diff --git a/specification/cosmos-db/resource-manager/Microsoft.DocumentDB/stable/2019-12-12/cosmos-db.json b/specification/cosmos-db/resource-manager/Microsoft.DocumentDB/stable/2019-12-12/cosmos-db.json
index 018309c5d2ad..75ca3edd2100 100644
--- a/specification/cosmos-db/resource-manager/Microsoft.DocumentDB/stable/2019-12-12/cosmos-db.json
+++ b/specification/cosmos-db/resource-manager/Microsoft.DocumentDB/stable/2019-12-12/cosmos-db.json
@@ -5869,11 +5869,15 @@
     },
     "ThroughputSettingsResource": {
       "type": "object",
-      "description": "Cosmos DB resource throughput object",
+      "description": "Cosmos DB resource throughput object. Either throughput is required or autopilotSettings is required, but not both.",
       "properties": {
         "throughput": {
           "type": "integer",
-          "description": "Value of the Cosmos DB resource throughput"
+          "description": "Value of the Cosmos DB resource throughput. Either throughput is required or autopilotSettings is required, but not both."
+        },
+        "autopilotSettings": {
+          "description": "Cosmos DB resource for Autopilot settings. Either throughput is required or autopilotSettings is required, but not both.",
+          "$ref": "#/definitions/AutopilotSettingsResource"
         },
         "minimumThroughput": {
           "type": "string",
@@ -5885,11 +5889,54 @@
           "description": "The throughput replace is pending",
           "readOnly": true
         }
+      }
+    },
+    "AutopilotSettingsResource": {
+      "type": "object",
+      "description": "Cosmos DB autopilot settings object",
+      "properties": {
+        "maxThroughput": {
+          "type": "integer",
+          "description": "Represents max throughput an autopilot container can operate at."
+        },
+        "autoUpgradePolicy": {
+          "description": "Cosmos DB resource auto-upgrade policy",
+          "$ref": "#/definitions/AutoUpgradePolicyResource"
+        },
+        "targetMaxThroughput": {
+          "type": "integer",
+          "description": "Represents target max throughput an autopilot container should operate at once offer is no longer in pending state.",
+          "readOnly": true
+        }
       },
       "required": [
-        "throughput"
+        "maxThroughput"
       ]
     },
+    "AutoUpgradePolicyResource": {
+      "type": "object",
+      "description": "Cosmos DB resource auto-upgrade policy",
+      "properties": {
+        "throughputPolicy": {
+          "description": "Represents throughput policy which service must adhere to for auto-upgrade",
+          "$ref": "#/definitions/ThroughputPolicyResource"
+        }
+      }
+    },
+    "ThroughputPolicyResource": {
+      "type": "object",
+      "description": "Cosmos DB resource throughput policy",
+      "properties": {
+        "isEnabled": {
+          "type": "boolean",
+          "description": "Determines whether the ThroughputPolicy is active or not"
+        },
+        "incrementPercent": {
+          "type": "integer",
+          "description": "Represents the percentage by which throughput can increase every time throughput policy kicks in."
+        }
+      }
+    },
     "SqlDatabaseResource": {
       "type": "object",
       "description": "Cosmos DB SQL database resource object",
diff --git a/specification/cosmos-db/resource-manager/readme.csharp.md b/specification/cosmos-db/resource-manager/readme.csharp.md
new file mode 100644
index 000000000000..0952b6948046
--- /dev/null
+++ b/specification/cosmos-db/resource-manager/readme.csharp.md
@@ -0,0 +1,18 @@
+## C#
+
+These settings apply only when `--csharp` is specified on the command line.
+Please also specify `--csharp-sdks-folder=<path to "SDKs" directory of your azure-sdk-for-net clone>`.
+
+``` yaml $(csharp)
+csharp:
+  azure-arm: true
+  license-header: MICROSOFT_MIT_NO_VERSION
+  namespace: Microsoft.Azure.Management.CosmosDB
+  output-folder: $(csharp-sdks-folder)/cosmosdb/Microsoft.Azure.Management.CosmosDB/src/Generated
+  clear-output-folder: true
+```
+
+``` yaml $(csharp) && !$(multiapi) && !$(csharp-profile)
+namespace: Microsoft.Azure.Management.CosmosDB
+output-folder: $(csharp-sdks-folder)/cosmosdb/Microsoft.Azure.Management.CosmosDB/src/Generated
+```
\ No newline at end of file
diff --git a/specification/cosmos-db/resource-manager/readme.md b/specification/cosmos-db/resource-manager/readme.md
index c6b3020e2a6b..dc2d5714759e 100644
--- a/specification/cosmos-db/resource-manager/readme.md
+++ b/specification/cosmos-db/resource-manager/readme.md
@@ -182,6 +182,7 @@ This is not used by Autorest itself.
 
 ``` yaml $(swagger-to-sdk)
 swagger-to-sdk:
+  - repo: azure-sdk-for-net
   - repo: azure-sdk-for-python
   - repo: azure-sdk-for-java
   - repo: azure-sdk-for-go