diff --git a/chains/lighter/message/lighter.go b/chains/lighter/message/lighter.go
index 6fbd2343..c93ddc1d 100644
--- a/chains/lighter/message/lighter.go
+++ b/chains/lighter/message/lighter.go
@@ -15,6 +15,7 @@ import (
 	"github.com/rs/zerolog/log"
 	"github.com/sprintertech/sprinter-signing/chains/evm/calls/consts"
 	"github.com/sprintertech/sprinter-signing/chains/evm/signature"
+	lighterChain "github.com/sprintertech/sprinter-signing/chains/lighter"
 	"github.com/sprintertech/sprinter-signing/comm"
 	"github.com/sprintertech/sprinter-signing/protocol/lighter"
 	"github.com/sprintertech/sprinter-signing/tss"
@@ -118,7 +119,7 @@ func (h *LighterMessageHandler) HandleMessage(m *message.Message) (*proposal.Pro
 		return nil, err
 	}
 
-	sessionID := fmt.Sprintf("lighter-%s", "")
+	sessionID := fmt.Sprintf("%d-%s", lighterChain.LIGHTER_DOMAIN_ID, data.OrderHash)
 	signing, err := signing.NewSigning(
 		new(big.Int).SetBytes(unlockHash),
 		sessionID,
@@ -147,7 +148,7 @@ func (h *LighterMessageHandler) verifyWithdrawal(tx *lighter.LighterTx, borrowAm
 	}
 
 	if borrowAmount.Cmp(new(big.Int).SetUint64(tx.Transfer.USDCAmount)) != -1 {
-		return errors.New("borrow amount higher transfer amount")
+		return errors.New("borrow amount higher than transfer amount")
 	}
 
 	return nil
diff --git a/chains/lighter/message/lighter_test.go b/chains/lighter/message/lighter_test.go
index 20b5f5ca..98a82591 100644
--- a/chains/lighter/message/lighter_test.go
+++ b/chains/lighter/message/lighter_test.go
@@ -85,6 +85,7 @@ func (s *LighterMessageHandlerTestSuite) Test_HandleMessage_ValidMessage() {
 		LiquidityPool: common.HexToAddress("0xbe526bA5d1ad94cC59D7A79d99A59F607d31A657"),
 		Caller:        common.HexToAddress("0xde526bA5d1ad94cC59D7A79d99A59F607d31A657"),
 		OrderHash:     "orderHash",
+		DepositTxHash: "orderHash",
 		BorrowAmount:  big.NewInt(1900000),
 	}
 
@@ -128,6 +129,7 @@ func (s *LighterMessageHandlerTestSuite) Test_HandleMessage_InvalidTxType() {
 		LiquidityPool: common.HexToAddress("0xbe526bA5d1ad94cC59D7A79d99A59F607d31A657"),
 		Caller:        common.HexToAddress("0xde526bA5d1ad94cC59D7A79d99A59F607d31A657"),
 		OrderHash:     "orderHash",
+		DepositTxHash: "orderHash",
 		BorrowAmount:  big.NewInt(1900000),
 	}
 	s.mockTxFetcher.EXPECT().GetTx(ad.OrderHash).Return(&lighter.LighterTx{
@@ -169,6 +171,7 @@ func (s *LighterMessageHandlerTestSuite) Test_HandleMessage_InvalidAccount() {
 		LiquidityPool: common.HexToAddress("0xbe526bA5d1ad94cC59D7A79d99A59F607d31A657"),
 		Caller:        common.HexToAddress("0xde526bA5d1ad94cC59D7A79d99A59F607d31A657"),
 		OrderHash:     "orderHash",
+		DepositTxHash: "orderHash",
 		BorrowAmount:  big.NewInt(1900000),
 	}
 	s.mockTxFetcher.EXPECT().GetTx(ad.OrderHash).Return(&lighter.LighterTx{
@@ -210,6 +213,7 @@ func (s *LighterMessageHandlerTestSuite) Test_HandleMessage_MissingTx() {
 		LiquidityPool: common.HexToAddress("0xbe526bA5d1ad94cC59D7A79d99A59F607d31A657"),
 		Caller:        common.HexToAddress("0xde526bA5d1ad94cC59D7A79d99A59F607d31A657"),
 		OrderHash:     "orderHash",
+		DepositTxHash: "orderHash",
 		BorrowAmount:  big.NewInt(1900000),
 	}
 	s.mockTxFetcher.EXPECT().GetTx(ad.OrderHash).Return(nil, fmt.Errorf("not found"))
@@ -245,6 +249,7 @@ func (s *LighterMessageHandlerTestSuite) Test_HandleMessage_BorrowAmountTooHigh(
 		LiquidityPool: common.HexToAddress("0xbe526bA5d1ad94cC59D7A79d99A59F607d31A657"),
 		Caller:        common.HexToAddress("0xde526bA5d1ad94cC59D7A79d99A59F607d31A657"),
 		OrderHash:     "orderHash",
+		DepositTxHash: "orderHash",
 		BorrowAmount:  big.NewInt(2000000),
 	}
 
diff --git a/go.sum b/go.sum
index 54f7d362..36d1b983 100644
--- a/go.sum
+++ b/go.sum
@@ -948,8 +948,6 @@ github.com/spf13/viper v1.9.0 h1:yR6EXjTp0y0cLN8OZg1CRZmOBdI88UcGkhgyJhu6nZk=
 github.com/spf13/viper v1.9.0/go.mod h1:+i6ajR7OX2XaiBkrcZJFK21htRk7eDeLg7+O6bhUPP4=
 github.com/sprintertech/lifi-solver v0.0.0-20251023154209-4cf9ac1ab166 h1:mCcKOxfLs+5tFGD5ZyVVMeqlUuNzhHttul05x27zWFo=
 github.com/sprintertech/lifi-solver v0.0.0-20251023154209-4cf9ac1ab166/go.mod h1:EbAH3JJxioBVuHvyjaP5zTh6uPmumCpbE93WEjwpRm0=
-github.com/sprintertech/solver-config/go v0.0.0-20251024140304-ee77ffefd608 h1:J5RxJUhqMGfoIUb8XnSjDBlUMH658nM9NIjXft+DjkA=
-github.com/sprintertech/solver-config/go v0.0.0-20251024140304-ee77ffefd608/go.mod h1:MrIGW6M815PSYKtWSeOd1Z7eiSeOIk/uA/6E2PhlQVQ=
 github.com/sprintertech/solver-config/go v0.0.0-20251027142430-7f32bdd5da1e h1:5sSP6GbqCT/ApxxZmUtav6GHy5Ke98zh5oqQxewhJd4=
 github.com/sprintertech/solver-config/go v0.0.0-20251027142430-7f32bdd5da1e/go.mod h1:MrIGW6M815PSYKtWSeOd1Z7eiSeOIk/uA/6E2PhlQVQ=
 github.com/status-im/keycard-go v0.0.0-20190316090335-8537d3370df4/go.mod h1:RZLeN1LMWmRsyYjvAu+I6Dm9QmlDaIIt+Y+4Kd7Tp+Q=