diff --git a/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/apps/detailed-rating/DetailedRating.js b/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/apps/detailed-rating/DetailedRating.js
index d7a4056c30..4854bb7dc2 100644
--- a/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/apps/detailed-rating/DetailedRating.js
+++ b/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/apps/detailed-rating/DetailedRating.js
@@ -1,5 +1,5 @@
 import React from "react";
-import {Row, Typography, Icon} from "antd";
+import {Row, Typography, Icon, message} from "antd";
 import StarRatings from "react-star-ratings";
 import "./DetailedRating.css";
 import config from "../../../../public/conf/config.json";
@@ -41,8 +41,10 @@ class DetailedRating extends React.Component{
             }
 
         }).catch(function (error) {
-            if (error.response.status === 401) {
+            if (error.hasOwnProperty("response") && error.response.status === 401) {
                 window.location.href = config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort+'/publisher/login';
+            } else {
+                message.error('Something went wrong while trying to load rating for the release... :(');
             }
         });
     };
diff --git a/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/apps/list-apps/AppDetailsDrawer/AppDetailsDrawer.js b/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/apps/list-apps/AppDetailsDrawer/AppDetailsDrawer.js
index d9eed2d699..15ccc40718 100644
--- a/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/apps/list-apps/AppDetailsDrawer/AppDetailsDrawer.js
+++ b/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/apps/list-apps/AppDetailsDrawer/AppDetailsDrawer.js
@@ -92,10 +92,8 @@ class AppDetailsDrawer extends React.Component {
 
     getCategories = () => {
         axios.get(
-            config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + config.serverConfig.invoker.uri + config.serverConfig.invoker.publisher + "/applications/categories",
-            {
-                headers: {'X-Platform': config.serverConfig.platform}
-            }).then(res => {
+            config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + config.serverConfig.invoker.uri + config.serverConfig.invoker.publisher + "/applications/categories"
+        ).then(res => {
             if (res.status === 200) {
                 const categories = JSON.parse(res.data.data);
 
@@ -115,10 +113,10 @@ class AppDetailsDrawer extends React.Component {
             }
 
         }).catch((error) => {
-            if (error.response.status === 401) {
+            if (error.hasOwnProperty("response") && error.response.status === 401) {
                 window.location.href = config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + '/publisher/login';
             } else {
-                message.warning('Something went wrong');
+                message.warning('Something went wrong while trying to load app details... :(');
 
             }
             this.setState({
@@ -129,10 +127,8 @@ class AppDetailsDrawer extends React.Component {
 
     getTags = () => {
         axios.get(
-            config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + config.serverConfig.invoker.uri + config.serverConfig.invoker.publisher + "/applications/tags",
-            {
-                headers: {'X-Platform': config.serverConfig.platform}
-            }).then(res => {
+            config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + config.serverConfig.invoker.uri + config.serverConfig.invoker.publisher + "/applications/tags"
+        ).then(res => {
             if (res.status === 200) {
                 const tags = JSON.parse(res.data.data);
 
@@ -152,10 +148,10 @@ class AppDetailsDrawer extends React.Component {
             }
 
         }).catch((error) => {
-            if (error.response.status === 401) {
+            if (error.hasOwnProperty("response") && error.response.status === 401) {
                 window.location.href = config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + '/publisher/login';
             } else {
-                message.warning('Something went wrong');
+                message.warning('Something went wrong when trying to load tags.');
 
             }
             this.setState({
@@ -172,14 +168,12 @@ class AppDetailsDrawer extends React.Component {
             const data = {name: name};
             axios.put(
                 config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + config.serverConfig.invoker.uri + config.serverConfig.invoker.publisher + "/applications/" + id,
-                data,
-                {
-                    headers: {'X-Platform': config.serverConfig.platform}
-                }
+                data
             ).then(res => {
                 if (res.status === 200) {
                     notification["success"]({
-                        message: 'Saved!'
+                        message: 'Saved!',
+                        description: 'App name updated successfully!'
                     });
                     this.setState({
                         loading: false,
@@ -192,7 +186,7 @@ class AppDetailsDrawer extends React.Component {
                     message.error('You are not logged in');
                     window.location.href = config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + '/publisher/login';
                 } else {
-                    message.error('Something went wrong... :(');
+                    message.error('Something went wrong when trying to save the app name... :(');
                 }
 
                 this.setState({loading: false});
@@ -231,7 +225,6 @@ class AppDetailsDrawer extends React.Component {
         });
     };
 
-
     // handle description change
     handleCategoryChange = (temporaryCategories) => {
         this.setState({temporaryCategories})
@@ -250,14 +243,12 @@ class AppDetailsDrawer extends React.Component {
             const data = {categories: temporaryCategories};
             axios.put(
                 config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + config.serverConfig.invoker.uri + config.serverConfig.invoker.publisher + "/applications/" + id,
-                data,
-                {
-                    headers: {'X-Platform': config.serverConfig.platform}
-                }
+                data
             ).then(res => {
                 if (res.status === 200) {
                     notification["success"]({
-                        message: 'Saved!'
+                        message: 'Saved!',
+                        description: 'App categories updated successfully!'
                     });
                     this.setState({
                         loading: false,
@@ -271,7 +262,7 @@ class AppDetailsDrawer extends React.Component {
                     message.error('You are not logged in');
                     window.location.href = config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + '/publisher/login';
                 } else {
-                    message.error('Something went wrong... :(');
+                    message.error('Something went wrong when trying to updating categories');
                 }
 
                 this.setState({loading: false});
@@ -297,7 +288,7 @@ class AppDetailsDrawer extends React.Component {
         this.setState({temporaryTags})
     };
 
-    // change app categories
+    // change app tags
     handleTagsSave = () => {
         const {id} = this.props.app;
         const {temporaryTags, tags} = this.state;
@@ -311,14 +302,12 @@ class AppDetailsDrawer extends React.Component {
             const data = {tags: temporaryTags};
             axios.put(
                 config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + config.serverConfig.invoker.uri + config.serverConfig.invoker.publisher + "/applications/" + id,
-                data,
-                {
-                    headers: {'X-Platform': config.serverConfig.platform}
-                }
+                data
             ).then(res => {
                 if (res.status === 200) {
                     notification["success"]({
-                        message: 'Saved!'
+                        message: 'Saved!',
+                        description: 'App tags updated successfully!'
                     });
                     this.setState({
                         loading: false,
@@ -331,7 +320,7 @@ class AppDetailsDrawer extends React.Component {
                     message.error('You are not logged in');
                     window.location.href = config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + '/publisher/login';
                 } else {
-                    message.error('Something went wrong... :(');
+                    message.error('Something went wrong when trying to update tags');
                 }
 
                 this.setState({loading: false});
@@ -349,14 +338,12 @@ class AppDetailsDrawer extends React.Component {
             const data = {description: temporaryDescription};
             axios.put(
                 config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + config.serverConfig.invoker.uri + config.serverConfig.invoker.publisher + "/applications/" + id,
-                data,
-                {
-                    headers: {'X-Platform': config.serverConfig.platform}
-                }
+                data
             ).then(res => {
                 if (res.status === 200) {
                     notification["success"]({
-                        message: 'Saved!'
+                        message: 'Saved!',
+                        description: 'App description updated successfully!'
                     });
                     this.setState({
                         loading: false,
@@ -526,7 +513,8 @@ class AppDetailsDrawer extends React.Component {
                             <span>{
                                 categories.map(category => {
                                     return (
-                                        <Tag color={pSBC ( 0.30, config.theme.primaryColor )} key={category} style={{marginBottom: 5}}>
+                                        <Tag color={pSBC(0.30, config.theme.primaryColor)} key={category}
+                                             style={{marginBottom: 5}}>
                                             {category}
                                         </Tag>
                                     );
diff --git a/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/apps/list-apps/Filters.js b/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/apps/list-apps/Filters.js
index 0160917564..818072ee20 100644
--- a/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/apps/list-apps/Filters.js
+++ b/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/apps/list-apps/Filters.js
@@ -1,10 +1,10 @@
 import React from "react";
-import {Avatar, Card, Col, Row, Table, Typography, Input, Divider, Icon, Select, Button, Form, message, Radio} from "antd";
+import {Card, Col, Row,Typography, Input, Divider, Icon, Select, Button, Form, message, Radio} from "antd";
 import axios from "axios";
 import config from "../../../../public/conf/config.json";
 
 const {Option} = Select;
-const {Title, Text} = Typography;
+const {Title} = Typography;
 
 
 class FiltersForm extends React.Component {
@@ -49,10 +49,8 @@ class FiltersForm extends React.Component {
 
     getCategories = () => {
         axios.get(
-            config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + config.serverConfig.invoker.uri + config.serverConfig.invoker.publisher + "/applications/categories",
-            {
-                headers: {'X-Platform': config.serverConfig.platform}
-            }).then(res => {
+            config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + config.serverConfig.invoker.uri + config.serverConfig.invoker.publisher + "/applications/categories"
+        ).then(res => {
             if (res.status === 200) {
                 let categories = JSON.parse(res.data.data);
                 this.setState({
@@ -62,10 +60,10 @@ class FiltersForm extends React.Component {
             }
 
         }).catch((error) => {
-            if (error.response.status === 401) {
+            if (error.hasOwnProperty("response") && error.response.status === 401) {
                 window.location.href = config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + '/publisher/login';
             } else {
-                message.warning('Something went wrong');
+                message.warning('Something went wrong while trying to load categories... :(');
 
             }
             this.setState({
@@ -76,10 +74,8 @@ class FiltersForm extends React.Component {
 
     getTags = () => {
         axios.get(
-            config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + config.serverConfig.invoker.uri + config.serverConfig.invoker.publisher + "/applications/tags",
-            {
-                headers: {'X-Platform': config.serverConfig.platform}
-            }).then(res => {
+            config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + config.serverConfig.invoker.uri + config.serverConfig.invoker.publisher + "/applications/tags"
+        ).then(res => {
             if (res.status === 200) {
                 let tags = JSON.parse(res.data.data);
                 this.setState({
@@ -89,10 +85,10 @@ class FiltersForm extends React.Component {
             }
 
         }).catch((error) => {
-            if (error.response.status === 401) {
+            if (error.hasOwnProperty("response") && error.response.status === 401) {
                 window.location.href = config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + '/publisher/login';
             } else {
-                message.warning('Something went wrong');
+                message.warning('Something went wrong when trying to load tags');
 
             }
             this.setState({
@@ -104,10 +100,8 @@ class FiltersForm extends React.Component {
 
     getDeviceTypes = () => {
         axios.get(
-            config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + config.serverConfig.invoker.uri + config.serverConfig.invoker.deviceMgt + "/device-types",
-            {
-                headers: {'X-Platform': config.serverConfig.platform}
-            }).then(res => {
+            config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + config.serverConfig.invoker.uri + config.serverConfig.invoker.deviceMgt + "/device-types"
+        ).then(res => {
             if (res.status === 200) {
                 const deviceTypes = JSON.parse(res.data.data);
                 this.setState({
@@ -117,10 +111,10 @@ class FiltersForm extends React.Component {
             }
 
         }).catch((error) => {
-            if (error.response.status === 401) {
+            if (error.hasOwnProperty("response") && error.response.status === 401) {
                 window.location.href = config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + '/publisher/login';
             } else {
-                message.warning('Something went wrong');
+                message.warning('Something went wrong when trying to load device types');
 
             }
             this.setState({
diff --git a/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/apps/list-apps/appsTable/AppsTable.js b/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/apps/list-apps/appsTable/AppsTable.js
index 033c05cd85..d62cc350e9 100644
--- a/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/apps/list-apps/appsTable/AppsTable.js
+++ b/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/apps/list-apps/appsTable/AppsTable.js
@@ -1,5 +1,5 @@
 import React from "react";
-import {Avatar, Card, Col, Row, Table, Typography, Tag, Icon, message} from "antd";
+import {Avatar, Table, Tag, Icon, message} from "antd";
 import axios from "axios";
 import pSBC from 'shade-blend-color';
 import config from "../../../../../public/conf/config.json";
@@ -155,7 +155,7 @@ class AppsTable extends React.Component {
                 message.error('You are not logged in');
                 window.location.href = config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort+'/publisher/login';
             } else {
-                message.error('Something went wrong... :(');
+                message.error('Something went wrong while trying to load apps... :(');
             }
 
             this.setState({loading: false});
diff --git a/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/apps/release/lifeCycle/LifeCycle.js b/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/apps/release/lifeCycle/LifeCycle.js
index 1d5fbcb427..c419d29271 100644
--- a/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/apps/release/lifeCycle/LifeCycle.js
+++ b/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/apps/release/lifeCycle/LifeCycle.js
@@ -55,10 +55,9 @@ class LifeCycle extends React.Component {
 
 
     fetchData = () => {
-        axios.get(config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + config.serverConfig.invoker.uri + config.serverConfig.invoker.publisher + "/applications/lifecycle-config",
-            {
-                headers: {'X-Platform': config.serverConfig.platform}
-            }).then(res => {
+        axios.get(
+            config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + config.serverConfig.invoker.uri + config.serverConfig.invoker.publisher + "/applications/lifecycle-config"
+        ).then(res => {
             if (res.status === 200) {
                 const lifecycle = res.data.data;
                 this.setState({
@@ -69,6 +68,8 @@ class LifeCycle extends React.Component {
         }).catch(function (error) {
             if (error.hasOwnProperty("response") && error.response.status === 401) {
                 window.location.href = config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + '/publisher/login';
+            } else {
+                message.error('Something went wrong when trying to load lifecycle configuration');
             }
         });
     };
@@ -105,11 +106,10 @@ class LifeCycle extends React.Component {
             isConfirmButtonLoading: true,
         });
 
-        axios.post(config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + config.serverConfig.invoker.uri + config.serverConfig.invoker.publisher + "/applications/life-cycle/" + uuid,
-            data,
-            {
-                headers: {'X-Platform': config.serverConfig.platform}
-            }).then(res => {
+        axios.post(
+            config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + config.serverConfig.invoker.uri + config.serverConfig.invoker.publisher + "/applications/life-cycle/" + uuid,
+            data
+        ).then(res => {
             if (res.status === 201) {
                 this.setState({
                     isReasonModalVisible: false,
@@ -133,7 +133,7 @@ class LifeCycle extends React.Component {
                 notification["error"]({
                     message: "Error",
                     description:
-                        "Something went wrong",
+                        "Something went wrong when trying to add lifecycle",
                 });
             }
             this.setState({
diff --git a/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/apps/release/review/Reviews.js b/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/apps/release/review/Reviews.js
index 743be28680..19b508cc21 100644
--- a/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/apps/release/review/Reviews.js
+++ b/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/apps/release/review/Reviews.js
@@ -31,20 +31,18 @@ class Reviews extends React.Component {
         const {uuid, type} = this.props;
 
         axios.get(
-            config.serverConfig.protocol + "://"+config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + config.serverConfig.invoker.uri +config.serverConfig.invoker.publisher+"/admin/reviews/"+type+"/"+uuid,
-            {
-                headers: {'X-Platform': config.serverConfig.platform}
-            }).then(res => {
+            config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + config.serverConfig.invoker.uri + config.serverConfig.invoker.publisher + "/admin/reviews/" + type + "/" + uuid
+        ).then(res => {
             if (res.status === 200) {
                 let reviews = res.data.data.data;
                 callback(reviews);
             }
 
         }).catch(function (error) {
-            if (error.response.status === 401) {
+            if (error.hasOwnProperty("response") && error.response.status === 401) {
                 window.location.href = config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + '/publisher/login';
             } else {
-                message.warning('Something went wrong');
+                message.warning('Something went wrong when trying to load reviews');
 
             }
         });
diff --git a/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/manage/categories/ManageCategories.js b/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/manage/categories/ManageCategories.js
index 6edc414cbc..3711368638 100644
--- a/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/manage/categories/ManageCategories.js
+++ b/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/manage/categories/ManageCategories.js
@@ -33,7 +33,7 @@ class ManageCategories extends React.Component {
             }
 
         }).catch((error) => {
-            if (error.response.status === 401) {
+            if (error.hasOwnProperty("response") && error.response.status === 401) {
                 window.location.href = config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort+'/publisher/login';
             } else {
                 message.warning('Something went wrong');
@@ -80,11 +80,11 @@ class ManageCategories extends React.Component {
             }
 
         }).catch((error) => {
-            if (error.response.hasOwnProperty("status") && error.response.status === 401) {
+            if (error.hasOwnProperty("response") && error.response.status === 401) {
                 message.error('You are not logged in');
                 window.location.href = config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort+'/publisher/login';
             } else {
-                message.warning('Something went wrong');
+                message.warning('Something went wrong when trying to load categories');
             }
             this.setState({
                 loading: false
@@ -219,11 +219,11 @@ class ManageCategories extends React.Component {
             }
 
         }).catch((error) => {
-            if (error.response.hasOwnProperty("status") && error.response.status === 401) {
+            if (error.hasOwnProperty("response") && error.response.status === 401) {
                 message.error('You are not logged in');
                 window.location.href = config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort+'/publisher/login';
             } else {
-                message.warning('Something went wrong');
+                message.warning('Something went wrong when trying to add categories');
             }
             this.setState({
                 loading: false
@@ -281,11 +281,11 @@ class ManageCategories extends React.Component {
             }
 
         }).catch((error) => {
-            if (error.response.hasOwnProperty("status") && error.response.status === 401) {
+            if (error.hasOwnProperty("response") && error.response.status === 401) {
                 message.error('You are not logged in');
                 window.location.href = config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort+'/publisher/login';
             } else {
-                message.warning('Something went wrong');
+                message.warning('Something went wrong when trying to delete the category');
             }
             this.setState({
                 loading: false,
diff --git a/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/manage/categories/ManageTags.js b/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/manage/categories/ManageTags.js
index e2a7e14993..e3c1595082 100644
--- a/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/manage/categories/ManageTags.js
+++ b/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/manage/categories/ManageTags.js
@@ -32,10 +32,10 @@ class ManageTags extends React.Component {
             }
 
         }).catch((error) => {
-            if (error.response.status === 401) {
+            if (error.hasOwnProperty("response") && error.response.status === 401) {
                 window.location.href = config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort+'/publisher/login';
             } else {
-                message.warning('Something went wrong');
+                message.warning('Something went wrong when trying to load tags');
 
             }
             this.setState({
@@ -58,10 +58,8 @@ class ManageTags extends React.Component {
         });
 
         axios.delete(
-            config.serverConfig.protocol + "://"+config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + config.serverConfig.invoker.uri +config.serverConfig.invoker.publisher+"/admin/applications/tags/"+id,
-            {
-                headers: {'X-Platform': config.serverConfig.platform}
-            }).then(res => {
+            config.serverConfig.protocol + "://"+config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + config.serverConfig.invoker.uri +config.serverConfig.invoker.publisher+"/admin/applications/tags/"+id
+        ).then(res => {
             if (res.status === 200) {
                 notification["success"]({
                     message: "Done!",
@@ -82,11 +80,11 @@ class ManageTags extends React.Component {
             }
 
         }).catch((error) => {
-            if (error.response.hasOwnProperty("status") && error.response.status === 401) {
+            if (error.hasOwnProperty("response") && error.response.status === 401) {
                 message.error('You are not logged in');
                 window.location.href = config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort+'/publisher/login';
             } else {
-                message.warning('Something went wrong');
+                message.warning('Something went wrong when trying to delete the tag');
             }
             this.setState({
                 loading: false
@@ -219,11 +217,11 @@ class ManageTags extends React.Component {
             }
 
         }).catch((error) => {
-            if (error.response.hasOwnProperty("status") && error.response.status === 401) {
+            if (error.hasOwnProperty("response") && error.response.status === 401) {
                 message.error('You are not logged in');
                 window.location.href = config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort+'/publisher/login';
             } else {
-                message.warning('Something went wrong');
+                message.warning('Something went wrong when trying to delete tag');
             }
             this.setState({
                 loading: false
@@ -281,11 +279,11 @@ class ManageTags extends React.Component {
             }
 
         }).catch((error) => {
-            if (error.response.hasOwnProperty("status") && error.response.status === 401) {
+            if (error.hasOwnProperty("response") && error.response.status === 401) {
                 message.error('You are not logged in');
                 window.location.href = config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort+'/publisher/login';
             } else {
-                message.warning('Something went wrong');
+                message.warning('Something went wrong when trying to edit tag');
             }
             this.setState({
                 loading: false,
diff --git a/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/new-app/AddNewAppForm.js b/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/new-app/AddNewAppForm.js
index 74856e99b8..95887548e0 100644
--- a/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/new-app/AddNewAppForm.js
+++ b/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/new-app/AddNewAppForm.js
@@ -54,10 +54,8 @@ class AddNewAppFormComponent extends React.Component {
 
     getCategories = () => {
         axios.get(
-            config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + config.serverConfig.invoker.uri + config.serverConfig.invoker.publisher + "/applications/categories",
-            {
-                headers: {'X-Platform': config.serverConfig.platform}
-            }).then(res => {
+            config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + config.serverConfig.invoker.uri + config.serverConfig.invoker.publisher + "/applications/categories"
+        ).then(res => {
             if (res.status === 200) {
                 let categories = JSON.parse(res.data.data);
                 this.setState({
@@ -67,10 +65,10 @@ class AddNewAppFormComponent extends React.Component {
             }
 
         }).catch((error) => {
-            if (error.response.status === 401) {
+            if (error.hasOwnProperty("response") && error.response.status === 401) {
                 window.location.href = config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + '/publisher/login';
             } else {
-                message.warning('Something went wrong');
+                message.warning('Something went wrong when trying to load categories');
 
             }
             this.setState({
@@ -81,10 +79,8 @@ class AddNewAppFormComponent extends React.Component {
 
     getTags = () => {
         axios.get(
-            config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + config.serverConfig.invoker.uri + config.serverConfig.invoker.publisher + "/applications/tags",
-            {
-                headers: {'X-Platform': config.serverConfig.platform}
-            }).then(res => {
+            config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + config.serverConfig.invoker.uri + config.serverConfig.invoker.publisher + "/applications/tags"
+        ).then(res => {
             if (res.status === 200) {
                 let tags = JSON.parse(res.data.data);
                 this.setState({
@@ -94,10 +90,10 @@ class AddNewAppFormComponent extends React.Component {
             }
 
         }).catch((error) => {
-            if (error.response.status === 401) {
+            if (error.hasOwnProperty("response") && error.response.status === 401) {
                 window.location.href = config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + '/publisher/login';
             } else {
-                message.warning('Something went wrong');
+                message.warning('Something went wrong when trying to load tags');
 
             }
             this.setState({
@@ -209,7 +205,7 @@ class AddNewAppFormComponent extends React.Component {
                     }
 
                 }).catch((error) => {
-                    if (error.response.status === 401) {
+                    if (error.hasOwnProperty("response") && error.response.status === 401) {
                         window.location.href = config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + '/publisher/login';
                     } else {
                         notification["error"]({
diff --git a/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/js/actions/index.js b/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/js/actions/index.js
index 79690cc148..f810921f45 100644
--- a/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/js/actions/index.js
+++ b/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/js/actions/index.js
@@ -1,12 +1,15 @@
 import axios from "axios";
 import ActionTypes from "../constants/ActionTypes";
 import config from "../../../public/conf/config.json";
+import {message} from "antd";
 
 export const getApps = () => dispatch => {
 
     const request = "method=post&content-type=application/json&payload={}&api-endpoint=/application-mgt-publisher/v1.0/applications";
 
-    return axios.post(config.serverConfig.protocol + "://"+config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + config.serverConfig.invoker.uri +config.serverConfig.invoker.publisher, request
+    return axios.post(
+        config.serverConfig.protocol + "://"+config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + config.serverConfig.invoker.uri +config.serverConfig.invoker.publisher,
+        request
     ).then(res => {
         if (res.status === 200) {
             let apps = [];
@@ -18,8 +21,10 @@ export const getApps = () => dispatch => {
         }
 
     }).catch(function (error) {
-        if (error.response.status === 401) {
+        if (error.hasOwnProperty("response") && error.response.status === 401) {
             window.location.href = config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort+'/publisher/login';
+        } else {
+            message.error('Something went wrong when trying to load applications... :(');
         }
     });
 
@@ -29,7 +34,8 @@ export const getRelease = (uuid) => dispatch => {
 
     const request = "method=get&content-type=application/json&payload={}&api-endpoint=/application-mgt-publisher/v1.0/applications/release/" + uuid;
 
-    return axios.post(config.serverConfig.protocol + "://"+config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + config.serverConfig.invoker.uri +config.serverConfig.invoker.publisher, request
+    return axios.post(
+        config.serverConfig.protocol + "://"+config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + config.serverConfig.invoker.uri +config.serverConfig.invoker.publisher, request
     ).then(res => {
         if (res.status === 200) {
             let release = res.data.data;
@@ -37,8 +43,10 @@ export const getRelease = (uuid) => dispatch => {
         }
 
     }).catch(function (error) {
-        if (error.response.status === 401) {
+        if (error.hasOwnProperty("response") && error.response.status === 401) {
             window.location.href = config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort+'/publisher/login';
+        } else {
+            message.error('Something went wrong... :(');
         }
     });
 
@@ -73,7 +81,8 @@ export const closeLifecycleModal = () => dispatch => {
 export const getLifecycle = () => dispatch => {
     const request = "method=get&content-type=application/json&payload={}&api-endpoint=/application-mgt-publisher/v1.0/applications/lifecycle-config";
 
-    return axios.post(config.serverConfig.protocol + "://"+config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + config.serverConfig.invoker.uri +config.serverConfig.invoker.publisher, request
+    return axios.post(
+        config.serverConfig.protocol + "://"+config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + config.serverConfig.invoker.uri +config.serverConfig.invoker.publisher, request
     ).then(res => {
         if (res.status === 200) {
             let lifecycle = res.data.data;
@@ -81,8 +90,10 @@ export const getLifecycle = () => dispatch => {
         }
 
     }).catch(function (error) {
-        if (error.response.status === 401) {
+        if (error.hasOwnProperty("response") && error.response.status === 401) {
             window.location.href = config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort+'/publisher/login';
+        } else {
+            message.error('Something went wrong... :(');
         }
     });
 };
@@ -97,7 +108,8 @@ export const updateLifecycleState = (uuid, nextState, reason) => dispatch => {
     const request = "method=post&content-type=application/json&payload=" + JSON.stringify(payload) + "&api-endpoint=/application-mgt-publisher/v1.0/applications/life-cycle/" + uuid;
 
 
-    return axios.post(config.serverConfig.protocol + "://"+config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + config.serverConfig.invoker.uri +config.serverConfig.invoker.publisher, request
+    return axios.post(
+        config.serverConfig.protocol + "://"+config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + config.serverConfig.invoker.uri +config.serverConfig.invoker.publisher, request
     ).then(res => {
         if (res.status === 201) {
             let release = res.data.data;
@@ -110,7 +122,7 @@ export const updateLifecycleState = (uuid, nextState, reason) => dispatch => {
         }
 
     }).catch(function (error) {
-        if (error.response.status === 401) {
+        if (error.hasOwnProperty("response") && error.response.status === 401) {
             window.location.href = config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort+'/publisher/login';
         } else if (error.response.status === 500) {
             alert("error");
diff --git a/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/pages/Login.js b/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/pages/Login.js
index c13c1d9827..cc7782747f 100644
--- a/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/pages/Login.js
+++ b/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/pages/Login.js
@@ -1,5 +1,5 @@
 import React from "react";
-import {Typography, Row, Col, Form, Icon, Input, Button, Checkbox} from 'antd';
+import {Typography, Row, Col, Form, Icon, Input, Button, Checkbox, message} from 'antd';
 import './Login.css';
 import axios from 'axios';
 import config from "../../public/conf/config.json";
@@ -12,14 +12,11 @@ class Login extends React.Component {
     render() {
         return (
             <div>
-                <div
-                    className="background"
-                >
+                <div className="background">
                 </div>
                 <div className="content">
                     <Row>
                         <Col xs={3} sm={3} md={10}>
-
                         </Col>
                         <Col xs={18} sm={18} md={4}>
                             <Row style={{marginBottom: 20}}>
@@ -35,7 +32,6 @@ class Login extends React.Component {
                             </Row>
                             <Title level={2}>Login</Title>
                             <WrappedNormalLoginForm/>
-
                         </Col>
                     </Row>
                     <Row>
@@ -80,17 +76,21 @@ class NormalLoginForm extends React.Component {
                 const request = Object.keys(parameters).map(key => key + '=' + parameters[key]).join('&');
 
                 axios.post(config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + config.serverConfig.loginUri, request
-                ).then(res => {
+                ).then(res=>{
                     if (res.status === 200) {
                         window.location = res.data.url;
                     }
                 }).catch(function (error) {
-                    if (error.response.status === 400) {
+                    if (error.hasOwnProperty("response") && error.response.status === 400) {
                         thisForm.setState({
-                            inValid: true,
-                            loading: false
+                            inValid: true
                         });
+                    } else {
+                        message.error('Something went wrong when trying to login... :(');
                     }
+                    thisForm.setState({
+                        loading: false
+                    });
                 });
             }
 
@@ -111,7 +111,7 @@ class NormalLoginForm extends React.Component {
             <Form onSubmit={this.handleSubmit} className="login-form">
                 <Form.Item>
                     {getFieldDecorator('username', {
-                        rules: [{required: true, message: 'Please input your username!'}],
+                        rules: [{required: true, message: 'Please enter your username'}],
                     })(
                         <Input style={{height: 32}} prefix={<Icon type="user" style={{color: 'rgba(0,0,0,.25)'}}/>}
                                placeholder="Username"/>
@@ -119,7 +119,7 @@ class NormalLoginForm extends React.Component {
                 </Form.Item>
                 <Form.Item>
                     {getFieldDecorator('password', {
-                        rules: [{required: true, message: 'Please input your Password!'}],
+                        rules: [{required: true, message: 'Please enter your password'}],
                     })(
                         <Input style={{height: 32}}
                                prefix={<Icon type="lock" style={{color: 'rgba(0,0,0,.25)'}}/>} type="password"
diff --git a/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/pages/dashboard/apps/release/Release.js b/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/pages/dashboard/apps/release/Release.js
index 5f88170483..1fa7e5656e 100644
--- a/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/pages/dashboard/apps/release/Release.js
+++ b/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/pages/dashboard/apps/release/Release.js
@@ -47,9 +47,6 @@ class Release extends React.Component {
         //send request to the invoker
         axios.get(
             config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + config.serverConfig.invoker.uri + config.serverConfig.invoker.publisher + "/applications/release/"+ uuid,
-            {
-                headers: {'X-Platform': config.serverConfig.platform}
-            }
         ).then(res => {
             if (res.status === 200) {
                 const app = res.data.data;
@@ -70,7 +67,7 @@ class Release extends React.Component {
                 message.error('You are not logged in');
                 window.location.href = config.serverConfig.protocol + "://" + config.serverConfig.hostname + ':' + config.serverConfig.httpsPort + '/publisher/login';
             } else {
-                message.error('Something went wrong... :(');
+                message.error('Something went wrong when trying to load the release... :(');
             }
 
             this.setState({loading: false});