diff --git a/src/connector/src/connector_common/common.rs b/src/connector/src/connector_common/common.rs
index 21ee98f93b2f8..7a5e3ba5f8b2b 100644
--- a/src/connector/src/connector_common/common.rs
+++ b/src/connector/src/connector_common/common.rs
@@ -20,7 +20,6 @@ use std::time::Duration;
 use anyhow::{anyhow, Context};
 use async_nats::jetstream::consumer::DeliverPolicy;
 use async_nats::jetstream::{self};
-use aws_sdk_dynamodb::client::Client as DynamoDBClient;
 use aws_sdk_kinesis::Client as KinesisClient;
 use pulsar::authentication::oauth2::{OAuth2Authentication, OAuth2Params};
 use pulsar::{Authentication, Pulsar, TokioExecutor};
@@ -705,48 +704,6 @@ impl NatsCommon {
     }
 }
 
-#[derive(Deserialize, Debug, Clone, WithOptions)]
-pub struct DynamoDbCommon {
-    #[serde(rename = "table", alias = "dynamodb.table")]
-    pub table: String,
-    // #[serde(rename = "primary_key", alias = "dynamodb.primary_key")]
-    // pub primary_key: String,
-    // #[serde(rename = "sort_key", alias = "dynamodb.sort_key")]
-    // pub sort_key: Option<String>,
-    #[serde(rename = "aws.region")]
-    pub stream_region: String,
-    #[serde(rename = "aws.endpoint")]
-    pub endpoint: Option<String>,
-    #[serde(rename = "aws.credentials.access_key_id")]
-    pub credentials_access_key: Option<String>,
-    #[serde(rename = "aws.credentials.secret_access_key")]
-    pub credentials_secret_access_key: Option<String>,
-    #[serde(rename = "aws.credentials.session_token")]
-    pub session_token: Option<String>,
-    #[serde(rename = "aws.credentials.role.arn")]
-    pub assume_role_arn: Option<String>,
-    #[serde(rename = "aws.credentials.role.external_id")]
-    pub assume_role_external_id: Option<String>,
-}
-
-impl DynamoDbCommon {
-    pub(crate) async fn build_client(&self) -> ConnectorResult<DynamoDBClient> {
-        let config = AwsAuthProps {
-            region: Some(self.stream_region.clone()),
-            endpoint: self.endpoint.clone(),
-            access_key: self.credentials_access_key.clone(),
-            secret_key: self.credentials_secret_access_key.clone(),
-            session_token: self.session_token.clone(),
-            arn: self.assume_role_arn.clone(),
-            external_id: self.assume_role_external_id.clone(),
-            profile: Default::default(),
-        };
-        let aws_config = config.build_config().await?;
-
-        Ok(DynamoDBClient::new(&aws_config))
-    }
-}
-
 pub(crate) fn load_certs(
     certificates: &str,
 ) -> ConnectorResult<Vec<rustls_pki_types::CertificateDer<'static>>> {
diff --git a/src/connector/src/sink/dynamodb.rs b/src/connector/src/sink/dynamodb.rs
index e8321a40443ea..6e65ed0ac1d84 100644
--- a/src/connector/src/sink/dynamodb.rs
+++ b/src/connector/src/sink/dynamodb.rs
@@ -23,7 +23,6 @@ use dynamodb::types::{
     AttributeValue, DeleteRequest, PutRequest, ReturnConsumedCapacity, ReturnItemCollectionMetrics,
     TableStatus, WriteRequest,
 };
-use itertools::Itertools;
 use maplit::hashmap;
 use risingwave_common::array::{Op, RowRef, StreamChunk};
 use risingwave_common::catalog::{Field, Schema};
@@ -31,7 +30,6 @@ use risingwave_common::row::Row as _;
 use risingwave_common::types::{DataType, ScalarRefImpl, ToText};
 use risingwave_common::util::iter_util::ZipEqDebug;
 use serde_derive::Deserialize;
-use serde_with::serde_as;
 use with_options::WithOptions;
 
 use super::log_store::DeliveryFutureManagerAddFuture;
@@ -39,18 +37,28 @@ use super::writer::{
     AsyncTruncateLogSinkerOf, AsyncTruncateSinkWriter, AsyncTruncateSinkWriterExt,
 };
 use super::{DummySinkCommitCoordinator, Result, Sink, SinkError, SinkParam, SinkWriterParam};
-use crate::connector_common::common::DynamoDbCommon;
+use crate::connector_common::AwsAuthProps;
+use crate::error::ConnectorResult;
 
 pub const DYNAMO_DB_SINK: &str = "dynamodb";
 
-#[serde_as]
-#[derive(Clone, Debug, Deserialize, WithOptions)]
+#[derive(Deserialize, Debug, Clone, WithOptions)]
 pub struct DynamoDbConfig {
+    #[serde(rename = "table", alias = "dynamodb.table")]
+    pub table: String,
+
     #[serde(flatten)]
-    pub common: DynamoDbCommon,
+    pub aws_auth_props: AwsAuthProps,
 }
 
 impl DynamoDbConfig {
+    pub async fn build_client(&self) -> ConnectorResult<Client> {
+        let config = &self.aws_auth_props;
+        let aws_config = config.build_config().await?;
+
+        Ok(Client::new(&aws_config))
+    }
+
     fn from_hashmap(values: HashMap<String, String>) -> Result<Self> {
         serde_json::from_value::<DynamoDbConfig>(serde_json::to_value(values).unwrap())
             .map_err(|e| SinkError::Config(anyhow!(e)))
@@ -71,11 +79,11 @@ impl Sink for DynamoDbSink {
     const SINK_NAME: &'static str = DYNAMO_DB_SINK;
 
     async fn validate(&self) -> Result<()> {
-        let client = (self.config.common.build_client().await)
+        let client = (self.config.build_client().await)
             .context("validate DynamoDB sink error")
             .map_err(SinkError::DynamoDb)?;
 
-        let table_name = &self.config.common.table;
+        let table_name = &self.config.table;
         let output = client
             .describe_table()
             .table_name(table_name)
@@ -156,7 +164,7 @@ impl DynamoDbRequest {
             _ => return None,
         };
         let vs = key
-            .into_iter()
+            .iter()
             .filter(|(k, _)| self.key_items.contains(k))
             .map(|(_, v)| v.clone())
             .collect();
@@ -240,8 +248,8 @@ pub struct DynamoDbSinkWriter {
 
 impl DynamoDbSinkWriter {
     pub async fn new(config: DynamoDbConfig, schema: Schema) -> Result<Self> {
-        let client = config.common.build_client().await?;
-        let table_name = &config.common.table;
+        let client = config.build_client().await?;
+        let table_name = &config.table;
         let output = client
             .describe_table()
             .table_name(table_name)
@@ -259,12 +267,12 @@ impl DynamoDbSinkWriter {
             .unwrap_or_default()
             .into_iter()
             .map(|k| k.attribute_name)
-            .collect_vec();
+            .collect();
 
         let payload_writer = DynamoDbPayloadWriter {
             request_items: Vec::new(),
             client,
-            table: config.common.table,
+            table: config.table,
             dynamodb_keys,
         };