diff --git a/src/api/api.js b/src/api/api.js
index c4da27c8..11444e63 100644
--- a/src/api/api.js
+++ b/src/api/api.js
@@ -9,7 +9,7 @@ class Api {
   constructor(baseUrl) {
     this.baseUrl = baseUrl;
     this.socket = null;
-    this.curerntUserId = null;
+    this.currentUserId = null;
     this.responsesPromises = {};
     this.onMessageListener = null;
     this.onMessageStatusListener = null;
@@ -40,6 +40,12 @@ class Api {
             );
             return;
           }
+          if (message.event.conversation_updated) {
+            this.onConversationCreateListener?.(
+              message.event.conversation_updated
+            );
+            return;
+          }
           if (message.event.conversation_kicked) {
             this.onConversationDeleteListener?.(
               message.event.conversation_kicked
@@ -67,7 +73,7 @@ class Api {
           if (this.onMessageListener) {
             this.onMessageListener(message.message);
           }
-          if (message.message.from.toString() !== this.curerntUserId) {
+          if (message.message.from !== this.currentUserId) {
             EventEmitter.emit("onMessage", message.message);
           }
           return;
@@ -158,6 +164,7 @@ class Api {
               login: data.ulogin,
               password: data.pass,
               deviceId: getBrowserFingerprint(true),
+              application_id: 6783
             },
         id: getUniqueId("userLogin"),
       },
diff --git a/src/components/generic/chatComponents/ParticipantInChatInfo.js b/src/components/generic/chatComponents/ParticipantInChatInfo.js
index 593c03e4..508972fa 100644
--- a/src/components/generic/chatComponents/ParticipantInChatInfo.js
+++ b/src/components/generic/chatComponents/ParticipantInChatInfo.js
@@ -29,7 +29,7 @@ export default function ParticipantInChatInfo({
         if (isCurrentUser) {
           return;
         }
-        navigate(pathname + hash + `/participant?uid=${user._id}`);
+        navigate(pathname + hash + `/participant?uid=${user.native_id}`);
       }}
     >
       {user.login}
diff --git a/src/components/generic/messageComponents/ChatMessage.js b/src/components/generic/messageComponents/ChatMessage.js
index 3baa1956..c1246240 100644
--- a/src/components/generic/messageComponents/ChatMessage.js
+++ b/src/components/generic/messageComponents/ChatMessage.js
@@ -43,7 +43,7 @@ export default function ChatMessage({
   return (
     <div
       className={
-        fromId === userId.toString() ? "message my-message" : "message"
+        fromId === userId ? "message my-message" : "message"
       }
     >
       {isNextMessageYours ? (
diff --git a/src/components/generic/messageComponents/InformativeMessage.js b/src/components/generic/messageComponents/InformativeMessage.js
index 9917d2d4..c9a9f0de 100644
--- a/src/components/generic/messageComponents/InformativeMessage.js
+++ b/src/components/generic/messageComponents/InformativeMessage.js
@@ -16,7 +16,7 @@ export default function InformativeMessage({
           : "informative-message"
       }
       onClick={() =>
-        navigate(pathname + hash + `/participant?uid=${params?.user?._id}`)
+        navigate(pathname + hash + `/participant?uid=${params?.user?.native_id}`)
       }
     >
       {text}
diff --git a/src/components/screens/Login.js b/src/components/screens/Login.js
index 6e63c413..baebd177 100644
--- a/src/components/screens/Login.js
+++ b/src/components/screens/Login.js
@@ -39,7 +39,7 @@ export default function Login() {
 
       const { token: userToken, user: userData } = await api.userLogin(data);
       localStorage.setItem("sessionId", userToken);
-      api.curerntUserId = userData._id;
+      api.currentUserId = userData.native_id;
 
       navigate("/main");
       subscribeForNotifications();
diff --git a/src/components/screens/chat/ChatList.js b/src/components/screens/chat/ChatList.js
index 4300d4d2..3e7caaee 100644
--- a/src/components/screens/chat/ChatList.js
+++ b/src/components/screens/chat/ChatList.js
@@ -37,7 +37,7 @@ export default function ChatList() {
     ? jwtDecode(localStorage.getItem("sessionId"))
     : null;
   const currentUser = useMemo(
-    () => (userInfo ? participants[userInfo._id] : {}),
+    () => (userInfo ? participants[userInfo.native_id] : {}),
     [userInfo, participants]
   );
 
@@ -93,7 +93,7 @@ export default function ChatList() {
     const list = [];
     for (const obj of conversations) {
       const chatName = !obj.name
-        ? obj.owner_id === userInfo?._id
+        ? obj.owner_id === userInfo?.native_id
           ? participants[obj.opponent_id]?.login
           : participants[obj.owner_id]?.login
         : obj.name;
@@ -117,7 +117,7 @@ export default function ChatList() {
             countOfNewMessages={obj.unread_messages_count}
             chatType={obj.type}
             lastMessage={obj.last_message}
-            uId={userInfo?._id}
+            uId={userInfo?.native_id}
           />
         </NavLink>
       );
diff --git a/src/components/screens/chat/MessagesList.js b/src/components/screens/chat/MessagesList.js
index a938ad79..e2a54e54 100644
--- a/src/components/screens/chat/MessagesList.js
+++ b/src/components/screens/chat/MessagesList.js
@@ -139,7 +139,7 @@ export default function MessagesList({ scrollRef }) {
           <ChatMessage
             key={msg._id}
             fromId={msg.from}
-            userId={userInfo._id}
+            userId={userInfo.native_id}
             text={msg.body}
             uName={participants[msg.from]?.login}
             isPrevMesssageYours={
diff --git a/src/components/screens/chat/chatFormBlocks/ChatFormInfo.js b/src/components/screens/chat/chatFormBlocks/ChatFormInfo.js
index 31df574e..ae715827 100644
--- a/src/components/screens/chat/chatFormBlocks/ChatFormInfo.js
+++ b/src/components/screens/chat/chatFormBlocks/ChatFormInfo.js
@@ -53,7 +53,7 @@ export default function ChatFormInfo({ closeForm }) {
 
     return (
       <p>
-        {getParticipantName(owner_id === userInfo._id ? opponent_id : owner_id)}
+        {getParticipantName(owner_id === userInfo.native_id ? opponent_id : owner_id)}
       </p>
     );
   }, [selectedConversation, participants]);
@@ -64,9 +64,9 @@ export default function ChatFormInfo({ closeForm }) {
       return null;
     }
 
-    return conv.owner_id === userInfo._id
-      ? participants[conv.opponent_id]?._id
-      : participants[conv.owner_id]?._id;
+    return conv.owner_id === userInfo.native_id
+      ? participants[conv.opponent_id]?.native_id
+      : participants[conv.owner_id]?.native_id;
   }, [selectedCID, participants]);
 
   const opponentLastActivity = participants[opponentId]?.recent_activity;
@@ -102,7 +102,7 @@ export default function ChatFormInfo({ closeForm }) {
           `/main/#${selectedCID}${
             selectedConversation.type === "g"
               ? "/info"
-              : "/opponentinfo?uid=" + participants[opponentId]._id
+              : "/opponentinfo?uid=" + participants[opponentId].native_id
           }`
         )
       }
diff --git a/src/components/screens/chat/chatFormBlocks/ChatFormInputs.js b/src/components/screens/chat/chatFormBlocks/ChatFormInputs.js
index 0d0ef7ce..d0071439 100644
--- a/src/components/screens/chat/chatFormBlocks/ChatFormInputs.js
+++ b/src/components/screens/chat/chatFormBlocks/ChatFormInputs.js
@@ -64,11 +64,11 @@ export default function ChatFormInputs({
     }
     setIsSendMessageDisable(true);
     messageInputEl.current.value = "";
-    const mid = userInfo._id + Date.now();
+    const mid = `${userInfo.native_id}${Date.now()}`;
     let msg = {
       _id: mid,
       body: text,
-      from: userInfo._id,
+      from: userInfo.native_id,
       t: Date.now(),
       attachments: files.map((file) => ({
         file_id: file.name,
@@ -114,7 +114,7 @@ export default function ChatFormInputs({
       msg = {
         _id: response.server_mid,
         body: text,
-        from: userInfo._id,
+        from: userInfo.native_id,
         status: "sent",
         t: response.t,
         attachments: attachments.map((obj, i) => ({
diff --git a/src/components/screens/info/ChatInfoPage.js b/src/components/screens/info/ChatInfoPage.js
index 64a6f31d..b02493e2 100644
--- a/src/components/screens/info/ChatInfoPage.js
+++ b/src/components/screens/info/ChatInfoPage.js
@@ -38,7 +38,7 @@ export default function ChatInfoPage() {
     if (!userInfo || !selectedConversation) {
       return false;
     }
-    return userInfo._id === selectedConversation.owner_id?.toString();
+    return userInfo.native_id === selectedConversation.owner_id;
   }, [userInfo, selectedConversation]);
 
   window.onkeydown = function (event) {
@@ -71,7 +71,7 @@ export default function ChatInfoPage() {
         return null;
       }
 
-      const isCurrentUser = u._id === userInfo._id;
+      const isCurrentUser = u.native_id === userInfo.native_id;
 
       const deleteUser = async (event) => {
         event.stopPropagation();
@@ -82,7 +82,7 @@ export default function ChatInfoPage() {
 
         const requestData = {
           cid: selectedCID,
-          participants: { remove: [u._id] },
+          participants: { remove: [u.native_id] },
         };
         await api.conversationUpdate(requestData);
         //remove user form participants field - redux
@@ -90,7 +90,7 @@ export default function ChatInfoPage() {
 
       return (
         <ParticipantInChatInfo
-          key={u._id}
+          key={`${u.native_id}`}
           user={u}
           deleteUserFunc={deleteUser}
           isCurrentUser={isCurrentUser}
diff --git a/src/components/screens/info/UserProfile.js b/src/components/screens/info/UserProfile.js
index 0d237ac4..e66bf159 100644
--- a/src/components/screens/info/UserProfile.js
+++ b/src/components/screens/info/UserProfile.js
@@ -31,7 +31,7 @@ export default function UserProfile() {
     : null;
 
   const currentUser = useMemo(
-    () => (userInfo ? participants[userInfo._id] : {}),
+    () => (userInfo ? participants[userInfo.native_id] : {}),
     [participants, userInfo]
   );
 
diff --git a/src/components/screens/info/UserSearch.js b/src/components/screens/info/UserSearch.js
index 9d71df59..90158489 100644
--- a/src/components/screens/info/UserSearch.js
+++ b/src/components/screens/info/UserSearch.js
@@ -56,7 +56,7 @@ export default function UserSearch({ type }) {
     if (selectedUsers.length) {
       const requestData = {
         type: selectedUsers.length > 1 ? "g" : "u", //fix it in future
-        participants: selectedUsers.map((el) => el._id),
+        participants: selectedUsers.map((el) => el.native_id),
       };
       selectedUsers.length > 1 &&
         (requestData["name"] = window.prompt("Please enter a chat name."));
@@ -75,7 +75,7 @@ export default function UserSearch({ type }) {
     event.preventDefault();
 
     if (selectedUsers.length) {
-      const addUsersArr = selectedUsers.map((el) => el._id);
+      const addUsersArr = selectedUsers.map((el) => el.native_id);
       const requestData = {
         cid: selectedCID,
         participants: { add: addUsersArr },
@@ -110,12 +110,12 @@ export default function UserSearch({ type }) {
     }
 
     setSelectedUsers([...selectedUsers, data]);
-    setIgnoreIds([...ignoreIds, data._id]);
-    setSearchedUsers(searchedUsers.filter((el) => el._id !== data._id));
+    setIgnoreIds([...ignoreIds, data.native_id]);
+    setSearchedUsers(searchedUsers.filter((el) => el.native_id !== data.native_id));
   };
   const removeUserToIgnore = async (data) => {
-    setSelectedUsers(selectedUsers.filter((el) => el._id !== data._id));
-    setIgnoreIds(ignoreIds.filter((id) => id !== data._id));
+    setSelectedUsers(selectedUsers.filter((el) => el.native_id !== data.native_id));
+    setIgnoreIds(ignoreIds.filter((id) => id !== data.native_id));
     setSearchedUsers([...searchedUsers, data]);
   };
 
@@ -172,7 +172,7 @@ export default function UserSearch({ type }) {
         {selectedUsers.length
           ? selectedUsers.map((d) => (
               <SelectedUser
-                key={d._id + "-selected"}
+                key={`${d.native_id}-selected`}
                 onClick={() => removeUserToIgnore(d)}
                 uLogin={d.login}
               />
@@ -183,7 +183,7 @@ export default function UserSearch({ type }) {
         {searchedUsers.length ? (
           searchedUsers.map((d) => (
             <SearchedUser
-              key={d._id}
+              key={`${d.native_id}`}
               onClick={() => addUserToIgnore(d)}
               uLogin={d.login}
             />
diff --git a/src/services/activityService.js b/src/services/activityService.js
index b3b29b51..33943015 100644
--- a/src/services/activityService.js
+++ b/src/services/activityService.js
@@ -11,7 +11,7 @@ class ActivityService {
   constructor() {
     api.onUserActivityListener = (user) => {
       const uId = Object.keys(user)[0];
-      store.dispatch(upsertUser({ _id: uId, recent_activity: user[uId] }));
+      store.dispatch(upsertUser({ native_id: +uId, recent_activity: user[uId] }));
     };
 
     store.subscribe(() => {
@@ -19,6 +19,11 @@ class ActivityService {
         store.getState();
       const selectedConversationId = selectedConversation.value.id;
 
+      if (!selectedConversationId) {
+        this.currentChatId = null
+        return
+      }
+
       if (
         !conversations.entities[selectedConversationId]?.created_at ||
         !participants.ids.length ||
@@ -48,7 +53,7 @@ class ActivityService {
     }
 
     const uId =
-      this.activeChat.owner_id === userInfo._id
+      this.activeChat.owner_id === userInfo.native_id
         ? this.activeChat.opponent_id
         : this.activeChat.owner_id;
 
@@ -59,7 +64,7 @@ class ActivityService {
     api.subscribeToUserActivity(uId).then((activity) => {
       store.dispatch(
         upsertUser({
-          _id: uId,
+          native_id: +uId,
           recent_activity: activity[uId],
         })
       );
diff --git a/src/services/autoLoginService.js b/src/services/autoLoginService.js
index 342ded79..7ba52dbe 100644
--- a/src/services/autoLoginService.js
+++ b/src/services/autoLoginService.js
@@ -35,7 +35,7 @@ class AutoLoginService {
 
       if (userToken && userToken !== "undefined") {
         localStorage.setItem("sessionId", userToken);
-        api.curerntUserId = userData._id;
+        api.currentUserId = userData.native_id;
 
         subscribeForNotifications();
         store.dispatch(upsertUser(userData));
diff --git a/src/services/conversationsService.js b/src/services/conversationsService.js
index 59046e55..4aa113db 100644
--- a/src/services/conversationsService.js
+++ b/src/services/conversationsService.js
@@ -19,7 +19,7 @@ class ConversationsService {
             ...chat,
             unread_messages_count: chat.unread_messages_count || 0,
             messagesIds: [],
-            participants: users.map((u) => u._id),
+            participants: users.map((u) => u.native_id),
           })
         );
         store.dispatch(addUsers(users));
diff --git a/src/services/messagesService.js b/src/services/messagesService.js
index 28799fe3..3311c20a 100644
--- a/src/services/messagesService.js
+++ b/src/services/messagesService.js
@@ -44,13 +44,13 @@ class MessagesService {
       }
 
       const userInfo = jwtDecode(localStorage.getItem("sessionId"));
-      message.from === userInfo._id && (message["status"] = "sent");
+      message.from === userInfo.native_id && (message["status"] = "sent");
       store.dispatch(addMessage(message));
 
       let countOfNewMessages = 0;
       message.cid === this.currentChatId
         ? api.markConversationAsRead({ cid: this.currentChatId })
-        : (countOfNewMessages = message.from === userInfo._id ? 0 : 1);
+        : (countOfNewMessages = message.from === userInfo.native_id ? 0 : 1);
       store.dispatch(
         updateLastMessageField({
           cid: message.cid,
@@ -66,7 +66,7 @@ class MessagesService {
         store.dispatch(
           upsertChat({
             _id: message.cid,
-            participants: [...conv.participants, user._id],
+            participants: [...conv.participants, user.native_id],
           })
         );
       }
@@ -75,7 +75,7 @@ class MessagesService {
         store.dispatch(
           upsertChat({
             _id: message.cid,
-            participants: conv.participants.filter((uId) => uId !== user._id),
+            participants: conv.participants.filter((uId) => uId !== user.native_id),
           })
         );
       }
@@ -154,7 +154,7 @@ class MessagesService {
               store.dispatch(
                 upsertParticipants({
                   cid: this.currentChatId,
-                  participants: arr.map((obj) => obj._id),
+                  participants: arr.map((obj) => obj.native_id),
                 })
               )
             );
diff --git a/src/store/Participants.js b/src/store/Participants.js
index 4dcaa8c7..ebc23a85 100644
--- a/src/store/Participants.js
+++ b/src/store/Participants.js
@@ -1,8 +1,8 @@
 import { createEntityAdapter, createSlice } from "@reduxjs/toolkit";
 
 export const participantsAdapter = createEntityAdapter({
-  selectId: ({ _id }) => _id,
-  sortComparer: (a, b) => a._id.localeCompare(b._id),
+  selectId: ({ _id, native_id }) => native_id,
+  sortComparer: (a, b) => typeof a.native_id === 'string' ? a.native_id.localeCompare(b.native_id) : a.native_id - b.native_id,
 });
 
 export const {