diff --git a/example/src/tests/groupTests.ts b/example/src/tests/groupTests.ts
index 97f6e1223..09bafb78b 100644
--- a/example/src/tests/groupTests.ts
+++ b/example/src/tests/groupTests.ts
@@ -555,7 +555,7 @@ test('unpublished messages handling', async () => {
   }
 
   // Publish the prepared message
-  await alixGroup.publishPreparedMessage(preparedMessageId)
+  await alixGroup.publishPreparedMessages()
 
   // Sync the group after publishing the message
   await alixGroup.sync()
diff --git a/ios/Wrappers/GroupWrapper.swift b/ios/Wrappers/GroupWrapper.swift
index 47d49f547..80144dcc0 100644
--- a/ios/Wrappers/GroupWrapper.swift
+++ b/ios/Wrappers/GroupWrapper.swift
@@ -13,7 +13,7 @@ struct GroupWrapper {
 	static func encodeToObj(_ group: XMTP.Group, client: XMTP.Client) throws -> [String: Any] {
 		return [
 			"clientAddress": client.address,
-			"id": group.id.toHex,
+			"id": group.id,
 			"createdAt": UInt64(group.createdAt.timeIntervalSince1970 * 1000),
 			"peerInboxIds": try group.peerInboxIds,
 			"version": "GROUP",
diff --git a/ios/XMTPModule.swift b/ios/XMTPModule.swift
index ea1401ffa..2b8a7a266 100644
--- a/ios/XMTPModule.swift
+++ b/ios/XMTPModule.swift
@@ -492,7 +492,7 @@ public class XMTPModule: Module {
 			guard let client = await clientsManager.getClient(key: inboxId) else {
 				throw Error.noClient
 			}
-			if let message = try client.findMessage(messageId: Data(hex: messageId) ?? Data()) {
+			if let message = try client.findMessage(messageId: messageId) {
 				return try DecodedMessageWrapper.encode(message.decrypt(), client: client)
 			} else {
 				return nil
@@ -503,7 +503,7 @@ public class XMTPModule: Module {
 			guard let client = await clientsManager.getClient(key: inboxId) else {
 				throw Error.noClient
 			}
-			if let group = try client.findGroup(groupId: Data(hex: groupId) ?? Data()) {
+			if let group = try client.findGroup(groupId: groupId) {
 				return try GroupWrapper.encode(group, client: client)
 			} else {
 				return nil
@@ -1368,16 +1368,14 @@ public class XMTPModule: Module {
       guard let client = await clientsManager.getClient(key: inboxId) else {
         throw Error.noClient
       }
-		let groupDataIds = groupIds.compactMap { $0.hexToData }
-      try await client.contacts.allowGroups(groupIds: groupDataIds)
+      try await client.contacts.allowGroups(groupIds: groupIds)
     }
     
     AsyncFunction("denyGroups") { (inboxId: String, groupIds: [String]) in
       guard let client = await clientsManager.getClient(key: inboxId) else {
         throw Error.noClient
       }
-		let groupDataIds = groupIds.compactMap { $0.hexToData }
-      try await client.contacts.denyGroups(groupIds: groupDataIds)
+      try await client.contacts.denyGroups(groupIds: groupIds)
     }
 
     AsyncFunction("isGroupAllowed") { (inboxId: String, groupId: String) -> Bool in
@@ -1468,7 +1466,7 @@ public class XMTPModule: Module {
 		let cacheKey = XMTP.Group.cacheKeyForId(inboxId: client.inboxID, id: id)
 		if let group = await groupsManager.get(cacheKey) {
 			return group
-		} else if let group = try await client.conversations.groups().first(where: { $0.id.toHex == id }) {
+		} else if let group = try client.findGroup(groupId: id) {
 			await groupsManager.set(cacheKey, group)
 			return group
 		}