diff --git a/crates/api_models/src/payments.rs b/crates/api_models/src/payments.rs
index 819e67a73b..8270ddaf3f 100644
--- a/crates/api_models/src/payments.rs
+++ b/crates/api_models/src/payments.rs
@@ -3776,6 +3776,8 @@ pub struct OrderDetailsWithAmount {
     pub product_id: Option<String>,
     /// Category of the product that is being purchased
     pub category: Option<String>,
+    /// Sub category of the product that is being purchased
+    pub sub_category: Option<String>,
     /// Brand of the product that is being purchased
     pub brand: Option<String>,
     /// Type of the product that is being purchased
@@ -3810,6 +3812,8 @@ pub struct OrderDetails {
     pub product_id: Option<String>,
     /// Category of the product that is being purchased
     pub category: Option<String>,
+    /// Sub category of the product that is being purchased
+    pub sub_category: Option<String>,
     /// Brand of the product that is being purchased
     pub brand: Option<String>,
     /// Type of the product that is being purchased
diff --git a/crates/router/src/connector/signifyd.rs b/crates/router/src/connector/signifyd.rs
index c28fbc0550..550e1ae30a 100644
--- a/crates/router/src/connector/signifyd.rs
+++ b/crates/router/src/connector/signifyd.rs
@@ -1,6 +1,7 @@
 pub mod transformers;
 use std::fmt::Debug;
 
+use base64::Engine;
 #[cfg(feature = "frm")]
 use common_utils::request::RequestContent;
 use error_stack::{report, ResultExt};
@@ -9,6 +10,7 @@ use transformers as signifyd;
 
 use crate::{
     configs::settings,
+    consts,
     core::errors::{self, CustomResult},
     headers,
     services::{self, request, ConnectorIntegration, ConnectorValidation},
@@ -65,7 +67,10 @@ impl ConnectorCommon for Signifyd {
     ) -> CustomResult<Vec<(String, request::Maskable<String>)>, errors::ConnectorError> {
         let auth = signifyd::SignifydAuthType::try_from(auth_type)
             .change_context(errors::ConnectorError::FailedToObtainAuthType)?;
-        let auth_api_key = format!("Basic {}", auth.api_key.peek());
+        let auth_api_key = format!(
+            "Basic {}",
+            consts::BASE64_ENGINE.encode(auth.api_key.peek())
+        );
 
         Ok(vec![(
             headers::AUTHORIZATION.to_string(),
diff --git a/crates/router/src/connector/signifyd/transformers/api.rs b/crates/router/src/connector/signifyd/transformers/api.rs
index 684c789be6..b56c7f7011 100644
--- a/crates/router/src/connector/signifyd/transformers/api.rs
+++ b/crates/router/src/connector/signifyd/transformers/api.rs
@@ -1,6 +1,6 @@
 use bigdecimal::ToPrimitive;
-use common_utils::pii::Email;
-use error_stack;
+use common_utils::{ext_traits::ValueExt, pii::Email};
+use error_stack::{self, ResultExt};
 use masking::Secret;
 use serde::{Deserialize, Serialize};
 use time::PrimitiveDateTime;
@@ -35,10 +35,14 @@ pub struct Purchase {
     total_price: i64,
     products: Vec<Products>,
     shipments: Shipments,
+    currency: Option<common_enums::Currency>,
+    total_shipping_cost: Option<i64>,
+    confirmation_email: Option<Email>,
+    confirmation_phone: Option<Secret<String>>,
 }
 
 #[derive(Debug, Serialize, Eq, PartialEq, Deserialize, Clone)]
-#[serde(rename_all = "SCREAMING_SNAKE_CASE")]
+#[serde(rename_all(serialize = "SCREAMING_SNAKE_CASE", deserialize = "snake_case"))]
 pub enum OrderChannel {
     Web,
     Phone,
@@ -51,17 +55,36 @@ pub enum OrderChannel {
     Mit,
 }
 
+#[derive(Debug, Serialize, Eq, PartialEq, Deserialize, Clone)]
+#[serde(rename_all(serialize = "SCREAMING_SNAKE_CASE", deserialize = "snake_case"))]
+pub enum FulfillmentMethod {
+    Delivery,
+    CounterPickup,
+    CubsidePickup,
+    LockerPickup,
+    StandardShipping,
+    ExpeditedShipping,
+    GasPickup,
+    ScheduledDelivery,
+}
+
 #[derive(Debug, Serialize, Eq, PartialEq, Clone)]
 #[serde(rename_all = "camelCase")]
 pub struct Products {
     item_name: String,
     item_price: i64,
     item_quantity: i32,
+    item_id: Option<String>,
+    item_category: Option<String>,
+    item_sub_category: Option<String>,
+    item_is_digital: Option<bool>,
 }
 
 #[derive(Debug, Serialize, Eq, PartialEq, Clone)]
+#[serde(rename_all = "camelCase")]
 pub struct Shipments {
     destination: Destination,
+    fulfillment_method: Option<FulfillmentMethod>,
 }
 
 #[derive(Debug, Deserialize, Serialize, Eq, PartialEq, Clone)]
@@ -84,12 +107,32 @@ pub struct Address {
     country_code: common_enums::CountryAlpha2,
 }
 
+#[derive(Debug, Serialize, Eq, PartialEq, Deserialize, Clone)]
+#[serde(rename_all(serialize = "SCREAMING_SNAKE_CASE", deserialize = "snake_case"))]
+pub enum CoverageRequests {
+    Fraud, // use when you need a financial guarantee for Payment Fraud.
+    Inr,   // use when you need a financial guarantee for Item Not Received.
+    Snad, // use when you need a financial guarantee for fraud alleging items are Significantly Not As Described.
+    All,  // use when you need a financial guarantee on all chargebacks.
+    None, // use when you do not need a financial guarantee. Suggested actions in decision.checkpointAction are recommendations.
+}
+
 #[derive(Debug, Serialize, Eq, PartialEq)]
 #[serde(rename_all = "camelCase")]
 pub struct SignifydPaymentsSaleRequest {
     order_id: String,
     purchase: Purchase,
     decision_delivery: DecisionDelivery,
+    coverage_requests: Option<CoverageRequests>,
+}
+
+#[derive(Debug, Serialize, Eq, PartialEq, Deserialize, Clone)]
+#[serde(rename_all(serialize = "camelCase", deserialize = "snake_case"))]
+pub struct SignifydFrmMetadata {
+    pub total_shipping_cost: Option<i64>,
+    pub fulfillment_method: Option<FulfillmentMethod>,
+    pub coverage_request: Option<CoverageRequests>,
+    pub order_channel: OrderChannel,
 }
 
 impl TryFrom<&frm_types::FrmSaleRouterData> for SignifydPaymentsSaleRequest {
@@ -103,9 +146,25 @@ impl TryFrom<&frm_types::FrmSaleRouterData> for SignifydPaymentsSaleRequest {
                 item_name: order_detail.product_name.clone(),
                 item_price: order_detail.amount,
                 item_quantity: i32::from(order_detail.quantity),
+                item_id: order_detail.product_id.clone(),
+                item_category: order_detail.category.clone(),
+                item_sub_category: order_detail.sub_category.clone(),
+                item_is_digital: order_detail
+                    .product_type
+                    .as_ref()
+                    .map(|product| (product == &api_models::payments::ProductType::Digital)),
             })
             .collect::<Vec<_>>();
+        let metadata: SignifydFrmMetadata = item
+            .frm_metadata
+            .clone()
+            .ok_or(errors::ConnectorError::MissingRequiredField {
+                field_name: "frm_metadata",
+            })?
+            .parse_value("Signifyd Frm Metadata")
+            .change_context(errors::ConnectorError::RequestEncodingFailed)?;
         let ship_address = item.get_shipping_address()?;
+        let billing_address = item.get_billing()?;
         let street_addr = ship_address.get_line1()?;
         let city_addr = ship_address.get_city()?;
         let zip_code_addr = ship_address.get_zip()?;
@@ -128,19 +187,30 @@ impl TryFrom<&frm_types::FrmSaleRouterData> for SignifydPaymentsSaleRequest {
         };
 
         let created_at = common_utils::date_time::now();
-        let order_channel = OrderChannel::Web;
-        let shipments = Shipments { destination };
+        let order_channel = metadata.order_channel;
+        let shipments = Shipments {
+            destination,
+            fulfillment_method: metadata.fulfillment_method,
+        };
         let purchase = Purchase {
             created_at,
             order_channel,
             total_price: item.request.amount,
             products,
             shipments,
+            currency: item.request.currency,
+            total_shipping_cost: metadata.total_shipping_cost,
+            confirmation_email: item.request.email.clone(),
+            confirmation_phone: billing_address
+                .clone()
+                .phone
+                .and_then(|phone_data| phone_data.number),
         };
         Ok(Self {
             order_id: item.attempt_id.clone(),
             purchase,
-            decision_delivery: DecisionDelivery::Sync,
+            decision_delivery: DecisionDelivery::Sync, // Specify SYNC if you require the Response to contain a decision field. If you have registered for a webhook associated with this checkpoint, then the webhook will also be sent when SYNC is specified. If ASYNC_ONLY is specified, then the decision field in the response will be null, and you will require a Webhook integration to receive Signifyd's final decision
+            coverage_requests: metadata.coverage_request,
         })
     }
 }
@@ -297,6 +367,7 @@ pub struct SignifydPaymentsCheckoutRequest {
     checkout_id: String,
     order_id: String,
     purchase: Purchase,
+    coverage_requests: Option<CoverageRequests>,
 }
 
 impl TryFrom<&frm_types::FrmCheckoutRouterData> for SignifydPaymentsCheckoutRequest {
@@ -310,8 +381,23 @@ impl TryFrom<&frm_types::FrmCheckoutRouterData> for SignifydPaymentsCheckoutRequ
                 item_name: order_detail.product_name.clone(),
                 item_price: order_detail.amount,
                 item_quantity: i32::from(order_detail.quantity),
+                item_id: order_detail.product_id.clone(),
+                item_category: order_detail.category.clone(),
+                item_sub_category: order_detail.sub_category.clone(),
+                item_is_digital: order_detail
+                    .product_type
+                    .as_ref()
+                    .map(|product| (product == &api_models::payments::ProductType::Digital)),
             })
             .collect::<Vec<_>>();
+        let metadata: SignifydFrmMetadata = item
+            .frm_metadata
+            .clone()
+            .ok_or(errors::ConnectorError::MissingRequiredField {
+                field_name: "frm_metadata",
+            })?
+            .parse_value("Signifyd Frm Metadata")
+            .change_context(errors::ConnectorError::RequestEncodingFailed)?;
         let ship_address = item.get_shipping_address()?;
         let street_addr = ship_address.get_line1()?;
         let city_addr = ship_address.get_city()?;
@@ -319,6 +405,7 @@ impl TryFrom<&frm_types::FrmCheckoutRouterData> for SignifydPaymentsCheckoutRequ
         let country_code_addr = ship_address.get_country()?;
         let _first_name_addr = ship_address.get_first_name()?;
         let _last_name_addr = ship_address.get_last_name()?;
+        let billing_address = item.get_billing()?;
         let address: Address = Address {
             street_address: street_addr.clone(),
             unit: None,
@@ -334,19 +421,30 @@ impl TryFrom<&frm_types::FrmCheckoutRouterData> for SignifydPaymentsCheckoutRequ
             address,
         };
         let created_at = common_utils::date_time::now();
-        let order_channel = OrderChannel::Web;
-        let shipments: Shipments = Shipments { destination };
+        let order_channel = metadata.order_channel;
+        let shipments: Shipments = Shipments {
+            destination,
+            fulfillment_method: metadata.fulfillment_method,
+        };
         let purchase = Purchase {
             created_at,
             order_channel,
             total_price: item.request.amount,
             products,
             shipments,
+            currency: item.request.currency,
+            total_shipping_cost: metadata.total_shipping_cost,
+            confirmation_email: item.request.email.clone(),
+            confirmation_phone: billing_address
+                .clone()
+                .phone
+                .and_then(|phone_data| phone_data.number),
         };
         Ok(Self {
             checkout_id: item.payment_id.clone(),
             order_id: item.attempt_id.clone(),
             purchase,
+            coverage_requests: metadata.coverage_request,
         })
     }
 }
diff --git a/crates/router/src/core/fraud_check/flows/checkout_flow.rs b/crates/router/src/core/fraud_check/flows/checkout_flow.rs
index 58e82ec21c..d0e5376b2c 100644
--- a/crates/router/src/core/fraud_check/flows/checkout_flow.rs
+++ b/crates/router/src/core/fraud_check/flows/checkout_flow.rs
@@ -86,11 +86,17 @@ impl ConstructFlowSpecificData<frm_api::Checkout, FraudCheckCheckoutData, FraudC
                     })
                     .transpose()
                     .unwrap_or_default(),
-                email: customer.clone().and_then(|customer_data| {
-                    customer_data
-                        .email
-                        .and_then(|email| Email::try_from(email.into_inner().expose()).ok())
-                }),
+                email: customer
+                    .clone()
+                    .and_then(|customer_data| {
+                        customer_data
+                            .email
+                            .map(|email| Email::try_from(email.into_inner().expose()))
+                    })
+                    .transpose()
+                    .change_context(errors::ApiErrorResponse::InvalidDataValue {
+                        field_name: "customer.customer_data.email",
+                    })?,
                 gateway: self.payment_attempt.connector.clone(),
             }, // self.order_details
             response: Ok(FraudCheckResponseData::TransactionResponse {
diff --git a/crates/router/src/core/fraud_check/flows/sale_flow.rs b/crates/router/src/core/fraud_check/flows/sale_flow.rs
index 0ce0c89bd3..393abd7ee1 100644
--- a/crates/router/src/core/fraud_check/flows/sale_flow.rs
+++ b/crates/router/src/core/fraud_check/flows/sale_flow.rs
@@ -1,6 +1,7 @@
 use async_trait::async_trait;
-use common_utils::ext_traits::ValueExt;
+use common_utils::{ext_traits::ValueExt, pii::Email};
 use error_stack::ResultExt;
+use masking::ExposeInterface;
 
 use crate::{
     core::{
@@ -65,6 +66,18 @@ impl ConstructFlowSpecificData<frm_api::Sale, FraudCheckSaleData, FraudCheckResp
             request: FraudCheckSaleData {
                 amount: self.payment_attempt.amount,
                 order_details: self.order_details.clone(),
+                currency: self.payment_attempt.currency,
+                email: customer
+                    .clone()
+                    .and_then(|customer_data| {
+                        customer_data
+                            .email
+                            .map(|email| Email::try_from(email.into_inner().expose()))
+                    })
+                    .transpose()
+                    .change_context(errors::ApiErrorResponse::InvalidDataValue {
+                        field_name: "customer.customer_data.email",
+                    })?,
             },
             response: Ok(FraudCheckResponseData::TransactionResponse {
                 resource_id: ResponseId::ConnectorTransactionId("".to_string()),
@@ -92,7 +105,7 @@ impl ConstructFlowSpecificData<frm_api::Sale, FraudCheckSaleData, FraudCheckResp
             external_latency: None,
             connector_api_version: None,
             apple_pay_flow: None,
-            frm_metadata: None,
+            frm_metadata: self.frm_metadata.clone(),
             refund_id: None,
             dispute_id: None,
             connector_response: None,
diff --git a/crates/router/src/core/fraud_check/flows/transaction_flow.rs b/crates/router/src/core/fraud_check/flows/transaction_flow.rs
index a24f196245..783920142b 100644
--- a/crates/router/src/core/fraud_check/flows/transaction_flow.rs
+++ b/crates/router/src/core/fraud_check/flows/transaction_flow.rs
@@ -109,7 +109,7 @@ impl
             connector_api_version: None,
             payment_method_status: None,
             apple_pay_flow: None,
-            frm_metadata: None,
+            frm_metadata: self.frm_metadata.clone(),
             refund_id: None,
             dispute_id: None,
             connector_response: None,
diff --git a/crates/router/src/core/fraud_check/operation/fraud_check_post.rs b/crates/router/src/core/fraud_check/operation/fraud_check_post.rs
index 3a80865bcd..49862495f3 100644
--- a/crates/router/src/core/fraud_check/operation/fraud_check_post.rs
+++ b/crates/router/src/core/fraud_check/operation/fraud_check_post.rs
@@ -173,6 +173,8 @@ impl<F: Send + Clone> Domain<F> for FraudCheckPost {
             request: FrmRequest::Sale(FraudCheckSaleData {
                 amount: router_data.request.amount,
                 order_details: router_data.request.order_details,
+                currency: router_data.request.currency,
+                email: router_data.request.email,
             }),
             response: FrmResponse::Sale(router_data.response),
         }))
@@ -318,6 +320,8 @@ impl<F: Send + Clone> Domain<F> for FraudCheckPost {
             request: FrmRequest::Sale(FraudCheckSaleData {
                 amount: router_data.request.amount,
                 order_details: router_data.request.order_details,
+                currency: router_data.request.currency,
+                email: router_data.request.email,
             }),
             response: FrmResponse::Sale(router_data.response),
         })
diff --git a/crates/router/src/core/payments/transformers.rs b/crates/router/src/core/payments/transformers.rs
index d459f632d8..56874e5a9f 100644
--- a/crates/router/src/core/payments/transformers.rs
+++ b/crates/router/src/core/payments/transformers.rs
@@ -1014,6 +1014,7 @@ pub fn change_order_details_to_new_type(
         requires_shipping: order_details.requires_shipping,
         product_id: order_details.product_id,
         category: order_details.category,
+        sub_category: order_details.sub_category,
         brand: order_details.brand,
         product_type: order_details.product_type,
     }])
diff --git a/crates/router/src/types/fraud_check.rs b/crates/router/src/types/fraud_check.rs
index b6f1d10888..12ab7e4a06 100644
--- a/crates/router/src/types/fraud_check.rs
+++ b/crates/router/src/types/fraud_check.rs
@@ -17,6 +17,8 @@ pub type FrmSaleType =
 pub struct FraudCheckSaleData {
     pub amount: i64,
     pub order_details: Option<Vec<api_models::payments::OrderDetailsWithAmount>>,
+    pub currency: Option<common_enums::Currency>,
+    pub email: Option<Email>,
 }
 #[derive(Debug, Clone)]
 pub struct FrmRouterData {
diff --git a/crates/router/tests/connectors/payme.rs b/crates/router/tests/connectors/payme.rs
index 5e9531a4f7..a168200148 100644
--- a/crates/router/tests/connectors/payme.rs
+++ b/crates/router/tests/connectors/payme.rs
@@ -84,6 +84,7 @@ fn payment_method_details() -> Option<types::PaymentsAuthorizeData> {
             requires_shipping: None,
             product_id: None,
             category: None,
+            sub_category: None,
             brand: None,
             product_type: None,
         }]),
@@ -383,6 +384,7 @@ async fn should_fail_payment_for_incorrect_cvc() {
                     requires_shipping: None,
                     product_id: None,
                     category: None,
+                    sub_category: None,
                     brand: None,
                     product_type: None,
                 }]),
@@ -421,6 +423,7 @@ async fn should_fail_payment_for_invalid_exp_month() {
                     requires_shipping: None,
                     product_id: None,
                     category: None,
+                    sub_category: None,
                     brand: None,
                     product_type: None,
                 }]),
@@ -459,6 +462,7 @@ async fn should_fail_payment_for_incorrect_expiry_year() {
                     requires_shipping: None,
                     product_id: None,
                     category: None,
+                    sub_category: None,
                     brand: None,
                     product_type: None,
                 }]),
diff --git a/crates/router/tests/connectors/zen.rs b/crates/router/tests/connectors/zen.rs
index 95017e7da0..e076aee42c 100644
--- a/crates/router/tests/connectors/zen.rs
+++ b/crates/router/tests/connectors/zen.rs
@@ -322,6 +322,7 @@ async fn should_fail_payment_for_incorrect_card_number() {
                     requires_shipping: None,
                     product_id: None,
                     category: None,
+                    sub_category: None,
                     brand: None,
                     product_type: None,
                 }]),
@@ -363,6 +364,7 @@ async fn should_fail_payment_for_incorrect_cvc() {
                     requires_shipping: None,
                     product_id: None,
                     category: None,
+                    sub_category: None,
                     brand: None,
                     product_type: None,
                 }]),
@@ -404,6 +406,7 @@ async fn should_fail_payment_for_invalid_exp_month() {
                     requires_shipping: None,
                     product_id: None,
                     category: None,
+                    sub_category: None,
                     brand: None,
                     product_type: None,
                 }]),
@@ -445,6 +448,7 @@ async fn should_fail_payment_for_incorrect_expiry_year() {
                     requires_shipping: None,
                     product_id: None,
                     category: None,
+                    sub_category: None,
                     brand: None,
                     product_type: None,
                 }]),
diff --git a/openapi/openapi_spec.json b/openapi/openapi_spec.json
index 586fd1c111..70e4715183 100644
--- a/openapi/openapi_spec.json
+++ b/openapi/openapi_spec.json
@@ -11658,6 +11658,11 @@
             "description": "Category of the product that is being purchased",
             "nullable": true
           },
+          "sub_category": {
+            "type": "string",
+            "description": "Sub category of the product that is being purchased",
+            "nullable": true
+          },
           "brand": {
             "type": "string",
             "description": "Brand of the product that is being purchased",
@@ -11718,6 +11723,11 @@
             "description": "Category of the product that is being purchased",
             "nullable": true
           },
+          "sub_category": {
+            "type": "string",
+            "description": "Sub category of the product that is being purchased",
+            "nullable": true
+          },
           "brand": {
             "type": "string",
             "description": "Brand of the product that is being purchased",