diff --git a/api-reference-v2/openapi_spec.json b/api-reference-v2/openapi_spec.json
index a2440cfccd..9467ac0820 100644
--- a/api-reference-v2/openapi_spec.json
+++ b/api-reference-v2/openapi_spec.json
@@ -8853,6 +8853,11 @@
             "maxLength": 64,
             "minLength": 1
           },
+          "connector_customer_ids": {
+            "type": "object",
+            "description": "Connector specific customer reference ids",
+            "nullable": true
+          },
           "name": {
             "type": "string",
             "description": "The customer's name",
diff --git a/crates/api_models/Cargo.toml b/crates/api_models/Cargo.toml
index 2b84c50bba..f89558e626 100644
--- a/crates/api_models/Cargo.toml
+++ b/crates/api_models/Cargo.toml
@@ -17,7 +17,7 @@ olap = []
 openapi = ["common_enums/openapi", "olap", "recon", "dummy_connector", "olap"]
 recon = []
 v1 = ["common_utils/v1"]
-v2 = ["common_utils/v2", "customer_v2"]
+v2 = ["common_types/v2", "common_utils/v2", "customer_v2"]
 customer_v2 = ["common_utils/customer_v2"]
 payment_methods_v2 = ["common_utils/payment_methods_v2"]
 dynamic_routing = []
diff --git a/crates/api_models/src/customers.rs b/crates/api_models/src/customers.rs
index d78564ae53..eb61cae6e4 100644
--- a/crates/api_models/src/customers.rs
+++ b/crates/api_models/src/customers.rs
@@ -182,6 +182,9 @@ pub struct CustomerResponse {
     /// The identifier for the customer object
     #[schema(value_type = String, max_length = 64, min_length = 1, example = "cus_y3oqhf46pyzuxjbcn2giaqnb44")]
     pub merchant_reference_id: Option<id_type::CustomerId>,
+    /// Connector specific customer reference ids
+    #[schema(value_type = Option<Object>, example = json!({"mca_hwySG2NtpzX0qr7toOy8": "cus_Rnm2pDKGyQi506"}))]
+    pub connector_customer_ids: Option<common_types::customers::ConnectorCustomerMap>,
     /// The customer's name
     #[schema(max_length = 255, value_type = Option<String>, example = "Jon Test")]
     pub name: crypto::OptionalEncryptableName,
diff --git a/crates/common_types/src/customers.rs b/crates/common_types/src/customers.rs
new file mode 100644
index 0000000000..1d53630cad
--- /dev/null
+++ b/crates/common_types/src/customers.rs
@@ -0,0 +1,30 @@
+//! Customer related types
+
+/// HashMap containing MerchantConnectorAccountId and corresponding customer id
+#[cfg(feature = "v2")]
+#[derive(Clone, Debug, Default, serde::Deserialize, serde::Serialize, diesel::AsExpression)]
+#[diesel(sql_type = diesel::sql_types::Jsonb)]
+#[serde(transparent)]
+pub struct ConnectorCustomerMap(
+    std::collections::HashMap<common_utils::id_type::MerchantConnectorAccountId, String>,
+);
+
+#[cfg(feature = "v2")]
+common_utils::impl_to_sql_from_sql_json!(ConnectorCustomerMap);
+
+#[cfg(feature = "v2")]
+impl std::ops::Deref for ConnectorCustomerMap {
+    type Target =
+        std::collections::HashMap<common_utils::id_type::MerchantConnectorAccountId, String>;
+
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+
+#[cfg(feature = "v2")]
+impl std::ops::DerefMut for ConnectorCustomerMap {
+    fn deref_mut(&mut self) -> &mut Self::Target {
+        &mut self.0
+    }
+}
diff --git a/crates/common_types/src/lib.rs b/crates/common_types/src/lib.rs
index 4d3d2380e2..589a77e3a5 100644
--- a/crates/common_types/src/lib.rs
+++ b/crates/common_types/src/lib.rs
@@ -2,6 +2,7 @@
 
 #![warn(missing_docs, missing_debug_implementations)]
 
+pub mod customers;
 pub mod domain;
 pub mod payment_methods;
 pub mod payments;
diff --git a/crates/diesel_models/src/customers.rs b/crates/diesel_models/src/customers.rs
index b0d4535ddb..24fe34c15d 100644
--- a/crates/diesel_models/src/customers.rs
+++ b/crates/diesel_models/src/customers.rs
@@ -76,7 +76,7 @@ pub struct CustomerNew {
     pub description: Option<Description>,
     pub created_at: PrimitiveDateTime,
     pub metadata: Option<pii::SecretSerdeValue>,
-    pub connector_customer: Option<ConnectorCustomerMap>,
+    pub connector_customer: Option<common_types::customers::ConnectorCustomerMap>,
     pub modified_at: PrimitiveDateTime,
     pub default_payment_method_id: Option<common_utils::id_type::GlobalPaymentMethodId>,
     pub updated_by: Option<String>,
@@ -158,7 +158,7 @@ pub struct Customer {
     pub description: Option<Description>,
     pub created_at: PrimitiveDateTime,
     pub metadata: Option<pii::SecretSerdeValue>,
-    pub connector_customer: Option<ConnectorCustomerMap>,
+    pub connector_customer: Option<common_types::customers::ConnectorCustomerMap>,
     pub modified_at: PrimitiveDateTime,
     pub default_payment_method_id: Option<common_utils::id_type::GlobalPaymentMethodId>,
     pub updated_by: Option<String>,
@@ -236,7 +236,7 @@ pub struct CustomerUpdateInternal {
     pub phone_country_code: Option<String>,
     pub metadata: Option<pii::SecretSerdeValue>,
     pub modified_at: PrimitiveDateTime,
-    pub connector_customer: Option<ConnectorCustomerMap>,
+    pub connector_customer: Option<common_types::customers::ConnectorCustomerMap>,
     pub default_payment_method_id: Option<Option<common_utils::id_type::GlobalPaymentMethodId>>,
     pub updated_by: Option<String>,
     pub default_billing_address: Option<Encryption>,
@@ -283,31 +283,3 @@ impl CustomerUpdateInternal {
         }
     }
 }
-
-#[cfg(all(feature = "v2", feature = "customer_v2"))]
-#[derive(Clone, Debug, Default, serde::Deserialize, serde::Serialize, diesel::AsExpression)]
-#[diesel(sql_type = diesel::sql_types::Jsonb)]
-#[serde(transparent)]
-pub struct ConnectorCustomerMap(
-    std::collections::HashMap<common_utils::id_type::MerchantConnectorAccountId, String>,
-);
-
-#[cfg(all(feature = "v2", feature = "customer_v2"))]
-common_utils::impl_to_sql_from_sql_json!(ConnectorCustomerMap);
-
-#[cfg(all(feature = "v2", feature = "customer_v2"))]
-impl std::ops::Deref for ConnectorCustomerMap {
-    type Target =
-        std::collections::HashMap<common_utils::id_type::MerchantConnectorAccountId, String>;
-
-    fn deref(&self) -> &Self::Target {
-        &self.0
-    }
-}
-
-#[cfg(all(feature = "v2", feature = "customer_v2"))]
-impl std::ops::DerefMut for ConnectorCustomerMap {
-    fn deref_mut(&mut self) -> &mut Self::Target {
-        &mut self.0
-    }
-}
diff --git a/crates/hyperswitch_domain_models/src/customer.rs b/crates/hyperswitch_domain_models/src/customer.rs
index 02c25d722c..384bc5ab42 100644
--- a/crates/hyperswitch_domain_models/src/customer.rs
+++ b/crates/hyperswitch_domain_models/src/customer.rs
@@ -56,7 +56,7 @@ pub struct Customer {
     pub description: Option<Description>,
     pub created_at: PrimitiveDateTime,
     pub metadata: Option<pii::SecretSerdeValue>,
-    pub connector_customer: Option<diesel_models::ConnectorCustomerMap>,
+    pub connector_customer: Option<common_types::customers::ConnectorCustomerMap>,
     pub modified_at: PrimitiveDateTime,
     pub default_payment_method_id: Option<id_type::GlobalPaymentMethodId>,
     pub updated_by: Option<String>,
@@ -334,7 +334,7 @@ pub struct CustomerGeneralUpdate {
     pub description: Option<Description>,
     pub phone_country_code: Option<String>,
     pub metadata: Option<pii::SecretSerdeValue>,
-    pub connector_customer: Box<Option<diesel_models::ConnectorCustomerMap>>,
+    pub connector_customer: Box<Option<common_types::customers::ConnectorCustomerMap>>,
     pub default_billing_address: Option<Encryption>,
     pub default_shipping_address: Option<Encryption>,
     pub default_payment_method_id: Option<Option<id_type::GlobalPaymentMethodId>>,
@@ -346,7 +346,7 @@ pub struct CustomerGeneralUpdate {
 pub enum CustomerUpdate {
     Update(Box<CustomerGeneralUpdate>),
     ConnectorCustomer {
-        connector_customer: Option<diesel_models::ConnectorCustomerMap>,
+        connector_customer: Option<common_types::customers::ConnectorCustomerMap>,
     },
     UpdateDefaultPaymentMethod {
         default_payment_method_id: Option<Option<id_type::GlobalPaymentMethodId>>,
diff --git a/crates/router/src/types/api/customers.rs b/crates/router/src/types/api/customers.rs
index 5b37fb2add..63ebfe4993 100644
--- a/crates/router/src/types/api/customers.rs
+++ b/crates/router/src/types/api/customers.rs
@@ -50,6 +50,7 @@ impl ForeignFrom<customer::Customer> for CustomerResponse {
         customers::CustomerResponse {
             id: cust.id,
             merchant_reference_id: cust.merchant_reference_id,
+            connector_customer_ids: cust.connector_customer,
             name: cust.name,
             email: cust.email,
             phone: cust.phone,