diff --git a/web/ASC.Web.Client/src/components/pages/Settings/categories/common/settingsCustomization/portal-renaming.js b/web/ASC.Web.Client/src/components/pages/Settings/categories/common/settingsCustomization/portal-renaming.js
index fc7520b2f9..dbcdcb537b 100644
--- a/web/ASC.Web.Client/src/components/pages/Settings/categories/common/settingsCustomization/portal-renaming.js
+++ b/web/ASC.Web.Client/src/components/pages/Settings/categories/common/settingsCustomization/portal-renaming.js
@@ -1,12 +1,28 @@
-import React, { useState } from "react";
+import React, { useState, useEffect } from "react";
 import { withTranslation } from "react-i18next";
 import styled from "styled-components";
 import Loader from "@appserver/components/loader";
+import toastr from "@appserver/components/toast/toastr";
 import HelpButton from "@appserver/components/help-button";
 import FieldContainer from "@appserver/components/field-container";
 import TextInput from "@appserver/components/text-input";
 import SaveCancelButtons from "@appserver/components/save-cancel-buttons";
 import { inject, observer } from "mobx-react";
+import { combineUrl } from "@appserver/common/utils";
+import { AppServerConfig } from "@appserver/common/constants";
+import config from "../../../../../../../package.json";
+import history from "@appserver/common/history";
+import { isMobileOnly } from "react-device-detect";
+import Text from "@appserver/components/text";
+import Link from "@appserver/components/link";
+import { isSmallTablet } from "@appserver/components/utils/device";
+import checkScrollSettingsBlock from "../utils";
+import {
+  StyledSettingsComponent,
+  StyledScrollbar,
+  StyledArrowRightIcon,
+} from "./StyledSettings";
+import { saveToSessionStorage, getFromSessionStorage } from "../../../utils";
 
 const StyledComponent = styled.div`
   .settings-block {
@@ -20,51 +36,229 @@ const StyledComponent = styled.div`
   .combo-button-label {
     max-width: 100%;
   }
+
+  .error {
+    font-weight: 400;
+    font-size: 10px;
+    line-height: 14px;
+    color: #f21c0e;
+  }
 `;
 
-const PortalRenaming = ({ t, theme, sectionWidth }) => {
+const PortalRenaming = ({ t, setPortalRename, isMobileView }) => {
   // TODO: Change false
   const [isLoadedData, setIsLoadedData] = useState(true);
-  const [portalName, setPortalName] = useState();
+  const [isLoadingPortalNameSave, setIsLoadingPortalNameSave] = useState(false);
 
+  const portalNameFromSessionStorage = getFromSessionStorage("portalName");
+  const portalNameDefaultFromSessionStorage = getFromSessionStorage(
+    "portalNameDefault"
+  );
+
+  const errorValueFromSessionStorage = getFromSessionStorage("errorValue");
+
+  const [portalName, setPortalName] = useState(portalNameFromSessionStorage);
+  const [portalNameDefault, setPortalNameDefault] = useState(
+    portalNameDefaultFromSessionStorage || portalName
+  );
+
+  const [showReminder, setShowReminder] = useState(false);
+  const [hasScroll, setHasScroll] = useState(false);
+  const [errorValue, setErrorValue] = useState(errorValueFromSessionStorage);
+
+  //TODO: Add translation
+  const accountNameError = "Account name is empty";
+  const lengthNameError =
+    "The account name must be between 6 and 50 characters long";
+
+  useEffect(() => {
+    const checkScroll = checkScrollSettingsBlock();
+
+    window.addEventListener("resize", checkInnerWidth);
+    window.addEventListener("resize", checkScroll);
+
+    const scrollPortalName = checkScroll();
+
+    if (scrollPortalName !== hasScroll) {
+      setHasScroll(scrollPortalName);
+    }
+
+    return () =>
+      window.removeEventListener(
+        "resize",
+        checkInnerWidth,
+        checkScrollSettingsBlock
+      );
+  }, []);
+
+  //TODO: Need a method to get the portal name
   const onSavePortalRename = () => {
-    // setPortalRename("waw");
+    setIsLoadingPortalNameSave(true);
+
+    setPortalRename(portalName)
+      .then(() => toastr.success(t("SuccessfullySavePortalNameMessage")))
+      .catch((error) => {
+        //TODO: Add translation
+        setErrorValue("Incorrect account name");
+        saveToSessionStorage("errorValue", "Incorrect account name");
+      })
+      .finally(() => setIsLoadingPortalNameSave(false));
+
+    setShowReminder(false);
+    setPortalName(portalName);
+    setPortalNameDefault(portalName);
+
+    saveToSessionStorage("portalName", portalName);
+    saveToSessionStorage("portalNameDefault", portalName);
   };
 
+  const onCancelPortalName = () => {
+    const portalNameFromSessionStorage = getFromSessionStorage("portalName");
+
+    if (
+      portalNameFromSessionStorage &&
+      !settingIsEqualInitialValue("portalName", portalNameFromSessionStorage)
+    ) {
+      setPortalName(portalNameDefault);
+      saveToSessionStorage("portalName", "");
+    }
+  };
+
+  const onValidateInput = (value) => {
+    switch (true) {
+      case value === "":
+        setErrorValue(accountNameError);
+        saveToSessionStorage("errorValue", accountNameError);
+        break;
+      case value.length < 6 || value.length > 50:
+        setErrorValue(lengthNameError);
+        saveToSessionStorage("errorValue", lengthNameError);
+        break;
+      default:
+        setErrorValue("");
+    }
+  };
+
+  const settingIsEqualInitialValue = (value) => {
+    const defaultValue = JSON.stringify(portalNameDefault);
+    const currentValue = JSON.stringify(value);
+    return defaultValue === currentValue;
+  };
+
+  const onChangePortalName = (e) => {
+    const value = e.target.value;
+
+    onValidateInput(value);
+
+    setPortalName(value);
+
+    if (settingIsEqualInitialValue("portalName", value)) {
+      saveToSessionStorage("portalName", "");
+      saveToSessionStorage("portalNameDefault", "");
+    } else {
+      saveToSessionStorage("portalName", value);
+      setShowReminder(true);
+    }
+  };
+
+  const checkInnerWidth = () => {
+    if (!isSmallTablet()) {
+      history.push(
+        combineUrl(
+          AppServerConfig.proxyURL,
+          config.homepage,
+          "/settings/common/customization"
+        )
+      );
+      return true;
+    }
+  };
+
+  // TODO: Move to a file
+  const onClickLink = (e) => {
+    e.preventDefault();
+    history.push(e.target.pathname);
+  };
+
+  const isMobileViewPortalRenaming = (
+    <div className="category-item-wrapper">
+      <div className="category-item-heading">
+        <Link
+          truncate={true}
+          className="inherit-title-link header"
+          onClick={onClickLink}
+          href={combineUrl(
+            AppServerConfig.proxyURL,
+            "/settings/common/customization/portal-renaming"
+          )}
+        >
+          Portal Renaming
+          {/* {t("CustomTitlesWelcome")} */}
+        </Link>
+        <StyledArrowRightIcon size="small" color="#333333" />
+      </div>
+      <Text className="category-item-description">
+        {/* {t("CustomTitlesSettingsDescription")} */}
+        Here you can change your portal address.
+      </Text>
+    </div>
+  );
+
+  const hasError = errorValue === null ? false : true;
+
+  const settingsBlock = (
+    <div className="settings-block">
+      <FieldContainer
+        id="fieldContainerWelcomePage"
+        className="field-container-width"
+        labelText={`${t("New portal name")}:`}
+        isVertical={true}
+      >
+        <TextInput
+          scale={true}
+          value={portalName}
+          onChange={onChangePortalName}
+          // isDisabled={isLoadingGreetingSave || isLoadingGreetingRestore}
+          placeholder={`${t("room")}`}
+          hasError={hasError}
+        />
+        <div className="error">{errorValue}</div>
+      </FieldContainer>
+    </div>
+  );
+
   return !isLoadedData ? (
     <Loader className="pageLoader" type="rombs" size="40px" />
+  ) : isMobileView ? (
+    isMobileViewPortalRenaming
   ) : (
     <>
-      <StyledComponent>
-        <div className="category-item-heading">
-          <div className="category-item-title">{t("Portal Renaming")}</div>
-          <HelpButton
-            iconName="static/images/combined.shape.svg"
-            size={12}
-            // tooltipContent={tooltipCustomTitlesTooltip}
-          />
-        </div>
-        <div className="settings-block">
-          <FieldContainer
-            id="fieldContainerWelcomePage"
-            className="field-container-width"
-            labelText={`${t("New portal name")}:`}
-            isVertical={true}
-          >
-            <TextInput
-              scale={true}
-              // value={greetingTitle}
-              // onChange={onChangePortalName}
-              // isDisabled={isLoadingGreetingSave || isLoadingGreetingRestore}
-              placeholder={`${t("room")}`}
+      <StyledComponent hasScroll={hasScroll} className="category-item-wrapper">
+        {checkInnerWidth() && !isMobileView && (
+          <div className="category-item-heading">
+            <div className="category-item-title">{t("Portal Renaming")}</div>
+            <HelpButton
+              iconName="static/images/combined.shape.svg"
+              size={12}
+              // tooltipContent={tooltipCustomTitlesTooltip}
             />
-          </FieldContainer>
-        </div>
+          </div>
+        )}
+        {(isMobileOnly && isSmallTablet()) || isSmallTablet() ? (
+          <StyledScrollbar stype="smallBlack">{settingsBlock}</StyledScrollbar>
+        ) : (
+          <> {settingsBlock}</>
+        )}
         <SaveCancelButtons
+          className="save-cancel-buttons"
           onSaveClick={onSavePortalRename}
+          onCancelClick={onCancelPortalName}
           saveButtonLabel={t("Common:SaveButton")}
           cancelButtonLabel={t("Common:CancelButton")}
+          showReminder={showReminder}
+          reminderTest={t("YouHaveUnsavedChanges")}
           displaySettings={true}
+          // hasScroll={hasScroll}
         />
       </StyledComponent>
     </>
diff --git a/web/ASC.Web.Client/src/components/pages/Settings/categories/common/settingsCustomization/welcome-page-settings.js b/web/ASC.Web.Client/src/components/pages/Settings/categories/common/settingsCustomization/welcome-page-settings.js
index 7dedda4039..c932371371 100644
--- a/web/ASC.Web.Client/src/components/pages/Settings/categories/common/settingsCustomization/welcome-page-settings.js
+++ b/web/ASC.Web.Client/src/components/pages/Settings/categories/common/settingsCustomization/welcome-page-settings.js
@@ -236,7 +236,7 @@ class WelcomePageSettings extends React.Component {
     const tooltipCustomTitlesTooltip = <CustomTitlesTooltip t={t} />;
 
     // TODO: Move to a file
-    const isMobileViewLanguageTimeSettings = (
+    const isMobileViewWelcomePageSettings = (
       <div className="category-item-wrapper">
         <div className="category-item-heading">
           <Link
@@ -281,7 +281,7 @@ class WelcomePageSettings extends React.Component {
     return !isLoadedData ? (
       <Loader className="pageLoader" type="rombs" size="40px" />
     ) : isMobileView ? (
-      isMobileViewLanguageTimeSettings
+      isMobileViewWelcomePageSettings
     ) : (
       <StyledSettingsComponent
         hasScroll={hasScroll}