": "http://json-schema.org/draft-04/schema#",
+  "title": "Microsoft.Billing",
+  "description": "Microsoft Billing Resource Types",
+  "resourceDefinitions": {},
+  "tenant_resourceDefinitions": {
+    "promotions": {
+      "type": "object",
+      "properties": {
+        "apiVersion": {
+          "type": "string",
+          "enum": [
+            "2020-09-01-preview"
+          ]
+        },
+        "name": {
+          "type": "string",
+          "description": "Promotion Id"
+        },
+        "properties": {
+          "oneOf": [
+            {
+              "$ref": "#/definitions/PromotionCreateRequestProperties"
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ]
+        },
+        "sku": {
+          "oneOf": [
+            {
+              "$ref": "#/definitions/PromotionCreateSkuNameRequestProperties"
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ]
+        },
+        "type": {
+          "type": "string",
+          "enum": [
+            "Microsoft.Billing/promotions"
+          ]
+        }
+      },
+      "required": [
+        "apiVersion",
+        "name",
+        "properties",
+        "type"
+      ],
+      "description": "Microsoft.Billing/promotions"
+    }
+  },
+  "definitions": {
+    "PromotionCreateRequestProperties": {
+      "type": "object",
+      "properties": {
+        "appliedScopes": {
+          "oneOf": [
+            {
+              "type": "array",
+              "items": {
+                "type": "string"
+              }
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "List of the subscriptions that the benefit will be applied."
+        },
+        "displayName": {
+          "type": "string",
+          "description": "Friendly name for user to easily identified the promotion."
+        },
+        "orderId": {
+          "type": "string",
+          "description": "Unique Id for the promotion order."
+        }
+      }
+    },
+    "PromotionCreateSkuNameRequestProperties": {
+      "type": "object",
+      "properties": {
+        "name": {
+          "type": "string",
+          "description": "SKU Name of the promotion to activate"
+        }
+      }
+    }
+  }
+}
\ No newline at end of file