diff --git a/daprdocs/content/en/developing-applications/building-blocks/service-invocation/howto-invoke-services-grpc.md b/daprdocs/content/en/developing-applications/building-blocks/service-invocation/howto-invoke-services-grpc.md
index 3c3ffb7ec..21e1aae3e 100644
--- a/daprdocs/content/en/developing-applications/building-blocks/service-invocation/howto-invoke-services-grpc.md
+++ b/daprdocs/content/en/developing-applications/building-blocks/service-invocation/howto-invoke-services-grpc.md
@@ -170,7 +170,7 @@ var call = client.SayHello(new HelloRequest { Name = "Darth Nihilus" }, metadata
 
 {{% codetab %}}
 ```python
-metadata = (('dapr-app-id', 'server'))
+metadata = (('dapr-app-id', 'server'),)
 response = stub.SayHello(request={ name: 'Darth Revan' }, metadata=metadata)
 ```
 {{% /codetab %}}
diff --git a/daprdocs/content/en/reference/components-reference/supported-bindings/_index.md b/daprdocs/content/en/reference/components-reference/supported-bindings/_index.md
index 7dc236582..50b314a16 100644
--- a/daprdocs/content/en/reference/components-reference/supported-bindings/_index.md
+++ b/daprdocs/content/en/reference/components-reference/supported-bindings/_index.md
@@ -50,6 +50,7 @@ Table captions:
 |------|:----------------:|:-----------------:|--------| ------ |----------|
 | [Alibaba Cloud DingTalk]({{< ref alicloud-dingtalk.md >}})           |  ✅ | ✅ | Alpha | v1 | 1.2 |
 | [Alibaba Cloud OSS]({{< ref alicloudoss.md >}})           |    | ✅ | Alpha | v1 | 1.0 |
+| [Alibaba Cloud Tablestore]({{< ref alicloudtablestore.md >}})           |    | ✅ | Alpha | v1 | 1.4 |
 
 ### Amazon Web Services (AWS)
 
diff --git a/daprdocs/content/en/reference/components-reference/supported-bindings/alicloudtablestore.md b/daprdocs/content/en/reference/components-reference/supported-bindings/alicloudtablestore.md
new file mode 100644
index 000000000..754e1195c
--- /dev/null
+++ b/daprdocs/content/en/reference/components-reference/supported-bindings/alicloudtablestore.md
@@ -0,0 +1,143 @@
+---
+type: docs
+title: "Alibaba Cloud Tablestore binding spec"
+linkTitle: "Alibaba Cloud Tablestore"
+description: "Detailed documentation on the Alibaba Tablestore binding component"
+aliases:
+  - "/operations/components/setup-bindings/supported-bindings/alicloudtablestore/"
+---
+
+## Component format
+
+To setup an Alibaba Cloud Tablestore binding create a component of type `bindings.alicloud.tablestore`. See [this guide]({{< ref "howto-bindings.md#1-create-a-binding" >}}) on how to create and apply a secretstore configuration. See this guide on [referencing secrets]({{< ref component-secrets.md >}}) to retrieve and use the secret with Dapr components.
+
+```yaml
+apiVersion: dapr.io/v1alpha1
+kind: Component
+metadata:
+  name: mytablestore
+  namespace: default
+spec:
+  type: bindings.alicloud.tablestore
+  version: v1
+  metadata:
+  - name: endpoint
+    value: "[endpoint]"
+  - name: accessKeyID
+    value: "[key-id]"
+  - name: accessKey
+    value: "[access-key]"
+  - name: instanceName
+    value: "[instance]"
+  - name: tableName
+    value: "[table]"
+  - name: endpoint
+    value: "[endpoint]"
+```
+
+{{% alert title="Warning" color="warning" %}}
+The above example uses secrets as plain strings. It is recommended to use a secret store for the secrets as described [here]({{< ref component-secrets.md >}}).
+{{% /alert %}}
+
+## Spec metadata fields
+
+| Field         | Required | Binding support  | Details | Example |
+|---------------|----------|---------|---------|---------|
+| `endpoint`    | Y | Output | Alicloud Tablestore endpoint. | https://tablestore-cn-hangzhou.aliyuncs.com
+| `accessKeyID` | Y | Output | Access key ID credential. |
+| `accessKey`   | Y | Output | Access key credential. |
+| `instanceName`      | Y | Output | Name of the instance. |
+| `tableName`      | Y | Output | Name of the table. |
+
+## Binding support
+
+This component supports **output binding** with the following operations:
+- `create`: [Create object](#create-object)
+
+
+### Create object
+
+To perform a create object operation, invoke the binding with a `POST` method and the following JSON body:
+
+```json
+{
+  "operation": "create",
+  "data": "YOUR_CONTENT",
+  "metadata": {
+    "primaryKeys": "pk1"
+  }
+} 
+```
+
+{{% alert title="Note" color="primary" %}}
+Note the `metadata.primaryKeys` field is mandatory.
+{{% /alert %}}
+
+### Delete object
+
+To perform a delete object operation, invoke the binding with a `POST` method and the following JSON body:
+
+```json
+{
+  "operation": "delete",
+  "metadata": {
+   "primaryKeys": "pk1",
+   "columnToGet": "name,age,date"
+  },
+  "data": {
+    "pk1": "data1"
+  }
+} 
+```
+
+{{% alert title="Note" color="primary" %}}
+Note the `metadata.primaryKeys` field is mandatory.
+{{% /alert %}}
+
+### List objects
+
+To perform a list objects operation, invoke the binding with a `POST` method and the following JSON body:
+
+```json
+{
+  "operation": "delete",
+  "metadata": {
+    "primaryKeys": "pk1",
+    "columnToGet": "name,age,date"
+  },
+  "data": {
+    "pk1": "data1",
+    "pk2": "data2"
+  }
+} 
+```
+
+{{% alert title="Note" color="primary" %}}
+Note the `metadata.primaryKeys` field is mandatory.
+{{% /alert %}}
+
+### Get object
+
+To perform a get object operation, invoke the binding with a `POST` method and the following JSON body:
+
+```json
+{
+  "operation": "delete",
+  "metadata": {
+    "primaryKeys": "pk1"
+  },
+  "data": {
+    "pk1": "data1"
+  }
+} 
+```
+
+{{% alert title="Note" color="primary" %}}
+Note the `metadata.primaryKeys` field is mandatory.
+{{% /alert %}}
+
+## Related links
+
+- [Bindings building block]({{< ref bindings >}})
+- [How-To: Use bindings to interface with external resources]({{< ref howto-bindings.md >}})
+- [Bindings API reference]({{< ref bindings_api.md >}})
diff --git a/daprdocs/content/en/reference/components-reference/supported-state-stores/setup-dynamodb.md b/daprdocs/content/en/reference/components-reference/supported-state-stores/setup-dynamodb.md
index 96fdcb07e..3379004dc 100644
--- a/daprdocs/content/en/reference/components-reference/supported-state-stores/setup-dynamodb.md
+++ b/daprdocs/content/en/reference/components-reference/supported-state-stores/setup-dynamodb.md
@@ -39,6 +39,10 @@ spec:
 The above example uses secrets as plain strings. It is recommended to use a secret store for the secrets as described [here]({{< ref component-secrets.md >}}).
 {{% /alert %}}
 
+## Primary Key
+
+In order to use DynamoDB as a Dapr state store, the table must have a primary key named `key`.
+
 ## Spec metadata fields
 
 | Field              | Required | Details | Example |