diff --git a/parachain-template/runtime/src/xcm_config.rs b/parachain-template/runtime/src/xcm_config.rs
index fa056fc65d3..7a1f5798c2e 100644
--- a/parachain-template/runtime/src/xcm_config.rs
+++ b/parachain-template/runtime/src/xcm_config.rs
@@ -19,7 +19,7 @@ use xcm_builder::{
 	SignedAccountId32AsNative, SignedToAccountId32, SovereignSignedViaLocation, TakeWeightCredit,
 	UsingComponents, WithComputedOrigin,
 };
-use xcm_executor::{traits::ShouldExecute, XcmExecutor};
+use xcm_executor::{traits::{RejectReason, ShouldExecute}, XcmExecutor};
 
 parameter_types! {
 	pub const RelayLocation: MultiLocation = MultiLocation::parent();
@@ -107,7 +107,7 @@ where
 		message: &mut [Instruction<RuntimeCall>],
 		max_weight: Weight,
 		weight_credit: &mut Weight,
-	) -> Result<(), ()> {
+	) -> Result<(), RejectReason> {
 		Deny::should_execute(origin, message, max_weight, weight_credit)?;
 		Allow::should_execute(origin, message, max_weight, weight_credit)
 	}
@@ -121,7 +121,7 @@ impl ShouldExecute for DenyReserveTransferToRelayChain {
 		message: &mut [Instruction<RuntimeCall>],
 		_max_weight: Weight,
 		_weight_credit: &mut Weight,
-	) -> Result<(), ()> {
+	) -> Result<(), RejectReason> {
 		if message.iter().any(|inst| {
 			matches!(
 				inst,
@@ -135,7 +135,7 @@ impl ShouldExecute for DenyReserveTransferToRelayChain {
 					}
 			)
 		}) {
-			return Err(()) // Deny
+			return Err(RejectReason::ForbiddenInstructions) // Deny
 		}
 
 		// An unexpected reserve transfer has arrived from the Relay Chain. Generally, `IsReserve`
diff --git a/parachains/common/src/xcm_config.rs b/parachains/common/src/xcm_config.rs
index ac4cd8858e7..ede60b3fcbd 100644
--- a/parachains/common/src/xcm_config.rs
+++ b/parachains/common/src/xcm_config.rs
@@ -7,7 +7,7 @@ use frame_support::{
 };
 use sp_runtime::traits::Get;
 use xcm::latest::prelude::*;
-use xcm_executor::traits::ShouldExecute;
+use xcm_executor::traits::{RejectReason, ShouldExecute};
 
 //TODO: move DenyThenTry to polkadot's xcm module.
 /// Deny executing the XCM if it matches any of the Deny filter regardless of anything else.
@@ -27,7 +27,7 @@ where
 		message: &mut [Instruction<RuntimeCall>],
 		max_weight: Weight,
 		weight_credit: &mut Weight,
-	) -> Result<(), ()> {
+	) -> Result<(), RejectReason> {
 		Deny::should_execute(origin, message, max_weight, weight_credit)?;
 		Allow::should_execute(origin, message, max_weight, weight_credit)
 	}
@@ -41,7 +41,7 @@ impl ShouldExecute for DenyReserveTransferToRelayChain {
 		message: &mut [Instruction<RuntimeCall>],
 		_max_weight: Weight,
 		_weight_credit: &mut Weight,
-	) -> Result<(), ()> {
+	) -> Result<(), RejectReason> {
 		if message.iter().any(|inst| {
 			matches!(
 				inst,
@@ -55,7 +55,7 @@ impl ShouldExecute for DenyReserveTransferToRelayChain {
 					}
 			)
 		}) {
-			return Err(()) // Deny
+			return Err(RejectReason::ForbiddenInstructions) // Deny
 		}
 
 		// An unexpected reserve transfer has arrived from the Relay Chain. Generally, `IsReserve`