Issue:
Bug: [FEATURE] : Billwerk payments integration 



### Feature Description

Billwerk Payments is a payment gateway provider focused on Northern Europe countries.

### Possible Implementation

Product: [https://www.billwerk.plus/payments/](https://www.billwerk.plus/payments/)
Docs: [https://docs.reepay.com/](https://docs.reepay.com/)

### Have you spent some time checking if this feature request has been raised before?

- [X] I checked and didn't find a similar issue

### Have you read the Contributing Guidelines?

- [X] I have read the [Contributing Guidelines](https://github.com/juspay/hyperswitch/blob/main/docs/CONTRIBUTING.md)

### Are you willing to submit a PR?

None

Pull request description:
## Type of Change
<!-- Put an `x` in the boxes that apply -->

- [ ] Bugfix
- [X] New feature
- [ ] Enhancement
- [ ] Refactoring
- [ ] Dependency updates
- [ ] Documentation
- [ ] CI/CD

## Description
<!-- Describe your changes in detail -->
Add Billwerk Template connector code
https://reference.reepay.com/api/

### Additional Changes

- [ ] This PR modifies the API contract
- [ ] This PR modifies the database schema
- [x] This PR modifies application configuration/environment variables

<!--
Provide links to the files with corresponding changes.

Following are the paths where you can find config files:
1. `config`
2. `crates/router/src/configs`
3. `loadtest/config`
-->


## Motivation and Context
<!--
Why is this change required? What problem does it solve?
If it fixes an open issue, please link to the issue here.

If you don't have an issue, we'd recommend starting with one first so the PR
can focus on the implementation (unless it is an obvious bug or documentation fix
that will have little conversation).
-->
#3227 

## How did you test it?
<!--
Did you write an integration/unit/API test to verify the code changes?
Or did you test this change manually (provide relevant screenshots)?
-->
Template code added hence no testing required

## Checklist
<!-- Put an `x` in the boxes that apply -->

- [X] I formatted the code `cargo +nightly fmt --all`
- [X] I addressed lints thrown by `cargo clippy`
- [X] I reviewed the submitted code
- [ ] I added unit tests for my changes where possible
- [ ] I added a [CHANGELOG](/CHANGELOG.md) entry if applicable


Testing:

Template code added hence no testing required

Patch:
diff --git a/config/config.example.toml b/config/config.example.toml
index 81cd78f7244..ee868beb092 100644
--- a/config/config.example.toml
+++ b/config/config.example.toml
@@ -170,6 +170,7 @@ applepay.base_url = "https://apple-pay-gateway.apple.com/"
 authorizedotnet.base_url = "https://apitest.authorize.net/xml/v1/request.api"
 bambora.base_url = "https://api.na.bambora.com"
 bankofamerica.base_url = "https://apitest.merchant-services.bankofamerica.com/"
+billwerk.base_url = "https://api.reepay.com/"
 bitpay.base_url = "https://test.bitpay.com"
 bluesnap.base_url = "https://sandbox.bluesnap.com/"
 bluesnap.secondary_base_url = "https://sandpay.bluesnap.com/"
diff --git a/config/development.toml b/config/development.toml
index 66ed76c8f3c..8d18e63122f 100644
--- a/config/development.toml
+++ b/config/development.toml
@@ -97,6 +97,7 @@ cards = [
     "authorizedotnet",
     "bambora",
     "bankofamerica",
+    "billwerk",
     "bitpay",
     "bluesnap",
     "boku",
@@ -165,6 +166,7 @@ applepay.base_url = "https://apple-pay-gateway.apple.com/"
 authorizedotnet.base_url = "https://apitest.authorize.net/xml/v1/request.api"
 bambora.base_url = "https://api.na.bambora.com"
 bankofamerica.base_url = "https://apitest.merchant-services.bankofamerica.com/"
+billwerk.base_url = "https://api.reepay.com/"
 bitpay.base_url = "https://test.bitpay.com"
 bluesnap.base_url = "https://sandbox.bluesnap.com/"
 bluesnap.secondary_base_url = "https://sandpay.bluesnap.com/"
diff --git a/config/docker_compose.toml b/config/docker_compose.toml
index 7677fc4582d..ceb00ff212e 100644
--- a/config/docker_compose.toml
+++ b/config/docker_compose.toml
@@ -104,6 +104,7 @@ applepay.base_url = "https://apple-pay-gateway.apple.com/"
 authorizedotnet.base_url = "https://apitest.authorize.net/xml/v1/request.api"
 bambora.base_url = "https://api.na.bambora.com"
 bankofamerica.base_url = "https://apitest.merchant-services.bankofamerica.com/"
+billwerk.base_url = "https://api.reepay.com/"
 bitpay.base_url = "https://test.bitpay.com"
 bluesnap.base_url = "https://sandbox.bluesnap.com/"
 bluesnap.secondary_base_url = "https://sandpay.bluesnap.com/"
@@ -176,6 +177,7 @@ cards = [
     "authorizedotnet",
     "bambora",
     "bankofamerica",
+    "billwerk",
     "bitpay",
     "bluesnap",
     "boku",
diff --git a/crates/api_models/src/enums.rs b/crates/api_models/src/enums.rs
index f712871abe1..b29377886d5 100644
--- a/crates/api_models/src/enums.rs
+++ b/crates/api_models/src/enums.rs
@@ -78,6 +78,7 @@ pub enum Connector {
     Authorizedotnet,
     Bambora,
     Bankofamerica,
+    // Billwerk, Added as template code for future usage
     Bitpay,
     Bluesnap,
     Boku,
@@ -165,6 +166,7 @@ impl Connector {
             | Self::Authorizedotnet
             | Self::Bambora
             | Self::Bankofamerica
+            // | Self::Billwerk Added as template code for future usage
             | Self::Bitpay
             | Self::Bluesnap
             | Self::Boku
@@ -221,6 +223,7 @@ impl Connector {
             | Self::Authorizedotnet
             | Self::Bambora
             | Self::Bankofamerica
+            // | Self::Billwerk Added as template for future usage
             | Self::Bitpay
             | Self::Bluesnap
             | Self::Boku
diff --git a/crates/common_enums/src/enums.rs b/crates/common_enums/src/enums.rs
index 89ca80e72b3..65842a4203d 100644
--- a/crates/common_enums/src/enums.rs
+++ b/crates/common_enums/src/enums.rs
@@ -115,6 +115,7 @@ pub enum RoutableConnectors {
     Airwallex,
     Authorizedotnet,
     Bankofamerica,
+    // Billwerk, Added as template code for future usage
     Bitpay,
     Bambora,
     Bluesnap,
diff --git a/crates/connector_configs/src/connector.rs b/crates/connector_configs/src/connector.rs
index 2ef80f8f2f6..74317319f50 100644
--- a/crates/connector_configs/src/connector.rs
+++ b/crates/connector_configs/src/connector.rs
@@ -116,6 +116,7 @@ pub struct ConnectorConfig {
     pub airwallex: Option<ConnectorTomlConfig>,
     pub authorizedotnet: Option<ConnectorTomlConfig>,
     pub bankofamerica: Option<ConnectorTomlConfig>,
+    pub billwerk: Option<ConnectorTomlConfig>,
     pub bitpay: Option<ConnectorTomlConfig>,
     pub bluesnap: Option<ConnectorTomlConfig>,
     pub boku: Option<ConnectorTomlConfig>,
@@ -227,6 +228,7 @@ impl ConnectorConfig {
             Connector::Airwallex => Ok(connector_data.airwallex),
             Connector::Authorizedotnet => Ok(connector_data.authorizedotnet),
             Connector::Bankofamerica => Ok(connector_data.bankofamerica),
+            // Connector::Billwerk => Ok(connector_data.billwerk), Added as template code for future usage
             Connector::Bitpay => Ok(connector_data.bitpay),
             Connector::Bluesnap => Ok(connector_data.bluesnap),
             Connector::Boku => Ok(connector_data.boku),
diff --git a/crates/router/src/configs/settings.rs b/crates/router/src/configs/settings.rs
index 2f87c5c21d7..d92812cee40 100644
--- a/crates/router/src/configs/settings.rs
+++ b/crates/router/src/configs/settings.rs
@@ -480,6 +480,7 @@ pub struct Connectors {
     pub authorizedotnet: ConnectorParams,
     pub bambora: ConnectorParams,
     pub bankofamerica: ConnectorParams,
+    pub billwerk: ConnectorParams,
     pub bitpay: ConnectorParams,
     pub bluesnap: ConnectorParamsWithSecondaryBaseUrl,
     pub boku: ConnectorParams,
diff --git a/crates/router/src/connector.rs b/crates/router/src/connector.rs
index eccdf3f9ddf..d786ed4e31b 100644
--- a/crates/router/src/connector.rs
+++ b/crates/router/src/connector.rs
@@ -4,6 +4,7 @@ pub mod airwallex;
 pub mod authorizedotnet;
 pub mod bambora;
 pub mod bankofamerica;
+pub mod billwerk;
 pub mod bitpay;
 pub mod bluesnap;
 pub mod boku;
@@ -60,15 +61,15 @@ pub mod zen;
 pub use self::dummyconnector::DummyConnector;
 pub use self::{
     aci::Aci, adyen::Adyen, airwallex::Airwallex, authorizedotnet::Authorizedotnet,
-    bambora::Bambora, bankofamerica::Bankofamerica, bitpay::Bitpay, bluesnap::Bluesnap, boku::Boku,
-    braintree::Braintree, cashtocode::Cashtocode, checkout::Checkout, coinbase::Coinbase,
-    cryptopay::Cryptopay, cybersource::Cybersource, dlocal::Dlocal, fiserv::Fiserv, forte::Forte,
-    globalpay::Globalpay, globepay::Globepay, gocardless::Gocardless, helcim::Helcim,
-    iatapay::Iatapay, klarna::Klarna, mollie::Mollie, multisafepay::Multisafepay,
-    nexinets::Nexinets, nmi::Nmi, noon::Noon, nuvei::Nuvei, opayo::Opayo, opennode::Opennode,
-    payeezy::Payeezy, payme::Payme, paypal::Paypal, payu::Payu, placetopay::Placetopay,
-    powertranz::Powertranz, prophetpay::Prophetpay, rapyd::Rapyd, riskified::Riskified,
-    shift4::Shift4, signifyd::Signifyd, square::Square, stax::Stax, stripe::Stripe,
-    threedsecureio::Threedsecureio, trustpay::Trustpay, tsys::Tsys, volt::Volt, wise::Wise,
-    worldline::Worldline, worldpay::Worldpay, zen::Zen,
+    bambora::Bambora, bankofamerica::Bankofamerica, billwerk::Billwerk, bitpay::Bitpay,
+    bluesnap::Bluesnap, boku::Boku, braintree::Braintree, cashtocode::Cashtocode,
+    checkout::Checkout, coinbase::Coinbase, cryptopay::Cryptopay, cybersource::Cybersource,
+    dlocal::Dlocal, fiserv::Fiserv, forte::Forte, globalpay::Globalpay, globepay::Globepay,
+    gocardless::Gocardless, helcim::Helcim, iatapay::Iatapay, klarna::Klarna, mollie::Mollie,
+    multisafepay::Multisafepay, nexinets::Nexinets, nmi::Nmi, noon::Noon, nuvei::Nuvei,
+    opayo::Opayo, opennode::Opennode, payeezy::Payeezy, payme::Payme, paypal::Paypal, payu::Payu,
+    placetopay::Placetopay, powertranz::Powertranz, prophetpay::Prophetpay, rapyd::Rapyd,
+    riskified::Riskified, shift4::Shift4, signifyd::Signifyd, square::Square, stax::Stax,
+    stripe::Stripe, threedsecureio::Threedsecureio, trustpay::Trustpay, tsys::Tsys, volt::Volt,
+    wise::Wise, worldline::Worldline, worldpay::Worldpay, zen::Zen,
 };
diff --git a/crates/router/src/connector/billwerk.rs b/crates/router/src/connector/billwerk.rs
new file mode 100644
index 00000000000..c7d81e06c32
--- /dev/null
+++ b/crates/router/src/connector/billwerk.rs
@@ -0,0 +1,561 @@
+pub mod transformers;
+
+use std::fmt::Debug;
+
+use error_stack::{IntoReport, ResultExt};
+use masking::ExposeInterface;
+use transformers as billwerk;
+
+use crate::{
+    configs::settings,
+    core::errors::{self, CustomResult},
+    events::connector_api_logs::ConnectorEvent,
+    headers,
+    services::{
+        self,
+        request::{self, Mask},
+        ConnectorIntegration, ConnectorValidation,
+    },
+    types::{
+        self,
+        api::{self, ConnectorCommon, ConnectorCommonExt},
+        ErrorResponse, RequestContent, Response,
+    },
+    utils::BytesExt,
+};
+
+#[derive(Debug, Clone)]
+pub struct Billwerk;
+
+impl api::Payment for Billwerk {}
+impl api::PaymentSession for Billwerk {}
+impl api::ConnectorAccessToken for Billwerk {}
+impl api::MandateSetup for Billwerk {}
+impl api::PaymentAuthorize for Billwerk {}
+impl api::PaymentSync for Billwerk {}
+impl api::PaymentCapture for Billwerk {}
+impl api::PaymentVoid for Billwerk {}
+impl api::Refund for Billwerk {}
+impl api::RefundExecute for Billwerk {}
+impl api::RefundSync for Billwerk {}
+impl api::PaymentToken for Billwerk {}
+
+impl
+    ConnectorIntegration<
+        api::PaymentMethodToken,
+        types::PaymentMethodTokenizationData,
+        types::PaymentsResponseData,
+    > for Billwerk
+{
+    // Not Implemented (R)
+}
+
+impl<Flow, Request, Response> ConnectorCommonExt<Flow, Request, Response> for Billwerk
+where
+    Self: ConnectorIntegration<Flow, Request, Response>,
+{
+    fn build_headers(
+        &self,
+        req: &types::RouterData<Flow, Request, Response>,
+        _connectors: &settings::Connectors,
+    ) -> CustomResult<Vec<(String, request::Maskable<String>)>, errors::ConnectorError> {
+        let mut header = vec![(
+            headers::CONTENT_TYPE.to_string(),
+            self.get_content_type().to_string().into(),
+        )];
+        let mut api_key = self.get_auth_header(&req.connector_auth_type)?;
+        header.append(&mut api_key);
+        Ok(header)
+    }
+}
+
+impl ConnectorCommon for Billwerk {
+    fn id(&self) -> &'static str {
+        "billwerk"
+    }
+
+    fn get_currency_unit(&self) -> api::CurrencyUnit {
+        api::CurrencyUnit::Minor
+    }
+
+    fn common_get_content_type(&self) -> &'static str {
+        "application/json"
+    }
+
+    fn base_url<'a>(&self, connectors: &'a settings::Connectors) -> &'a str {
+        connectors.billwerk.base_url.as_ref()
+    }
+
+    fn get_auth_header(
+        &self,
+        auth_type: &types::ConnectorAuthType,
+    ) -> CustomResult<Vec<(String, request::Maskable<String>)>, errors::ConnectorError> {
+        let auth = billwerk::BillwerkAuthType::try_from(auth_type)
+            .change_context(errors::ConnectorError::FailedToObtainAuthType)?;
+        Ok(vec![(
+            headers::AUTHORIZATION.to_string(),
+            auth.api_key.expose().into_masked(),
+        )])
+    }
+
+    fn build_error_response(
+        &self,
+        res: Response,
+        event_builder: Option<&mut ConnectorEvent>,
+    ) -> CustomResult<ErrorResponse, errors::ConnectorError> {
+        let response: billwerk::BillwerkErrorResponse = res
+            .response
+            .parse_struct("BillwerkErrorResponse")
+            .change_context(errors::ConnectorError::ResponseDeserializationFailed)?;
+
+        event_builder.map(|i| i.set_response_body(&response));
+        router_env::logger::info!(connector_response=?response);
+
+        Ok(ErrorResponse {
+            status_code: res.status_code,
+            code: response.code,
+            message: response.message,
+            reason: response.reason,
+            attempt_status: None,
+            connector_transaction_id: None,
+        })
+    }
+}
+
+impl ConnectorValidation for Billwerk {
+    //TODO: implement functions when support enabled
+}
+
+impl ConnectorIntegration<api::Session, types::PaymentsSessionData, types::PaymentsResponseData>
+    for Billwerk
+{
+    //TODO: implement sessions flow
+}
+
+impl ConnectorIntegration<api::AccessTokenAuth, types::AccessTokenRequestData, types::AccessToken>
+    for Billwerk
+{
+}
+
+impl
+    ConnectorIntegration<
+        api::SetupMandate,
+        types::SetupMandateRequestData,
+        types::PaymentsResponseData,
+    > for Billwerk
+{
+}
+
+impl ConnectorIntegration<api::Authorize, types::PaymentsAuthorizeData, types::PaymentsResponseData>
+    for Billwerk
+{
+    fn get_headers(
+        &self,
+        req: &types::PaymentsAuthorizeRouterData,
+        connectors: &settings::Connectors,
+    ) -> CustomResult<Vec<(String, request::Maskable<String>)>, errors::ConnectorError> {
+        self.build_headers(req, connectors)
+    }
+
+    fn get_content_type(&self) -> &'static str {
+        self.common_get_content_type()
+    }
+
+    fn get_url(
+        &self,
+        _req: &types::PaymentsAuthorizeRouterData,
+        _connectors: &settings::Connectors,
+    ) -> CustomResult<String, errors::ConnectorError> {
+        Err(errors::ConnectorError::NotImplemented("get_url method".to_string()).into())
+    }
+
+    fn get_request_body(
+        &self,
+        req: &types::PaymentsAuthorizeRouterData,
+        _connectors: &settings::Connectors,
+    ) -> CustomResult<RequestContent, errors::ConnectorError> {
+        let connector_router_data = billwerk::BillwerkRouterData::try_from((
+            &self.get_currency_unit(),
+            req.request.currency,
+            req.request.amount,
+            req,
+        ))?;
+        let connector_req = billwerk::BillwerkPaymentsRequest::try_from(&connector_router_data)?;
+        Ok(RequestContent::Json(Box::new(connector_req)))
+    }
+
+    fn build_request(
+        &self,
+        req: &types::PaymentsAuthorizeRouterData,
+        connectors: &settings::Connectors,
+    ) -> CustomResult<Option<services::Request>, errors::ConnectorError> {
+        Ok(Some(
+            services::RequestBuilder::new()
+                .method(services::Method::Post)
+                .url(&types::PaymentsAuthorizeType::get_url(
+                    self, req, connectors,
+                )?)
+                .attach_default_headers()
+                .headers(types::PaymentsAuthorizeType::get_headers(
+                    self, req, connectors,
+                )?)
+                .set_body(types::PaymentsAuthorizeType::get_request_body(
+                    self, req, connectors,
+                )?)
+                .build(),
+        ))
+    }
+
+    fn handle_response(
+        &self,
+        data: &types::PaymentsAuthorizeRouterData,
+        event_builder: Option<&mut ConnectorEvent>,
+        res: Response,
+    ) -> CustomResult<types::PaymentsAuthorizeRouterData, errors::ConnectorError> {
+        let response: billwerk::BillwerkPaymentsResponse = res
+            .response
+            .parse_struct("Billwerk PaymentsAuthorizeResponse")
+            .change_context(errors::ConnectorError::ResponseDeserializationFailed)?;
+        event_builder.map(|i| i.set_response_body(&response));
+        router_env::logger::info!(connector_response=?response);
+        types::RouterData::try_from(types::ResponseRouterData {
+            response,
+            data: data.clone(),
+            http_code: res.status_code,
+        })
+    }
+
+    fn get_error_response(
+        &self,
+        res: Response,
+        event_builder: Option<&mut ConnectorEvent>,
+    ) -> CustomResult<ErrorResponse, errors::ConnectorError> {
+        self.build_error_response(res, event_builder)
+    }
+}
+
+impl ConnectorIntegration<api::PSync, types::PaymentsSyncData, types::PaymentsResponseData>
+    for Billwerk
+{
+    fn get_headers(
+        &self,
+        req: &types::PaymentsSyncRouterData,
+        connectors: &settings::Connectors,
+    ) -> CustomResult<Vec<(String, request::Maskable<String>)>, errors::ConnectorError> {
+        self.build_headers(req, connectors)
+    }
+
+    fn get_content_type(&self) -> &'static str {
+        self.common_get_content_type()
+    }
+
+    fn get_url(
+        &self,
+        _req: &types::PaymentsSyncRouterData,
+        _connectors: &settings::Connectors,
+    ) -> CustomResult<String, errors::ConnectorError> {
+        Err(errors::ConnectorError::NotImplemented("get_url method".to_string()).into())
+    }
+
+    fn build_request(
+        &self,
+        req: &types::PaymentsSyncRouterData,
+        connectors: &settings::Connectors,
+    ) -> CustomResult<Option<services::Request>, errors::ConnectorError> {
+        Ok(Some(
+            services::RequestBuilder::new()
+                .method(services::Method::Get)
+                .url(&types::PaymentsSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
+                .headers(types::PaymentsSyncType::get_headers(self, req, connectors)?)
+                .build(),
+        ))
+    }
+
+    fn handle_response(
+        &self,
+        data: &types::PaymentsSyncRouterData,
+        event_builder: Option<&mut ConnectorEvent>,
+        res: Response,
+    ) -> CustomResult<types::PaymentsSyncRouterData, errors::ConnectorError> {
+        let response: billwerk::BillwerkPaymentsResponse = res
+            .response
+            .parse_struct("billwerk PaymentsSyncResponse")
+            .change_context(errors::ConnectorError::ResponseDeserializationFailed)?;
+        event_builder.map(|i| i.set_response_body(&response));
+        router_env::logger::info!(connector_response=?response);
+        types::RouterData::try_from(types::ResponseRouterData {
+            response,
+            data: data.clone(),
+            http_code: res.status_code,
+        })
+    }
+
+    fn get_error_response(
+        &self,
+        res: Response,
+        event_builder: Option<&mut ConnectorEvent>,
+    ) -> CustomResult<ErrorResponse, errors::ConnectorError> {
+        self.build_error_response(res, event_builder)
+    }
+}
+
+impl ConnectorIntegration<api::Capture, types::PaymentsCaptureData, types::PaymentsResponseData>
+    for Billwerk
+{
+    fn get_headers(
+        &self,
+        req: &types::PaymentsCaptureRouterData,
+        connectors: &settings::Connectors,
+    ) -> CustomResult<Vec<(String, request::Maskable<String>)>, errors::ConnectorError> {
+        self.build_headers(req, connectors)
+    }
+
+    fn get_content_type(&self) -> &'static str {
+        self.common_get_content_type()
+    }
+
+    fn get_url(
+        &self,
+        _req: &types::PaymentsCaptureRouterData,
+        _connectors: &settings::Connectors,
+    ) -> CustomResult<String, errors::ConnectorError> {
+        Err(errors::ConnectorError::NotImplemented("get_url method".to_string()).into())
+    }
+
+    fn get_request_body(
+        &self,
+        _req: &types::PaymentsCaptureRouterData,
+        _connectors: &settings::Connectors,
+    ) -> CustomResult<RequestContent, errors::ConnectorError> {
+        Err(errors::ConnectorError::NotImplemented("get_request_body method".to_string()).into())
+    }
+
+    fn build_request(
+        &self,
+        req: &types::PaymentsCaptureRouterData,
+        connectors: &settings::Connectors,
+    ) -> CustomResult<Option<services::Request>, errors::ConnectorError> {
+        Ok(Some(
+            services::RequestBuilder::new()
+                .method(services::Method::Post)
+                .url(&types::PaymentsCaptureType::get_url(self, req, connectors)?)
+                .attach_default_headers()
+                .headers(types::PaymentsCaptureType::get_headers(
+                    self, req, connectors,
+                )?)
+                .set_body(types::PaymentsCaptureType::get_request_body(
+                    self, req, connectors,
+                )?)
+                .build(),
+        ))
+    }
+
+    fn handle_response(
+        &self,
+        data: &types::PaymentsCaptureRouterData,
+        event_builder: Option<&mut ConnectorEvent>,
+        res: Response,
+    ) -> CustomResult<types::PaymentsCaptureRouterData, errors::ConnectorError> {
+        let response: billwerk::BillwerkPaymentsResponse = res
+            .response
+            .parse_struct("Billwerk PaymentsCaptureResponse")
+            .change_context(errors::ConnectorError::ResponseDeserializationFailed)?;
+        event_builder.map(|i| i.set_response_body(&response));
+        router_env::logger::info!(connector_response=?response);
+        types::RouterData::try_from(types::ResponseRouterData {
+            response,
+            data: data.clone(),
+            http_code: res.status_code,
+        })
+    }
+
+    fn get_error_response(
+        &self,
+        res: Response,
+        event_builder: Option<&mut ConnectorEvent>,
+    ) -> CustomResult<ErrorResponse, errors::ConnectorError> {
+        self.build_error_response(res, event_builder)
+    }
+}
+
+impl ConnectorIntegration<api::Void, types::PaymentsCancelData, types::PaymentsResponseData>
+    for Billwerk
+{
+}
+
+impl ConnectorIntegration<api::Execute, types::RefundsData, types::RefundsResponseData>
+    for Billwerk
+{
+    fn get_headers(
+        &self,
+        req: &types::RefundsRouterData<api::Execute>,
+        connectors: &settings::Connectors,
+    ) -> CustomResult<Vec<(String, request::Maskable<String>)>, errors::ConnectorError> {
+        self.build_headers(req, connectors)
+    }
+
+    fn get_content_type(&self) -> &'static str {
+        self.common_get_content_type()
+    }
+
+    fn get_url(
+        &self,
+        _req: &types::RefundsRouterData<api::Execute>,
+        _connectors: &settings::Connectors,
+    ) -> CustomResult<String, errors::ConnectorError> {
+        Err(errors::ConnectorError::NotImplemented("get_url method".to_string()).into())
+    }
+
+    fn get_request_body(
+        &self,
+        req: &types::RefundsRouterData<api::Execute>,
+        _connectors: &settings::Connectors,
+    ) -> CustomResult<RequestContent, errors::ConnectorError> {
+        let connector_router_data = billwerk::BillwerkRouterData::try_from((
+            &self.get_currency_unit(),
+            req.request.currency,
+            req.request.refund_amount,
+            req,
+        ))?;
+        let connector_req = billwerk::BillwerkRefundRequest::try_from(&connector_router_data)?;
+        Ok(RequestContent::Json(Box::new(connector_req)))
+    }
+
+    fn build_request(
+        &self,
+        req: &types::RefundsRouterData<api::Execute>,
+        connectors: &settings::Connectors,
+    ) -> CustomResult<Option<services::Request>, errors::ConnectorError> {
+        let request = services::RequestBuilder::new()
+            .method(services::Method::Post)
+            .url(&types::RefundExecuteType::get_url(self, req, connectors)?)
+            .attach_default_headers()
+            .headers(types::RefundExecuteType::get_headers(
+                self, req, connectors,
+            )?)
+            .set_body(types::RefundExecuteType::get_request_body(
+                self, req, connectors,
+            )?)
+            .build();
+        Ok(Some(request))
+    }
+
+    fn handle_response(
+        &self,
+        data: &types::RefundsRouterData<api::Execute>,
+        event_builder: Option<&mut ConnectorEvent>,
+        res: Response,
+    ) -> CustomResult<types::RefundsRouterData<api::Execute>, errors::ConnectorError> {
+        let response: billwerk::RefundResponse = res
+            .response
+            .parse_struct("billwerk RefundResponse")
+            .change_context(errors::ConnectorError::ResponseDeserializationFailed)?;
+        event_builder.map(|i| i.set_response_body(&response));
+        router_env::logger::info!(connector_response=?response);
+        types::RouterData::try_from(types::ResponseRouterData {
+            response,
+            data: data.clone(),
+            http_code: res.status_code,
+        })
+    }
+
+    fn get_error_response(
+        &self,
+        res: Response,
+        event_builder: Option<&mut ConnectorEvent>,
+    ) -> CustomResult<ErrorResponse, errors::ConnectorError> {
+        self.build_error_response(res, event_builder)
+    }
+}
+
+impl ConnectorIntegration<api::RSync, types::RefundsData, types::RefundsResponseData> for Billwerk {
+    fn get_headers(
+        &self,
+        req: &types::RefundSyncRouterData,
+        connectors: &settings::Connectors,
+    ) -> CustomResult<Vec<(String, request::Maskable<String>)>, errors::ConnectorError> {
+        self.build_headers(req, connectors)
+    }
+
+    fn get_content_type(&self) -> &'static str {
+        self.common_get_content_type()
+    }
+
+    fn get_url(
+        &self,
+        _req: &types::RefundSyncRouterData,
+        _connectors: &settings::Connectors,
+    ) -> CustomResult<String, errors::ConnectorError> {
+        Err(errors::ConnectorError::NotImplemented("get_url method".to_string()).into())
+    }
+
+    fn build_request(
+        &self,
+        req: &types::RefundSyncRouterData,
+        connectors: &settings::Connectors,
+    ) -> CustomResult<Option<services::Request>, errors::ConnectorError> {
+        Ok(Some(
+            services::RequestBuilder::new()
+                .method(services::Method::Get)
+                .url(&types::RefundSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
+                .headers(types::RefundSyncType::get_headers(self, req, connectors)?)
+                .set_body(types::RefundSyncType::get_request_body(
+                    self, req, connectors,
+                )?)
+                .build(),
+        ))
+    }
+
+    fn handle_response(
+        &self,
+        data: &types::RefundSyncRouterData,
+        event_builder: Option<&mut ConnectorEvent>,
+        res: Response,
+    ) -> CustomResult<types::RefundSyncRouterData, errors::ConnectorError> {
+        let response: billwerk::RefundResponse = res
+            .response
+            .parse_struct("billwerk RefundSyncResponse")
+            .change_context(errors::ConnectorError::ResponseDeserializationFailed)?;
+        event_builder.map(|i| i.set_response_body(&response));
+        router_env::logger::info!(connector_response=?response);
+        types::RouterData::try_from(types::ResponseRouterData {
+            response,
+            data: data.clone(),
+            http_code: res.status_code,
+        })
+    }
+
+    fn get_error_response(
+        &self,
+        res: Response,
+        event_builder: Option<&mut ConnectorEvent>,
+    ) -> CustomResult<ErrorResponse, errors::ConnectorError> {
+        self.build_error_response(res, event_builder)
+    }
+}
+
+#[async_trait::async_trait]
+impl api::IncomingWebhook for Billwerk {
+    fn get_webhook_object_reference_id(
+        &self,
+        _request: &api::IncomingWebhookRequestDetails<'_>,
+    ) -> CustomResult<api::webhooks::ObjectReferenceId, errors::ConnectorError> {
+        Err(errors::ConnectorError::WebhooksNotImplemented).into_report()
+    }
+
+    fn get_webhook_event_type(
+        &self,
+        _request: &api::IncomingWebhookRequestDetails<'_>,
+    ) -> CustomResult<api::IncomingWebhookEvent, errors::ConnectorError> {
+        Err(errors::ConnectorError::WebhooksNotImplemented).into_report()
+    }
+
+    fn get_webhook_resource_object(
+        &self,
+        _request: &api::IncomingWebhookRequestDetails<'_>,
+    ) -> CustomResult<Box<dyn masking::ErasedMaskSerialize>, errors::ConnectorError> {
+        Err(errors::ConnectorError::WebhooksNotImplemented).into_report()
+    }
+}
diff --git a/crates/router/src/connector/billwerk/transformers.rs b/crates/router/src/connector/billwerk/transformers.rs
new file mode 100644
index 00000000000..c6f025b7898
--- /dev/null
+++ b/crates/router/src/connector/billwerk/transformers.rs
@@ -0,0 +1,244 @@
+use masking::Secret;
+use serde::{Deserialize, Serialize};
+
+use crate::{
+    connector::utils::PaymentsAuthorizeRequestData,
+    core::errors,
+    types::{self, api, storage::enums},
+};
+
+//TODO: Fill the struct with respective fields
+pub struct BillwerkRouterData<T> {
+    pub amount: i64, // The type of amount that a connector accepts, for example, String, i64, f64, etc.
+    pub router_data: T,
+}
+
+impl<T>
+    TryFrom<(
+        &types::api::CurrencyUnit,
+        types::storage::enums::Currency,
+        i64,
+        T,
+    )> for BillwerkRouterData<T>
+{
+    type Error = error_stack::Report<errors::ConnectorError>;
+    fn try_from(
+        (_currency_unit, _currency, amount, item): (
+            &types::api::CurrencyUnit,
+            types::storage::enums::Currency,
+            i64,
+            T,
+        ),
+    ) -> Result<Self, Self::Error> {
+        //Todo :  use utils to convert the amount to the type of amount that a connector accepts
+        Ok(Self {
+            amount,
+            router_data: item,
+        })
+    }
+}
+
+//TODO: Fill the struct with respective fields
+#[derive(Default, Debug, Serialize, Eq, PartialEq)]
+pub struct BillwerkPaymentsRequest {
+    amount: i64,
+    card: BillwerkCard,
+}
+
+#[derive(Default, Debug, Serialize, Eq, PartialEq)]
+pub struct BillwerkCard {
+    number: cards::CardNumber,
+    expiry_month: Secret<String>,
+    expiry_year: Secret<String>,
+    cvc: Secret<String>,
+    complete: bool,
+}
+
+impl TryFrom<&BillwerkRouterData<&types::PaymentsAuthorizeRouterData>> for BillwerkPaymentsRequest {
+    type Error = error_stack::Report<errors::ConnectorError>;
+    fn try_from(
+        item: &BillwerkRouterData<&types::PaymentsAuthorizeRouterData>,
+    ) -> Result<Self, Self::Error> {
+        match item.router_data.request.payment_method_data.clone() {
+            api::PaymentMethodData::Card(req_card) => {
+                let card = BillwerkCard {
+                    number: req_card.card_number,
+                    expiry_month: req_card.card_exp_month,
+                    expiry_year: req_card.card_exp_year,
+                    cvc: req_card.card_cvc,
+                    complete: item.router_data.request.is_auto_capture()?,
+                };
+                Ok(Self {
+                    amount: item.amount.to_owned(),
+                    card,
+                })
+            }
+            _ => Err(errors::ConnectorError::NotImplemented("Payment methods".to_string()).into()),
+        }
+    }
+}
+
+//TODO: Fill the struct with respective fields
+// Auth Struct
+pub struct BillwerkAuthType {
+    pub(super) api_key: Secret<String>,
+}
+
+impl TryFrom<&types::ConnectorAuthType> for BillwerkAuthType {
+    type Error = error_stack::Report<errors::ConnectorError>;
+    fn try_from(auth_type: &types::ConnectorAuthType) -> Result<Self, Self::Error> {
+        match auth_type {
+            types::ConnectorAuthType::HeaderKey { api_key } => Ok(Self {
+                api_key: api_key.to_owned(),
+            }),
+            _ => Err(errors::ConnectorError::FailedToObtainAuthType.into()),
+        }
+    }
+}
+// PaymentsResponse
+//TODO: Append the remaining status flags
+#[derive(Debug, Clone, Default, Serialize, Deserialize, PartialEq)]
+#[serde(rename_all = "lowercase")]
+pub enum BillwerkPaymentStatus {
+    Succeeded,
+    Failed,
+    #[default]
+    Processing,
+}
+
+impl From<BillwerkPaymentStatus> for enums::AttemptStatus {
+    fn from(item: BillwerkPaymentStatus) -> Self {
+        match item {
+            BillwerkPaymentStatus::Succeeded => Self::Charged,
+            BillwerkPaymentStatus::Failed => Self::Failure,
+            BillwerkPaymentStatus::Processing => Self::Authorizing,
+        }
+    }
+}
+
+//TODO: Fill the struct with respective fields
+#[derive(Default, Debug, Clone, Serialize, Deserialize, PartialEq)]
+pub struct BillwerkPaymentsResponse {
+    status: BillwerkPaymentStatus,
+    id: String,
+}
+
+impl<F, T>
+    TryFrom<types::ResponseRouterData<F, BillwerkPaymentsResponse, T, types::PaymentsResponseData>>
+    for types::RouterData<F, T, types::PaymentsResponseData>
+{
+    type Error = error_stack::Report<errors::ConnectorError>;
+    fn try_from(
+        item: types::ResponseRouterData<
+            F,
+            BillwerkPaymentsResponse,
+            T,
+            types::PaymentsResponseData,
+        >,
+    ) -> Result<Self, Self::Error> {
+        Ok(Self {
+            status: enums::AttemptStatus::from(item.response.status),
+            response: Ok(types::PaymentsResponseData::TransactionResponse {
+                resource_id: types::ResponseId::ConnectorTransactionId(item.response.id),
+                redirection_data: None,
+                mandate_reference: None,
+                connector_metadata: None,
+                network_txn_id: None,
+                connector_response_reference_id: None,
+                incremental_authorization_allowed: None,
+            }),
+            ..item.data
+        })
+    }
+}
+
+//TODO: Fill the struct with respective fields
+// REFUND :
+// Type definition for RefundRequest
+#[derive(Default, Debug, Serialize)]
+pub struct BillwerkRefundRequest {
+    pub amount: i64,
+}
+
+impl<F> TryFrom<&BillwerkRouterData<&types::RefundsRouterData<F>>> for BillwerkRefundRequest {
+    type Error = error_stack::Report<errors::ConnectorError>;
+    fn try_from(
+        item: &BillwerkRouterData<&types::RefundsRouterData<F>>,
+    ) -> Result<Self, Self::Error> {
+        Ok(Self {
+            amount: item.amount.to_owned(),
+        })
+    }
+}
+
+// Type definition for Refund Response
+
+#[allow(dead_code)]
+#[derive(Debug, Serialize, Default, Deserialize, Clone)]
+pub enum RefundStatus {
+    Succeeded,
+    Failed,
+    #[default]
+    Processing,
+}
+
+impl From<RefundStatus> for enums::RefundStatus {
+    fn from(item: RefundStatus) -> Self {
+        match item {
+            RefundStatus::Succeeded => Self::Success,
+            RefundStatus::Failed => Self::Failure,
+            RefundStatus::Processing => Self::Pending,
+            //TODO: Review mapping
+        }
+    }
+}
+
+//TODO: Fill the struct with respective fields
+#[derive(Default, Debug, Clone, Serialize, Deserialize)]
+pub struct RefundResponse {
+    id: String,
+    status: RefundStatus,
+}
+
+impl TryFrom<types::RefundsResponseRouterData<api::Execute, RefundResponse>>
+    for types::RefundsRouterData<api::Execute>
+{
+    type Error = error_stack::Report<errors::ConnectorError>;
+    fn try_from(
+        item: types::RefundsResponseRouterData<api::Execute, RefundResponse>,
+    ) -> Result<Self, Self::Error> {
+        Ok(Self {
+            response: Ok(types::RefundsResponseData {
+                connector_refund_id: item.response.id.to_string(),
+                refund_status: enums::RefundStatus::from(item.response.status),
+            }),
+            ..item.data
+        })
+    }
+}
+
+impl TryFrom<types::RefundsResponseRouterData<api::RSync, RefundResponse>>
+    for types::RefundsRouterData<api::RSync>
+{
+    type Error = error_stack::Report<errors::ConnectorError>;
+    fn try_from(
+        item: types::RefundsResponseRouterData<api::RSync, RefundResponse>,
+    ) -> Result<Self, Self::Error> {
+        Ok(Self {
+            response: Ok(types::RefundsResponseData {
+                connector_refund_id: item.response.id.to_string(),
+                refund_status: enums::RefundStatus::from(item.response.status),
+            }),
+            ..item.data
+        })
+    }
+}
+
+//TODO: Fill the struct with respective fields
+#[derive(Default, Debug, Serialize, Deserialize, PartialEq)]
+pub struct BillwerkErrorResponse {
+    pub status_code: u16,
+    pub code: String,
+    pub message: String,
+    pub reason: Option<String>,
+}
diff --git a/crates/router/src/core/admin.rs b/crates/router/src/core/admin.rs
index 2f546cfa5ac..a4be66242ee 100644
--- a/crates/router/src/core/admin.rs
+++ b/crates/router/src/core/admin.rs
@@ -1739,6 +1739,10 @@ pub(crate) fn validate_auth_and_metadata_type(
             bankofamerica::transformers::BankOfAmericaAuthType::try_from(val)?;
             Ok(())
         }
+        // api_enums::Connector::Billwerk => {
+        //     billwerk::transformers::BillwerkAuthType::try_from(val)?;
+        //     Ok(())
+        // } Added as template code for future usage
         api_enums::Connector::Bitpay => {
             bitpay::transformers::BitpayAuthType::try_from(val)?;
             Ok(())
diff --git a/crates/router/src/core/payments/flows.rs b/crates/router/src/core/payments/flows.rs
index fe4a504861d..6c952dc2593 100644
--- a/crates/router/src/core/payments/flows.rs
+++ b/crates/router/src/core/payments/flows.rs
@@ -145,9 +145,9 @@ impl<const T: u8>
 }
 
 default_imp_for_complete_authorize!(
-    connector::Threedsecureio,
     connector::Aci,
     connector::Adyen,
+    connector::Billwerk,
     connector::Bitpay,
     connector::Boku,
     connector::Cashtocode,
@@ -176,6 +176,7 @@ default_imp_for_complete_authorize!(
     connector::Square,
     connector::Stax,
     connector::Stripe,
+    connector::Threedsecureio,
     connector::Trustpay,
     connector::Tsys,
     connector::Volt,
@@ -211,13 +212,13 @@ impl<const T: u8>
 {
 }
 default_imp_for_webhook_source_verification!(
-    connector::Threedsecureio,
     connector::Aci,
     connector::Adyen,
     connector::Airwallex,
     connector::Authorizedotnet,
     connector::Bambora,
     connector::Bankofamerica,
+    connector::Billwerk,
     connector::Bitpay,
     connector::Bluesnap,
     connector::Braintree,
@@ -257,6 +258,7 @@ default_imp_for_webhook_source_verification!(
     connector::Square,
     connector::Stax,
     connector::Stripe,
+    connector::Threedsecureio,
     connector::Trustpay,
     connector::Tsys,
     connector::Volt,
@@ -294,13 +296,13 @@ impl<const T: u8>
 }
 
 default_imp_for_create_customer!(
-    connector::Threedsecureio,
     connector::Aci,
     connector::Adyen,
     connector::Airwallex,
     connector::Authorizedotnet,
     connector::Bambora,
     connector::Bankofamerica,
+    connector::Billwerk,
     connector::Bitpay,
     connector::Bluesnap,
     connector::Boku,
@@ -338,6 +340,7 @@ default_imp_for_create_customer!(
     connector::Shift4,
     connector::Signifyd,
     connector::Square,
+    connector::Threedsecureio,
     connector::Trustpay,
     connector::Tsys,
     connector::Volt,
@@ -377,11 +380,11 @@ impl<const T: u8> services::ConnectorRedirectResponse for connector::DummyConnec
 }
 
 default_imp_for_connector_redirect_response!(
-    connector::Threedsecureio,
     connector::Aci,
     connector::Adyen,
     connector::Bitpay,
     connector::Bankofamerica,
+    connector::Billwerk,
     connector::Boku,
     connector::Cashtocode,
     connector::Coinbase,
@@ -410,6 +413,7 @@ default_imp_for_connector_redirect_response!(
     connector::Signifyd,
     connector::Square,
     connector::Stax,
+    connector::Threedsecureio,
     connector::Tsys,
     connector::Volt,
     connector::Wise,
@@ -429,13 +433,13 @@ macro_rules! default_imp_for_connector_request_id {
 impl<const T: u8> api::ConnectorTransactionId for connector::DummyConnector<T> {}
 
 default_imp_for_connector_request_id!(
-    connector::Threedsecureio,
     connector::Aci,
     connector::Adyen,
     connector::Airwallex,
     connector::Authorizedotnet,
     connector::Bambora,
     connector::Bankofamerica,
+    connector::Billwerk,
     connector::Bitpay,
     connector::Bluesnap,
     connector::Boku,
@@ -474,6 +478,7 @@ default_imp_for_connector_request_id!(
     connector::Square,
     connector::Stax,
     connector::Stripe,
+    connector::Threedsecureio,
     connector::Trustpay,
     connector::Tsys,
     connector::Volt,
@@ -514,13 +519,13 @@ impl<const T: u8>
 }
 
 default_imp_for_accept_dispute!(
-    connector::Threedsecureio,
     connector::Aci,
     connector::Adyen,
     connector::Airwallex,
     connector::Authorizedotnet,
     connector::Bambora,
     connector::Bankofamerica,
+    connector::Billwerk,
     connector::Bitpay,
     connector::Bluesnap,
     connector::Boku,
@@ -560,6 +565,7 @@ default_imp_for_accept_dispute!(
     connector::Square,
     connector::Stax,
     connector::Stripe,
+    connector::Threedsecureio,
     connector::Trustpay,
     connector::Tsys,
     connector::Volt,
@@ -619,13 +625,13 @@ impl<const T: u8>
 }
 
 default_imp_for_file_upload!(
-    connector::Threedsecureio,
     connector::Aci,
     connector::Adyen,
     connector::Airwallex,
     connector::Authorizedotnet,
     connector::Bambora,
     connector::Bankofamerica,
+    connector::Billwerk,
     connector::Bitpay,
     connector::Bluesnap,
     connector::Boku,
@@ -663,6 +669,7 @@ default_imp_for_file_upload!(
     connector::Signifyd,
     connector::Square,
     connector::Stax,
+    connector::Threedsecureio,
     connector::Trustpay,
     connector::Tsys,
     connector::Volt,
@@ -701,13 +708,13 @@ impl<const T: u8>
 }
 
 default_imp_for_submit_evidence!(
-    connector::Threedsecureio,
     connector::Aci,
     connector::Adyen,
     connector::Airwallex,
     connector::Authorizedotnet,
     connector::Bambora,
     connector::Bankofamerica,
+    connector::Billwerk,
     connector::Bitpay,
     connector::Bluesnap,
     connector::Boku,
@@ -745,6 +752,7 @@ default_imp_for_submit_evidence!(
     connector::Signifyd,
     connector::Square,
     connector::Stax,
+    connector::Threedsecureio,
     connector::Trustpay,
     connector::Tsys,
     connector::Volt,
@@ -783,13 +791,13 @@ impl<const T: u8>
 }
 
 default_imp_for_defend_dispute!(
-    connector::Threedsecureio,
     connector::Aci,
     connector::Adyen,
     connector::Airwallex,
     connector::Authorizedotnet,
     connector::Bambora,
     connector::Bankofamerica,
+    connector::Billwerk,
     connector::Bitpay,
     connector::Bluesnap,
     connector::Boku,
@@ -828,6 +836,7 @@ default_imp_for_defend_dispute!(
     connector::Square,
     connector::Stax,
     connector::Stripe,
+    connector::Threedsecureio,
     connector::Trustpay,
     connector::Tsys,
     connector::Volt,
@@ -866,11 +875,11 @@ impl<const T: u8>
 }
 
 default_imp_for_pre_processing_steps!(
-    connector::Threedsecureio,
     connector::Aci,
     connector::Airwallex,
     connector::Authorizedotnet,
     connector::Bambora,
+    connector::Billwerk,
     connector::Bitpay,
     connector::Bluesnap,
     connector::Boku,
@@ -905,6 +914,7 @@ default_imp_for_pre_processing_steps!(
     connector::Signifyd,
     connector::Square,
     connector::Stax,
+    connector::Threedsecureio,
     connector::Tsys,
     connector::Volt,
     connector::Wise,
@@ -925,12 +935,12 @@ macro_rules! default_imp_for_payouts {
 impl<const T: u8> api::Payouts for connector::DummyConnector<T> {}
 
 default_imp_for_payouts!(
-    connector::Threedsecureio,
     connector::Aci,
     connector::Airwallex,
     connector::Authorizedotnet,
     connector::Bambora,
     connector::Bankofamerica,
+    connector::Billwerk,
     connector::Bitpay,
     connector::Bluesnap,
     connector::Boku,
@@ -971,6 +981,7 @@ default_imp_for_payouts!(
     connector::Stax,
     connector::Stripe,
     connector::Shift4,
+    connector::Threedsecureio,
     connector::Trustpay,
     connector::Tsys,
     connector::Volt,
@@ -1008,12 +1019,12 @@ impl<const T: u8>
 
 #[cfg(feature = "payouts")]
 default_imp_for_payouts_create!(
-    connector::Threedsecureio,
     connector::Aci,
     connector::Airwallex,
     connector::Authorizedotnet,
     connector::Bambora,
     connector::Bankofamerica,
+    connector::Billwerk,
     connector::Bitpay,
     connector::Bluesnap,
     connector::Boku,
@@ -1054,6 +1065,7 @@ default_imp_for_payouts_create!(
     connector::Stax,
     connector::Stripe,
     connector::Shift4,
+    connector::Threedsecureio,
     connector::Trustpay,
     connector::Tsys,
     connector::Volt,
@@ -1094,12 +1106,12 @@ impl<const T: u8>
 
 #[cfg(feature = "payouts")]
 default_imp_for_payouts_eligibility!(
-    connector::Threedsecureio,
     connector::Aci,
     connector::Airwallex,
     connector::Authorizedotnet,
     connector::Bambora,
     connector::Bankofamerica,
+    connector::Billwerk,
     connector::Bitpay,
     connector::Bluesnap,
     connector::Boku,
@@ -1140,6 +1152,7 @@ default_imp_for_payouts_eligibility!(
     connector::Stax,
     connector::Stripe,
     connector::Shift4,
+    connector::Threedsecureio,
     connector::Trustpay,
     connector::Tsys,
     connector::Volt,
@@ -1177,12 +1190,12 @@ impl<const T: u8>
 
 #[cfg(feature = "payouts")]
 default_imp_for_payouts_fulfill!(
-    connector::Threedsecureio,
     connector::Aci,
     connector::Airwallex,
     connector::Authorizedotnet,
     connector::Bambora,
     connector::Bankofamerica,
+    connector::Billwerk,
     connector::Bitpay,
     connector::Bluesnap,
     connector::Boku,
@@ -1223,6 +1236,7 @@ default_imp_for_payouts_fulfill!(
     connector::Stax,
     connector::Stripe,
     connector::Shift4,
+    connector::Threedsecureio,
     connector::Trustpay,
     connector::Tsys,
     connector::Volt,
@@ -1260,12 +1274,12 @@ impl<const T: u8>
 
 #[cfg(feature = "payouts")]
 default_imp_for_payouts_cancel!(
-    connector::Threedsecureio,
     connector::Aci,
     connector::Airwallex,
     connector::Authorizedotnet,
     connector::Bambora,
     connector::Bankofamerica,
+    connector::Billwerk,
     connector::Bitpay,
     connector::Bluesnap,
     connector::Boku,
@@ -1306,6 +1320,7 @@ default_imp_for_payouts_cancel!(
     connector::Stax,
     connector::Stripe,
     connector::Shift4,
+    connector::Threedsecureio,
     connector::Trustpay,
     connector::Tsys,
     connector::Volt,
@@ -1343,13 +1358,13 @@ impl<const T: u8>
 
 #[cfg(feature = "payouts")]
 default_imp_for_payouts_quote!(
-    connector::Threedsecureio,
     connector::Aci,
     connector::Adyen,
     connector::Airwallex,
     connector::Authorizedotnet,
     connector::Bambora,
     connector::Bankofamerica,
+    connector::Billwerk,
     connector::Bitpay,
     connector::Bluesnap,
     connector::Boku,
@@ -1390,6 +1405,7 @@ default_imp_for_payouts_quote!(
     connector::Stax,
     connector::Stripe,
     connector::Shift4,
+    connector::Threedsecureio,
     connector::Trustpay,
     connector::Tsys,
     connector::Volt,
@@ -1427,13 +1443,13 @@ impl<const T: u8>
 
 #[cfg(feature = "payouts")]
 default_imp_for_payouts_recipient!(
-    connector::Threedsecureio,
     connector::Aci,
     connector::Adyen,
     connector::Airwallex,
     connector::Authorizedotnet,
     connector::Bambora,
     connector::Bankofamerica,
+    connector::Billwerk,
     connector::Bitpay,
     connector::Bluesnap,
     connector::Boku,
@@ -1474,6 +1490,7 @@ default_imp_for_payouts_recipient!(
     connector::Stax,
     connector::Stripe,
     connector::Shift4,
+    connector::Threedsecureio,
     connector::Trustpay,
     connector::Tsys,
     connector::Volt,
@@ -1510,13 +1527,13 @@ impl<const T: u8>
 }
 
 default_imp_for_approve!(
-    connector::Threedsecureio,
     connector::Aci,
     connector::Adyen,
     connector::Airwallex,
     connector::Authorizedotnet,
     connector::Bambora,
     connector::Bankofamerica,
+    connector::Billwerk,
     connector::Bitpay,
     connector::Bluesnap,
     connector::Boku,
@@ -1557,6 +1574,7 @@ default_imp_for_approve!(
     connector::Stax,
     connector::Stripe,
     connector::Shift4,
+    connector::Threedsecureio,
     connector::Trustpay,
     connector::Tsys,
     connector::Volt,
@@ -1594,13 +1612,13 @@ impl<const T: u8>
 }
 
 default_imp_for_reject!(
-    connector::Threedsecureio,
     connector::Aci,
     connector::Adyen,
     connector::Airwallex,
     connector::Authorizedotnet,
     connector::Bambora,
     connector::Bankofamerica,
+    connector::Billwerk,
     connector::Bitpay,
     connector::Bluesnap,
     connector::Boku,
@@ -1641,6 +1659,7 @@ default_imp_for_reject!(
     connector::Stax,
     connector::Stripe,
     connector::Shift4,
+    connector::Threedsecureio,
     connector::Trustpay,
     connector::Tsys,
     connector::Volt,
@@ -1662,13 +1681,13 @@ macro_rules! default_imp_for_fraud_check {
 impl<const T: u8> api::FraudCheck for connector::DummyConnector<T> {}
 
 default_imp_for_fraud_check!(
-    connector::Threedsecureio,
     connector::Aci,
     connector::Adyen,
     connector::Airwallex,
     connector::Authorizedotnet,
     connector::Bambora,
     connector::Bankofamerica,
+    connector::Billwerk,
     connector::Bitpay,
     connector::Bluesnap,
     connector::Boku,
@@ -1707,6 +1726,7 @@ default_imp_for_fraud_check!(
     connector::Stax,
     connector::Stripe,
     connector::Shift4,
+    connector::Threedsecureio,
     connector::Trustpay,
     connector::Tsys,
     connector::Volt,
@@ -1746,13 +1766,13 @@ impl<const T: u8>
 
 #[cfg(feature = "frm")]
 default_imp_for_frm_sale!(
-    connector::Threedsecureio,
     connector::Aci,
     connector::Adyen,
     connector::Airwallex,
     connector::Authorizedotnet,
     connector::Bambora,
     connector::Bankofamerica,
+    connector::Billwerk,
     connector::Bitpay,
     connector::Bluesnap,
     connector::Boku,
@@ -1791,6 +1811,7 @@ default_imp_for_frm_sale!(
     connector::Stax,
     connector::Stripe,
     connector::Shift4,
+    connector::Threedsecureio,
     connector::Trustpay,
     connector::Tsys,
     connector::Volt,
@@ -1830,13 +1851,13 @@ impl<const T: u8>
 
 #[cfg(feature = "frm")]
 default_imp_for_frm_checkout!(
-    connector::Threedsecureio,
     connector::Aci,
     connector::Adyen,
     connector::Airwallex,
     connector::Authorizedotnet,
     connector::Bambora,
     connector::Bankofamerica,
+    connector::Billwerk,
     connector::Bitpay,
     connector::Bluesnap,
     connector::Boku,
@@ -1875,6 +1896,7 @@ default_imp_for_frm_checkout!(
     connector::Stax,
     connector::Stripe,
     connector::Shift4,
+    connector::Threedsecureio,
     connector::Trustpay,
     connector::Tsys,
     connector::Volt,
@@ -1914,13 +1936,13 @@ impl<const T: u8>
 
 #[cfg(feature = "frm")]
 default_imp_for_frm_transaction!(
-    connector::Threedsecureio,
     connector::Aci,
     connector::Adyen,
     connector::Airwallex,
     connector::Authorizedotnet,
     connector::Bambora,
     connector::Bankofamerica,
+    connector::Billwerk,
     connector::Bitpay,
     connector::Bluesnap,
     connector::Boku,
@@ -1959,6 +1981,7 @@ default_imp_for_frm_transaction!(
     connector::Stax,
     connector::Stripe,
     connector::Shift4,
+    connector::Threedsecureio,
     connector::Trustpay,
     connector::Tsys,
     connector::Volt,
@@ -1998,13 +2021,13 @@ impl<const T: u8>
 
 #[cfg(feature = "frm")]
 default_imp_for_frm_fulfillment!(
-    connector::Threedsecureio,
     connector::Aci,
     connector::Adyen,
     connector::Airwallex,
     connector::Authorizedotnet,
     connector::Bambora,
     connector::Bankofamerica,
+    connector::Billwerk,
     connector::Bitpay,
     connector::Bluesnap,
     connector::Boku,
@@ -2043,6 +2066,7 @@ default_imp_for_frm_fulfillment!(
     connector::Stax,
     connector::Stripe,
     connector::Shift4,
+    connector::Threedsecureio,
     connector::Trustpay,
     connector::Tsys,
     connector::Volt,
@@ -2082,13 +2106,13 @@ impl<const T: u8>
 
 #[cfg(feature = "frm")]
 default_imp_for_frm_record_return!(
-    connector::Threedsecureio,
     connector::Aci,
     connector::Adyen,
     connector::Airwallex,
     connector::Authorizedotnet,
     connector::Bambora,
     connector::Bankofamerica,
+    connector::Billwerk,
     connector::Bitpay,
     connector::Bluesnap,
     connector::Boku,
@@ -2127,6 +2151,7 @@ default_imp_for_frm_record_return!(
     connector::Stax,
     connector::Stripe,
     connector::Shift4,
+    connector::Threedsecureio,
     connector::Trustpay,
     connector::Tsys,
     connector::Volt,
@@ -2164,13 +2189,13 @@ impl<const T: u8>
 }
 
 default_imp_for_incremental_authorization!(
-    connector::Threedsecureio,
     connector::Aci,
     connector::Adyen,
     connector::Airwallex,
     connector::Authorizedotnet,
     connector::Bambora,
     connector::Bankofamerica,
+    connector::Billwerk,
     connector::Bitpay,
     connector::Bluesnap,
     connector::Boku,
@@ -2210,6 +2235,7 @@ default_imp_for_incremental_authorization!(
     connector::Stax,
     connector::Stripe,
     connector::Shift4,
+    connector::Threedsecureio,
     connector::Trustpay,
     connector::Tsys,
     connector::Volt,
@@ -2245,13 +2271,13 @@ impl<const T: u8>
 {
 }
 default_imp_for_revoking_mandates!(
-    connector::Threedsecureio,
     connector::Aci,
     connector::Adyen,
     connector::Airwallex,
     connector::Authorizedotnet,
     connector::Bambora,
     connector::Bankofamerica,
+    connector::Billwerk,
     connector::Bitpay,
     connector::Bluesnap,
     connector::Boku,
@@ -2290,6 +2316,7 @@ default_imp_for_revoking_mandates!(
     connector::Stax,
     connector::Stripe,
     connector::Shift4,
+    connector::Threedsecureio,
     connector::Trustpay,
     connector::Tsys,
     connector::Volt,
@@ -2373,6 +2400,7 @@ default_imp_for_connector_authentication!(
     connector::Authorizedotnet,
     connector::Bambora,
     connector::Bankofamerica,
+    connector::Billwerk,
     connector::Bitpay,
     connector::Bluesnap,
     connector::Boku,
diff --git a/crates/router/src/types/api.rs b/crates/router/src/types/api.rs
index cd9eee46eec..95a0989ac2b 100644
--- a/crates/router/src/types/api.rs
+++ b/crates/router/src/types/api.rs
@@ -328,6 +328,7 @@ impl ConnectorData {
                 enums::Connector::Authorizedotnet => Ok(Box::new(&connector::Authorizedotnet)),
                 enums::Connector::Bambora => Ok(Box::new(&connector::Bambora)),
                 enums::Connector::Bankofamerica => Ok(Box::new(&connector::Bankofamerica)),
+                // enums::Connector::Billwerk => Ok(Box::new(&connector::Billwerk)), Added as template code for future usage
                 enums::Connector::Bitpay => Ok(Box::new(&connector::Bitpay)),
                 enums::Connector::Bluesnap => Ok(Box::new(&connector::Bluesnap)),
                 enums::Connector::Boku => Ok(Box::new(&connector::Boku)),
diff --git a/crates/router/src/types/transformers.rs b/crates/router/src/types/transformers.rs
index 29774be91af..2f0c9479914 100644
--- a/crates/router/src/types/transformers.rs
+++ b/crates/router/src/types/transformers.rs
@@ -188,6 +188,7 @@ impl ForeignTryFrom<api_enums::Connector> for common_enums::RoutableConnectors {
             api_enums::Connector::Authorizedotnet => Self::Authorizedotnet,
             api_enums::Connector::Bambora => Self::Bambora,
             api_enums::Connector::Bankofamerica => Self::Bankofamerica,
+            // api_enums::Connector::Billwerk => Self::Billwerk, Added as template code for future usage
             api_enums::Connector::Bitpay => Self::Bitpay,
             api_enums::Connector::Bluesnap => Self::Bluesnap,
             api_enums::Connector::Boku => Self::Boku,
diff --git a/crates/router/tests/connectors/billwerk.rs b/crates/router/tests/connectors/billwerk.rs
new file mode 100644
index 00000000000..1dec066e5d2
--- /dev/null
+++ b/crates/router/tests/connectors/billwerk.rs
@@ -0,0 +1,421 @@
+use masking::Secret;
+use router::types::{self, api, storage::enums};
+use test_utils::connector_auth;
+
+use crate::utils::{self, ConnectorActions};
+
+#[derive(Clone, Copy)]
+struct BillwerkTest;
+impl ConnectorActions for BillwerkTest {}
+impl utils::Connector for BillwerkTest {
+    fn get_data(&self) -> types::api::ConnectorData {
+        use router::connector::Billwerk;
+        types::api::ConnectorData {
+            connector: Box::new(&Billwerk),
+            // Added as Dummy connector as template code is added for future usage
+            connector_name: types::Connector::DummyConnector1,
+            get_token: types::api::GetToken::Connector,
+            merchant_connector_id: None,
+        }
+    }
+
+    fn get_auth_token(&self) -> types::ConnectorAuthType {
+        utils::to_connector_auth_type(
+            connector_auth::ConnectorAuthentication::new()
+                .billwerk
+                .expect("Missing connector authentication configuration")
+                .into(),
+        )
+    }
+
+    fn get_name(&self) -> String {
+        "billwerk".to_string()
+    }
+}
+
+static CONNECTOR: BillwerkTest = BillwerkTest {};
+
+fn get_default_payment_info() -> Option<utils::PaymentInfo> {
+    None
+}
+
+fn payment_method_details() -> Option<types::PaymentsAuthorizeData> {
+    None
+}
+
+// Cards Positive Tests
+// Creates a payment using the manual capture flow (Non 3DS).
+#[actix_web::test]
+async fn should_only_authorize_payment() {
+    let response = CONNECTOR
+        .authorize_payment(payment_method_details(), get_default_payment_info())
+        .await
+        .expect("Authorize payment response");
+    assert_eq!(response.status, enums::AttemptStatus::Authorized);
+}
+
+// Captures a payment using the manual capture flow (Non 3DS).
+#[actix_web::test]
+async fn should_capture_authorized_payment() {
+    let response = CONNECTOR
+        .authorize_and_capture_payment(payment_method_details(), None, get_default_payment_info())
+        .await
+        .expect("Capture payment response");
+    assert_eq!(response.status, enums::AttemptStatus::Charged);
+}
+
+// Partially captures a payment using the manual capture flow (Non 3DS).
+#[actix_web::test]
+async fn should_partially_capture_authorized_payment() {
+    let response = CONNECTOR
+        .authorize_and_capture_payment(
+            payment_method_details(),
+            Some(types::PaymentsCaptureData {
+                amount_to_capture: 50,
+                ..utils::PaymentCaptureType::default().0
+            }),
+            get_default_payment_info(),
+        )
+        .await
+        .expect("Capture payment response");
+    assert_eq!(response.status, enums::AttemptStatus::Charged);
+}
+
+// Synchronizes a payment using the manual capture flow (Non 3DS).
+#[actix_web::test]
+async fn should_sync_authorized_payment() {
+    let authorize_response = CONNECTOR
+        .authorize_payment(payment_method_details(), get_default_payment_info())
+        .await
+        .expect("Authorize payment response");
+    let txn_id = utils::get_connector_transaction_id(authorize_response.response);
+    let response = CONNECTOR
+        .psync_retry_till_status_matches(
+            enums::AttemptStatus::Authorized,
+            Some(types::PaymentsSyncData {
+                connector_transaction_id: router::types::ResponseId::ConnectorTransactionId(
+                    txn_id.unwrap(),
+                ),
+                ..Default::default()
+            }),
+            get_default_payment_info(),
+        )
+        .await
+        .expect("PSync response");
+    assert_eq!(response.status, enums::AttemptStatus::Authorized,);
+}
+
+// Voids a payment using the manual capture flow (Non 3DS).
+#[actix_web::test]
+async fn should_void_authorized_payment() {
+    let response = CONNECTOR
+        .authorize_and_void_payment(
+            payment_method_details(),
+            Some(types::PaymentsCancelData {
+                connector_transaction_id: String::from(""),
+                cancellation_reason: Some("requested_by_customer".to_string()),
+                ..Default::default()
+            }),
+            get_default_payment_info(),
+        )
+        .await
+        .expect("Void payment response");
+    assert_eq!(response.status, enums::AttemptStatus::Voided);
+}
+
+// Refunds a payment using the manual capture flow (Non 3DS).
+#[actix_web::test]
+async fn should_refund_manually_captured_payment() {
+    let response = CONNECTOR
+        .capture_payment_and_refund(
+            payment_method_details(),
+            None,
+            None,
+            get_default_payment_info(),
+        )
+        .await
+        .unwrap();
+    assert_eq!(
+        response.response.unwrap().refund_status,
+        enums::RefundStatus::Success,
+    );
+}
+
+// Partially refunds a payment using the manual capture flow (Non 3DS).
+#[actix_web::test]
+async fn should_partially_refund_manually_captured_payment() {
+    let response = CONNECTOR
+        .capture_payment_and_refund(
+            payment_method_details(),
+            None,
+            Some(types::RefundsData {
+                refund_amount: 50,
+                ..utils::PaymentRefundType::default().0
+            }),
+            get_default_payment_info(),
+        )
+        .await
+        .unwrap();
+    assert_eq!(
+        response.response.unwrap().refund_status,
+        enums::RefundStatus::Success,
+    );
+}
+
+// Synchronizes a refund using the manual capture flow (Non 3DS).
+#[actix_web::test]
+async fn should_sync_manually_captured_refund() {
+    let refund_response = CONNECTOR
+        .capture_payment_and_refund(
+            payment_method_details(),
+            None,
+            None,
+            get_default_payment_info(),
+        )
+        .await
+        .unwrap();
+    let response = CONNECTOR
+        .rsync_retry_till_status_matches(
+            enums::RefundStatus::Success,
+            refund_response.response.unwrap().connector_refund_id,
+            None,
+            get_default_payment_info(),
+        )
+        .await
+        .unwrap();
+    assert_eq!(
+        response.response.unwrap().refund_status,
+        enums::RefundStatus::Success,
+    );
+}
+
+// Creates a payment using the automatic capture flow (Non 3DS).
+#[actix_web::test]
+async fn should_make_payment() {
+    let authorize_response = CONNECTOR
+        .make_payment(payment_method_details(), get_default_payment_info())
+        .await
+        .unwrap();
+    assert_eq!(authorize_response.status, enums::AttemptStatus::Charged);
+}
+
+// Synchronizes a payment using the automatic capture flow (Non 3DS).
+#[actix_web::test]
+async fn should_sync_auto_captured_payment() {
+    let authorize_response = CONNECTOR
+        .make_payment(payment_method_details(), get_default_payment_info())
+        .await
+        .unwrap();
+    assert_eq!(authorize_response.status, enums::AttemptStatus::Charged);
+    let txn_id = utils::get_connector_transaction_id(authorize_response.response);
+    assert_ne!(txn_id, None, "Empty connector transaction id");
+    let response = CONNECTOR
+        .psync_retry_till_status_matches(
+            enums::AttemptStatus::Charged,
+            Some(types::PaymentsSyncData {
+                connector_transaction_id: router::types::ResponseId::ConnectorTransactionId(
+                    txn_id.unwrap(),
+                ),
+                capture_method: Some(enums::CaptureMethod::Automatic),
+                ..Default::default()
+            }),
+            get_default_payment_info(),
+        )
+        .await
+        .unwrap();
+    assert_eq!(response.status, enums::AttemptStatus::Charged,);
+}
+
+// Refunds a payment using the automatic capture flow (Non 3DS).
+#[actix_web::test]
+async fn should_refund_auto_captured_payment() {
+    let response = CONNECTOR
+        .make_payment_and_refund(payment_method_details(), None, get_default_payment_info())
+        .await
+        .unwrap();
+    assert_eq!(
+        response.response.unwrap().refund_status,
+        enums::RefundStatus::Success,
+    );
+}
+
+// Partially refunds a payment using the automatic capture flow (Non 3DS).
+#[actix_web::test]
+async fn should_partially_refund_succeeded_payment() {
+    let refund_response = CONNECTOR
+        .make_payment_and_refund(
+            payment_method_details(),
+            Some(types::RefundsData {
+                refund_amount: 50,
+                ..utils::PaymentRefundType::default().0
+            }),
+            get_default_payment_info(),
+        )
+        .await
+        .unwrap();
+    assert_eq!(
+        refund_response.response.unwrap().refund_status,
+        enums::RefundStatus::Success,
+    );
+}
+
+// Creates multiple refunds against a payment using the automatic capture flow (Non 3DS).
+#[actix_web::test]
+async fn should_refund_succeeded_payment_multiple_times() {
+    CONNECTOR
+        .make_payment_and_multiple_refund(
+            payment_method_details(),
+            Some(types::RefundsData {
+                refund_amount: 50,
+                ..utils::PaymentRefundType::default().0
+            }),
+            get_default_payment_info(),
+        )
+        .await;
+}
+
+// Synchronizes a refund using the automatic capture flow (Non 3DS).
+#[actix_web::test]
+async fn should_sync_refund() {
+    let refund_response = CONNECTOR
+        .make_payment_and_refund(payment_method_details(), None, get_default_payment_info())
+        .await
+        .unwrap();
+    let response = CONNECTOR
+        .rsync_retry_till_status_matches(
+            enums::RefundStatus::Success,
+            refund_response.response.unwrap().connector_refund_id,
+            None,
+            get_default_payment_info(),
+        )
+        .await
+        .unwrap();
+    assert_eq!(
+        response.response.unwrap().refund_status,
+        enums::RefundStatus::Success,
+    );
+}
+
+// Cards Negative scenerios
+// Creates a payment with incorrect CVC.
+#[actix_web::test]
+async fn should_fail_payment_for_incorrect_cvc() {
+    let response = CONNECTOR
+        .make_payment(
+            Some(types::PaymentsAuthorizeData {
+                payment_method_data: types::api::PaymentMethodData::Card(api::Card {
+                    card_cvc: Secret::new("12345".to_string()),
+                    ..utils::CCardType::default().0
+                }),
+                ..utils::PaymentAuthorizeType::default().0
+            }),
+            get_default_payment_info(),
+        )
+        .await
+        .unwrap();
+    assert_eq!(
+        response.response.unwrap_err().message,
+        "Your card's security code is invalid.".to_string(),
+    );
+}
+
+// Creates a payment with incorrect expiry month.
+#[actix_web::test]
+async fn should_fail_payment_for_invalid_exp_month() {
+    let response = CONNECTOR
+        .make_payment(
+            Some(types::PaymentsAuthorizeData {
+                payment_method_data: types::api::PaymentMethodData::Card(api::Card {
+                    card_exp_month: Secret::new("20".to_string()),
+                    ..utils::CCardType::default().0
+                }),
+                ..utils::PaymentAuthorizeType::default().0
+            }),
+            get_default_payment_info(),
+        )
+        .await
+        .unwrap();
+    assert_eq!(
+        response.response.unwrap_err().message,
+        "Your card's expiration month is invalid.".to_string(),
+    );
+}
+
+// Creates a payment with incorrect expiry year.
+#[actix_web::test]
+async fn should_fail_payment_for_incorrect_expiry_year() {
+    let response = CONNECTOR
+        .make_payment(
+            Some(types::PaymentsAuthorizeData {
+                payment_method_data: types::api::PaymentMethodData::Card(api::Card {
+                    card_exp_year: Secret::new("2000".to_string()),
+                    ..utils::CCardType::default().0
+                }),
+                ..utils::PaymentAuthorizeType::default().0
+            }),
+            get_default_payment_info(),
+        )
+        .await
+        .unwrap();
+    assert_eq!(
+        response.response.unwrap_err().message,
+        "Your card's expiration year is invalid.".to_string(),
+    );
+}
+
+// Voids a payment using automatic capture flow (Non 3DS).
+#[actix_web::test]
+async fn should_fail_void_payment_for_auto_capture() {
+    let authorize_response = CONNECTOR
+        .make_payment(payment_method_details(), get_default_payment_info())
+        .await
+        .unwrap();
+    assert_eq!(authorize_response.status, enums::AttemptStatus::Charged);
+    let txn_id = utils::get_connector_transaction_id(authorize_response.response);
+    assert_ne!(txn_id, None, "Empty connector transaction id");
+    let void_response = CONNECTOR
+        .void_payment(txn_id.unwrap(), None, get_default_payment_info())
+        .await
+        .unwrap();
+    assert_eq!(
+        void_response.response.unwrap_err().message,
+        "You cannot cancel this PaymentIntent because it has a status of succeeded."
+    );
+}
+
+// Captures a payment using invalid connector payment id.
+#[actix_web::test]
+async fn should_fail_capture_for_invalid_payment() {
+    let capture_response = CONNECTOR
+        .capture_payment("123456789".to_string(), None, get_default_payment_info())
+        .await
+        .unwrap();
+    assert_eq!(
+        capture_response.response.unwrap_err().message,
+        String::from("No such payment_intent: '123456789'")
+    );
+}
+
+// Refunds a payment with refund amount higher than payment amount.
+#[actix_web::test]
+async fn should_fail_for_refund_amount_higher_than_payment_amount() {
+    let response = CONNECTOR
+        .make_payment_and_refund(
+            payment_method_details(),
+            Some(types::RefundsData {
+                refund_amount: 150,
+                ..utils::PaymentRefundType::default().0
+            }),
+            get_default_payment_info(),
+        )
+        .await
+        .unwrap();
+    assert_eq!(
+        response.response.unwrap_err().message,
+        "Refund amount (₹1.50) is greater than charge amount (₹1.00)",
+    );
+}
+
+// Connector dependent test cases goes here
+
+// [#478]: add unit tests for non 3DS, wallets & webhooks in connector tests
diff --git a/crates/router/tests/connectors/main.rs b/crates/router/tests/connectors/main.rs
index 8db743d6098..eb428a36cb9 100644
--- a/crates/router/tests/connectors/main.rs
+++ b/crates/router/tests/connectors/main.rs
@@ -13,6 +13,8 @@ mod authorizedotnet;
 mod bambora;
 #[cfg(feature = "dummy_connector")]
 mod bankofamerica;
+#[cfg(feature = "dummy_connector")]
+mod billwerk;
 mod bitpay;
 mod bluesnap;
 mod boku;
diff --git a/crates/router/tests/connectors/sample_auth.toml b/crates/router/tests/connectors/sample_auth.toml
index 3f78ff7f491..bd17f279c2d 100644
--- a/crates/router/tests/connectors/sample_auth.toml
+++ b/crates/router/tests/connectors/sample_auth.toml
@@ -198,3 +198,7 @@ key1= "Trankey"
 [threedsecureio]
 api_key="API Key"
 
+
+
+[billwerk]
+api_key="API Key"
diff --git a/crates/test_utils/src/connector_auth.rs b/crates/test_utils/src/connector_auth.rs
index a2753a2c517..34a5e35928d 100644
--- a/crates/test_utils/src/connector_auth.rs
+++ b/crates/test_utils/src/connector_auth.rs
@@ -18,6 +18,7 @@ pub struct ConnectorAuthentication {
     pub authorizedotnet: Option<BodyKey>,
     pub bambora: Option<BodyKey>,
     pub bankofamerica: Option<SignatureKey>,
+    pub billwerk: Option<HeaderKey>,
     pub bitpay: Option<HeaderKey>,
     pub bluesnap: Option<BodyKey>,
     pub boku: Option<BodyKey>,
diff --git a/loadtest/config/development.toml b/loadtest/config/development.toml
index 6dfd921a251..9a9a7606ca1 100644
--- a/loadtest/config/development.toml
+++ b/loadtest/config/development.toml
@@ -71,6 +71,7 @@ applepay.base_url = "https://apple-pay-gateway.apple.com/"
 authorizedotnet.base_url = "https://apitest.authorize.net/xml/v1/request.api"
 bambora.base_url = "https://api.na.bambora.com"
 bankofamerica.base_url = "https://apitest.merchant-services.bankofamerica.com/"
+billwerk.base_url = "https://api.reepay.com/"
 bitpay.base_url = "https://test.bitpay.com"
 bluesnap.base_url = "https://sandbox.bluesnap.com/"
 bluesnap.secondary_base_url = "https://sandpay.bluesnap.com/"
@@ -142,6 +143,7 @@ cards = [
     "authorizedotnet",
     "bambora",
     "bankofamerica",
+    "billwerk",
     "bitpay",
     "bluesnap",
     "boku",
diff --git a/scripts/add_connector.sh b/scripts/add_connector.sh
index 2be49d123b0..9098be40e21 100755
--- a/scripts/add_connector.sh
+++ b/scripts/add_connector.sh
@@ -6,7 +6,7 @@ function find_prev_connector() {
     git checkout $self
     cp $self $self.tmp
     # Add new connector to existing list and sort it
-    connectors=(aci adyen airwallex applepay authorizedotnet bambora bankofamerica bitpay bluesnap boku braintree cashtocode checkout coinbase cryptopay cybersource dlocal dummyconnector fiserv forte globalpay globepay gocardless helcim iatapay klarna mollie multisafepay nexinets noon nuvei opayo opennode payeezy payme paypal payu placetopay powertranz prophetpay rapyd shift4 square stax stripe threedsecureio trustpay tsys volt wise worldline worldpay "$1")
+    connectors=(aci adyen airwallex applepay authorizedotnet bambora bankofamerica billwerk bitpay bluesnap boku braintree cashtocode checkout coinbase cryptopay cybersource dlocal dummyconnector fiserv forte globalpay globepay gocardless helcim iatapay klarna mollie multisafepay nexinets noon nuvei opayo opennode payeezy payme paypal payu placetopay powertranz prophetpay rapyd shift4 square stax stripe threedsecureio trustpay tsys volt wise worldline worldpay "$1")
     IFS=$'\n' sorted=($(sort <<<"${connectors[*]}")); unset IFS
     res=`echo ${sorted[@]}`
     sed -i'' -e "s/^    connectors=.*/    connectors=($res \"\$1\")/" $self.tmp