diff --git a/packages/hardhat/contracts/claim/distributor-v5/ContinuousVestingMerkleDistributor.sol b/packages/hardhat/contracts/claim/distributor-v5/ContinuousVestingMerkleDistributor.sol
index 72c85c6..1fd073f 100644
--- a/packages/hardhat/contracts/claim/distributor-v5/ContinuousVestingMerkleDistributor.sol
+++ b/packages/hardhat/contracts/claim/distributor-v5/ContinuousVestingMerkleDistributor.sol
@@ -77,8 +77,8 @@ contract ContinuousVestingMerkleDistributor_v_5_0 is Initializable, ContinuousVe
         return 5;
     }
 
-    modifier validSignature(uint256 totalAmount, uint64 expiresAt, bytes memory signature) {
-        verifyAccessSignature(networkConfig.getAccessAuthorityAddress(), _msgSender(), totalAmount, expiresAt, signature);
+    modifier validSignature(uint256 totalAmount, bytes memory extraDetails, uint64 expiresAt, bytes memory signature) {
+        verifyAccessSignature(networkConfig.getAccessAuthorityAddress(), _msgSender(), totalAmount, extraDetails, expiresAt, signature);
 
         _;
     }
@@ -94,7 +94,7 @@ contract ContinuousVestingMerkleDistributor_v_5_0 is Initializable, ContinuousVe
     )
         external
         payable
-        validSignature(totalAmount, expiresAt, signature)
+        validSignature(totalAmount, encodedVestingSchedule, expiresAt, signature)
         nonReentrant
     {
         IOracleOrL2OracleWithSequencerCheck nativeTokenPriceOracle = IOracleOrL2OracleWithSequencerCheck(networkConfig.getNativeTokenPriceOracleAddress());
diff --git a/packages/hardhat/contracts/claim/distributor-v5/TrancheVestingMerkleDistributor.sol b/packages/hardhat/contracts/claim/distributor-v5/TrancheVestingMerkleDistributor.sol
index 62f312f..4e65766 100644
--- a/packages/hardhat/contracts/claim/distributor-v5/TrancheVestingMerkleDistributor.sol
+++ b/packages/hardhat/contracts/claim/distributor-v5/TrancheVestingMerkleDistributor.sol
@@ -78,8 +78,8 @@ contract TrancheVestingMerkleDistributor_v_5_0 is
         return 5;
     }
 
-    modifier validSignature(uint256 totalAmount, uint64 expiresAt, bytes memory signature) {
-        verifyAccessSignature(networkConfig.getAccessAuthorityAddress(), _msgSender(), totalAmount, expiresAt, signature);
+    modifier validSignature(uint256 totalAmount, bytes memory extraDetails, uint64 expiresAt, bytes memory signature) {
+        verifyAccessSignature(networkConfig.getAccessAuthorityAddress(), _msgSender(), totalAmount, extraDetails, expiresAt, signature);
 
         _;
     }
@@ -95,7 +95,7 @@ contract TrancheVestingMerkleDistributor_v_5_0 is
     )
         external
         payable
-        validSignature(totalAmount, expiresAt, signature)
+        validSignature(totalAmount, encodedVestingSchedule, expiresAt, signature)
         nonReentrant
     {
         IOracleOrL2OracleWithSequencerCheck nativeTokenPriceOracle = IOracleOrL2OracleWithSequencerCheck(networkConfig.getNativeTokenPriceOracleAddress());
diff --git a/packages/hardhat/contracts/sale/v4/FlatPriceSale.sol b/packages/hardhat/contracts/sale/v4/FlatPriceSale.sol
index a4e7bdd..b9f92c5 100644
--- a/packages/hardhat/contracts/sale/v4/FlatPriceSale.sol
+++ b/packages/hardhat/contracts/sale/v4/FlatPriceSale.sol
@@ -248,6 +248,7 @@ contract FlatPriceSale_v_4_0 is Sale, PullPaymentUpgradeable, AccessVerifier {
 			networkConfig.getAccessAuthorityAddress(),
 			_msgSender(),
 			userLimit,
+			hex"",
 			expiresAt,
 			signature
 		);
diff --git a/packages/hardhat/contracts/utilities/AccessVerifier.sol b/packages/hardhat/contracts/utilities/AccessVerifier.sol
index 32cc7a4..1f9a591 100644
--- a/packages/hardhat/contracts/utilities/AccessVerifier.sol
+++ b/packages/hardhat/contracts/utilities/AccessVerifier.sol
@@ -9,6 +9,7 @@ contract AccessVerifier {
 		address accessAuthorityAddress,
 		address member,
 		uint256 userLimit,
+		bytes memory extraDetails,
 		uint64 expires_at,
 		bytes memory signature
 	) internal view {
@@ -16,6 +17,7 @@ contract AccessVerifier {
 			address(this),
 			member,
 			userLimit,
+			extraDetails,
 			expires_at
 		);
 		bytes32 hash = keccak256(message);