diff --git a/ui-ngx/src/app/core/http/entity.service.ts b/ui-ngx/src/app/core/http/entity.service.ts
index 09de886036..c97eeee036 100644
--- a/ui-ngx/src/app/core/http/entity.service.ts
+++ b/ui-ngx/src/app/core/http/entity.service.ts
@@ -53,7 +53,7 @@ import {
   ImportEntityData
 } from '@shared/models/entity.models';
 import { EntityRelationService } from '@core/http/entity-relation.service';
-import { deepClone, generateSecret, guid, isDefined, isDefinedAndNotNull } from '@core/utils';
+import { deepClone, generateSecret, guid, isDefined, isDefinedAndNotNull, isNotEmptyStr } from '@core/utils';
 import { Asset } from '@shared/models/asset.models';
 import { Device, DeviceCredentialsType } from '@shared/models/device.models';
 import { AttributeService } from '@core/http/attribute.service';
@@ -954,7 +954,12 @@ export class EntityService {
           map(() => {
             return { create: { entity: 1 } } as ImportEntitiesResultInfo;
           }),
-          catchError(err => of({ error: { entity: 1 } } as ImportEntitiesResultInfo))
+          catchError(err => of({
+            error: {
+              entity: 1,
+              errors: err.message
+            }
+          } as ImportEntitiesResultInfo))
         );
       }),
       catchError(err => {
@@ -978,13 +983,28 @@ export class EntityService {
                 map(() => {
                   return { update: { entity: 1 } } as ImportEntitiesResultInfo;
                 }),
-                catchError(updateError => of({ error: { entity: 1 } } as ImportEntitiesResultInfo))
+                catchError(updateError => of({
+                  error: {
+                    entity: 1,
+                    errors: updateError.message
+                  }
+                } as ImportEntitiesResultInfo))
               );
             }),
-            catchError(findErr => of({ error: { entity: 1 } } as ImportEntitiesResultInfo))
+            catchError(findErr => of({
+              error: {
+                entity: 1,
+                errors: `Line: ${entityData.lineNumber}; Error: ${findErr.error.message}`
+              }
+            } as ImportEntitiesResultInfo))
           );
         } else {
-          return of({ error: { entity: 1 } } as ImportEntitiesResultInfo);
+          return of({
+            error: {
+              entity: 1,
+              errors: `Line: ${entityData.lineNumber}; Error: ${err.error.message}`
+            }
+          } as ImportEntitiesResultInfo);
         }
       })
     );
@@ -1040,7 +1060,6 @@ export class EntityService {
         break;
     }
     return saveEntityObservable;
-
   }
 
   private getUpdateEntityTasks(entityType: EntityType,  entityData: ImportEntityData | EdgeImportEntityData,
@@ -1113,15 +1132,31 @@ export class EntityService {
   public saveEntityData(entityId: EntityId, entityData: ImportEntityData, config?: RequestConfig): Observable<any> {
     const observables: Observable<string>[] = [];
     let observable: Observable<string>;
-    if (entityData.accessToken && entityData.accessToken !== '') {
+    if (Object.keys(entityData.credential).length) {
+      let credentialsType: DeviceCredentialsType;
+      let credentialsId: string = null;
+      let credentialsValue: string = null;
+      if (isDefinedAndNotNull(entityData.credential.mqtt)) {
+        credentialsType = DeviceCredentialsType.MQTT_BASIC;
+        credentialsValue = JSON.stringify(entityData.credential.mqtt);
+      } else if (isDefinedAndNotNull(entityData.credential.lwm2m)) {
+        credentialsType = DeviceCredentialsType.LWM2M_CREDENTIALS;
+        credentialsValue = JSON.stringify(entityData.credential.lwm2m);
+      } else if (isNotEmptyStr(entityData.credential.x509)) {
+        credentialsType = DeviceCredentialsType.X509_CERTIFICATE;
+        credentialsValue = entityData.credential.x509;
+      } else {
+        credentialsType = DeviceCredentialsType.ACCESS_TOKEN;
+        credentialsId = entityData.credential.accessToken;
+      }
       observable = this.deviceService.getDeviceCredentials(entityId.id, false, config).pipe(
         mergeMap((credentials) => {
-          credentials.credentialsId = entityData.accessToken;
-          credentials.credentialsType = DeviceCredentialsType.ACCESS_TOKEN;
-          credentials.credentialsValue = null;
+          credentials.credentialsId = credentialsId;
+          credentials.credentialsType = credentialsType;
+          credentials.credentialsValue = credentialsValue;
           return this.deviceService.saveDeviceCredentials(credentials, config).pipe(
             map(() => 'ok'),
-            catchError(err => of('error'))
+            catchError(err => of(`Line: ${entityData.lineNumber}; Error: ${err.error.message}`))
           );
         })
       );
@@ -1131,7 +1166,7 @@ export class EntityService {
       observable = this.attributeService.saveEntityAttributes(entityId, AttributeScope.SHARED_SCOPE,
         entityData.attributes.shared, config).pipe(
         map(() => 'ok'),
-        catchError(err => of('error'))
+        catchError(err => of(`Line: ${entityData.lineNumber}; Error: ${err.error.message}`))
       );
       observables.push(observable);
     }
@@ -1139,23 +1174,23 @@ export class EntityService {
       observable = this.attributeService.saveEntityAttributes(entityId, AttributeScope.SERVER_SCOPE,
         entityData.attributes.server, config).pipe(
         map(() => 'ok'),
-        catchError(err => of('error'))
+        catchError(err => of(`Line: ${entityData.lineNumber}; Error: ${err.error.message}`))
       );
       observables.push(observable);
     }
     if (entityData.timeseries && entityData.timeseries.length) {
       observable = this.attributeService.saveEntityTimeseries(entityId, 'time', entityData.timeseries, config).pipe(
         map(() => 'ok'),
-        catchError(err => of('error'))
+        catchError(err => of(`Line: ${entityData.lineNumber}; Error: ${err.error.message}`))
       );
       observables.push(observable);
     }
     if (observables.length) {
       return forkJoin(observables).pipe(
         map((response) => {
-          const hasError = response.filter((status) => status === 'error').length > 0;
-          if (hasError) {
-            throw Error();
+          const hasError = response.filter((status) => status !== 'ok');
+          if (hasError.length > 0) {
+            throw Error(hasError.join('\n'));
           } else {
             return response;
           }
diff --git a/ui-ngx/src/app/modules/home/components/import-export/import-dialog-csv.component.html b/ui-ngx/src/app/modules/home/components/import-export/import-dialog-csv.component.html
index 77f9a43e66..79317b4e3a 100644
--- a/ui-ngx/src/app/modules/home/components/import-export/import-dialog-csv.component.html
+++ b/ui-ngx/src/app/modules/home/components/import-export/import-dialog-csv.component.html
@@ -94,7 +94,7 @@
       <mat-step [stepControl]="columnTypesFormGroup">
         <form [formGroup]="columnTypesFormGroup">
           <ng-template matStepLabel>{{ 'import.stepper-text.column-type' | translate }}</ng-template>
-          <tb-table-columns-assignment formControlName="columnsParam" [entityType]="entityType"></tb-table-columns-assignment>
+          <tb-table-columns-assignment #columnsAssignmentComponent formControlName="columnsParam" [entityType]="entityType"></tb-table-columns-assignment>
         </form>
         <div fxLayout="row wrap" fxLayoutAlign="space-between center">
           <button mat-button
@@ -125,9 +125,20 @@
           <p class="mat-body-1" *ngIf="this.statistical?.update && this.statistical?.update.entity">
             {{ translate.instant('import.message.update-entities', {count: this.statistical.update.entity}) }}
           </p>
-          <p class="mat-body-1" *ngIf="this.statistical?.error && this.statistical?.error.entity">
+          <p class="mat-body-1" style="margin-bottom: 0.8em" *ngIf="this.statistical?.error && this.statistical?.error.entity">
             {{ translate.instant('import.message.error-entities', {count: this.statistical.error.entity}) }}
           </p>
+          <mat-expansion-panel class="advanced-logs" [expanded]="false"
+                               *ngIf="this.statistical?.error && this.statistical?.error.entity"
+                               (opened)="initEditor()">
+            <mat-expansion-panel-header [collapsedHeight]="'38px'" [expandedHeight]="'38px'">
+              <mat-panel-title>
+                <div class="tb-small" translate>import.details</div>
+              </mat-panel-title>
+            </mat-expansion-panel-header>
+            <mat-divider></mat-divider>
+            <div #failureDetailsEditor class="tb-failure-details"></div>
+          </mat-expansion-panel>
         </div>
         <div fxLayout="row" fxLayoutAlign="end center" fxLayoutGap="20px">
           <button mat-raised-button
diff --git a/ui-ngx/src/app/modules/home/components/import-export/import-dialog-csv.component.scss b/ui-ngx/src/app/modules/home/components/import-export/import-dialog-csv.component.scss
index 6af6f0542b..b21343c998 100644
--- a/ui-ngx/src/app/modules/home/components/import-export/import-dialog-csv.component.scss
+++ b/ui-ngx/src/app/modules/home/components/import-export/import-dialog-csv.component.scss
@@ -26,5 +26,30 @@
     .tb-import-progress{
       margin: 7px 0;
     }
+
+    .tb-failure-details {
+      width: 100%;
+      min-width: 300px;
+      height: 100%;
+      min-height: 50px;
+      margin-top: 8px;
+    }
+
+    .mat-expansion-panel {
+      box-shadow: none;
+      &.advanced-logs {
+        border: 1px groove rgba(0, 0, 0, .25);
+        padding: 0;
+        margin-bottom: 1.6em;
+
+        .mat-expansion-panel-header {
+          padding: 0 8px;
+        }
+
+        .mat-expansion-panel-body {
+          padding: 0;
+        }
+      }
+    }
   }
 }
diff --git a/ui-ngx/src/app/modules/home/components/import-export/import-dialog-csv.component.ts b/ui-ngx/src/app/modules/home/components/import-export/import-dialog-csv.component.ts
index f878d67dee..fa9b09258a 100644
--- a/ui-ngx/src/app/modules/home/components/import-export/import-dialog-csv.component.ts
+++ b/ui-ngx/src/app/modules/home/components/import-export/import-dialog-csv.component.ts
@@ -14,7 +14,7 @@
 /// limitations under the License.
 ///
 
-import { Component, Inject, OnInit, ViewChild } from '@angular/core';
+import { AfterViewInit, Component, ElementRef, Inject, Renderer2, ViewChild } from '@angular/core';
 import { MAT_DIALOG_DATA, MatDialogRef } from '@angular/material/dialog';
 import { Store } from '@ngrx/store';
 import { AppState } from '@core/core.state';
@@ -34,6 +34,12 @@ import {
 } from '@home/components/import-export/import-export.models';
 import { EdgeImportEntityData, ImportEntitiesResultInfo, ImportEntityData } from '@app/shared/models/entity.models';
 import { ImportExportService } from '@home/components/import-export/import-export.service';
+import { TableColumnsAssignmentComponent } from '@home/components/import-export/table-columns-assignment.component';
+import { getDeviceCredentialMQTTDefault } from '@shared/models/device.models';
+import { isDefinedAndNotNull } from '@core/utils';
+import { getLwm2mSecurityConfigModelsDefault } from '@shared/models/lwm2m-security-config.models';
+import { Ace } from 'ace-builds';
+import { getAce } from '@shared/models/ace/ace.models';
 
 export interface ImportDialogCsvData {
   entityType: EntityType;
@@ -48,15 +54,21 @@ export interface ImportDialogCsvData {
   styleUrls: ['./import-dialog-csv.component.scss']
 })
 export class ImportDialogCsvComponent extends DialogComponent<ImportDialogCsvComponent, boolean>
-  implements OnInit {
+  implements AfterViewInit {
 
   @ViewChild('importStepper', {static: true}) importStepper: MatVerticalStepper;
 
+  @ViewChild('columnsAssignmentComponent', {static: true})
+  columnsAssignmentComponent: TableColumnsAssignmentComponent;
+
+  @ViewChild('failureDetailsEditor')
+  failureDetailsEditorElmRef: ElementRef;
+
   entityType: EntityType;
   importTitle: string;
   importFileLabel: string;
 
-  delimiters: {key: string, value: string}[] = [{
+  delimiters: { key: string, value: string }[] = [{
     key: ',',
     value: ','
   }, {
@@ -80,6 +92,8 @@ export class ImportDialogCsvComponent extends DialogComponent<ImportDialogCsvCom
   progressCreate = 0;
   statistical: ImportEntitiesResultInfo;
 
+  private allowAssignColumn: ImportEntityColumnType[];
+  private initEditorComponent = false;
   private parseData: CsvToJsonResult;
 
   constructor(protected store: Store<AppState>,
@@ -88,7 +102,8 @@ export class ImportDialogCsvComponent extends DialogComponent<ImportDialogCsvCom
               public dialogRef: MatDialogRef<ImportDialogCsvComponent, boolean>,
               public translate: TranslateService,
               private importExport: ImportExportService,
-              private fb: FormBuilder) {
+              private fb: FormBuilder,
+              private renderer: Renderer2) {
     super(store, router, dialogRef);
     this.entityType = data.entityType;
     this.importTitle = data.importTitle;
@@ -109,7 +124,12 @@ export class ImportDialogCsvComponent extends DialogComponent<ImportDialogCsvCom
     });
   }
 
-  ngOnInit(): void {
+  ngAfterViewInit() {
+    let columns = this.columnsAssignmentComponent.columnTypes;
+    if (this.entityType === EntityType.DEVICE) {
+      columns = columns.concat(this.columnsAssignmentComponent.columnDeviceCredentials);
+    }
+    this.allowAssignColumn = columns.map(column => column.value);
   }
 
   cancel(): void {
@@ -157,8 +177,10 @@ export class ImportDialogCsvComponent extends DialogComponent<ImportDialogCsvCom
     return convertCSVToJson(importData, config,
       (messageId, params) => {
         this.store.dispatch(new ActionNotificationShow(
-          {message: this.translate.instant(messageId, params),
-            type: 'error'}));
+          {
+            message: this.translate.instant(messageId, params),
+            type: 'error'
+          }));
       }
     );
   }
@@ -168,9 +190,14 @@ export class ImportDialogCsvComponent extends DialogComponent<ImportDialogCsvCom
     const isHeader: boolean = this.importParametersFormGroup.get('isHeader').value;
     for (let i = 0; i < this.parseData.headers.length; i++) {
       let columnParam: CsvColumnParam;
-      if (isHeader && this.parseData.headers[i].search(/^(name|type|label)$/im) === 0) {
+      let findEntityColumnType: ImportEntityColumnType;
+      if (isHeader) {
+        const headerColumnName = this.parseData.headers[i].toUpperCase();
+        findEntityColumnType = this.allowAssignColumn.find(column => column === headerColumnName);
+      }
+      if (isHeader && findEntityColumnType) {
         columnParam = {
-          type: ImportEntityColumnType[this.parseData.headers[i].toLowerCase()],
+          type: findEntityColumnType,
           key: this.parseData.headers[i].toLowerCase(),
           sampleData: this.parseData.rows[0][i]
         };
@@ -189,13 +216,19 @@ export class ImportDialogCsvComponent extends DialogComponent<ImportDialogCsvCom
 
   private addEntities() {
     const importData = this.parseData;
+    const isHeader: boolean = this.importParametersFormGroup.get('isHeader').value;
     const parameterColumns: CsvColumnParam[] = this.columnTypesFormGroup.get('columnsParam').value;
     const entitiesData: ImportEntityData[] = [];
     let sentDataLength = 0;
+    const startLineNumber = isHeader ? 2 : 1;
     for (let row = 0; row < importData.rows.length; row++) {
       const entityData: ImportEntityData = this.constructDraftImportEntityData();
       const i = row;
+      entityData.lineNumber = startLineNumber + i;
       for (let j = 0; j < parameterColumns.length; j++) {
+        if (!isDefinedAndNotNull(importData.rows[i][j]) || importData.rows[i][j] === '') {
+          continue;
+        }
         switch (parameterColumns[j].type) {
           case ImportEntityColumnType.serverAttribute:
             entityData.attributes.server.push({
@@ -215,9 +248,6 @@ export class ImportDialogCsvComponent extends DialogComponent<ImportDialogCsvCom
               value: importData.rows[i][j]
             });
             break;
-          case ImportEntityColumnType.accessToken:
-            entityData.accessToken = importData.rows[i][j];
-            break;
           case ImportEntityColumnType.name:
             entityData.name = importData.rows[i][j];
             break;
@@ -233,6 +263,96 @@ export class ImportDialogCsvComponent extends DialogComponent<ImportDialogCsvCom
           case ImportEntityColumnType.description:
             entityData.description = importData.rows[i][j];
             break;
+          case ImportEntityColumnType.accessToken:
+            entityData.credential.accessToken = importData.rows[i][j];
+            break;
+          case ImportEntityColumnType.x509:
+            entityData.credential.x509 = importData.rows[i][j];
+            break;
+          case ImportEntityColumnType.mqttClientId:
+            if (!entityData.credential.mqtt) {
+              entityData.credential.mqtt = getDeviceCredentialMQTTDefault();
+            }
+            entityData.credential.mqtt.clientId = importData.rows[i][j];
+            break;
+          case ImportEntityColumnType.mqttUserName:
+            if (!entityData.credential.mqtt) {
+              entityData.credential.mqtt = getDeviceCredentialMQTTDefault();
+            }
+            entityData.credential.mqtt.userName = importData.rows[i][j];
+            break;
+          case ImportEntityColumnType.mqttPassword:
+            if (!entityData.credential.mqtt) {
+              entityData.credential.mqtt = getDeviceCredentialMQTTDefault();
+            }
+            entityData.credential.mqtt.password = importData.rows[i][j];
+            break;
+          case ImportEntityColumnType.lwm2mClientEndpoint:
+            if (!entityData.credential.lwm2m) {
+              entityData.credential.lwm2m = getLwm2mSecurityConfigModelsDefault();
+            }
+            entityData.credential.lwm2m.client.endpoint = importData.rows[i][j];
+            break;
+          case ImportEntityColumnType.lwm2mClientSecurityConfigMode:
+            if (!entityData.credential.lwm2m) {
+              entityData.credential.lwm2m = getLwm2mSecurityConfigModelsDefault();
+            }
+            entityData.credential.lwm2m.client.securityConfigClientMode = importData.rows[i][j];
+            break;
+          case ImportEntityColumnType.lwm2mClientIdentity:
+            if (!entityData.credential.lwm2m) {
+              entityData.credential.lwm2m = getLwm2mSecurityConfigModelsDefault();
+            }
+            entityData.credential.lwm2m.client.identity = importData.rows[i][j];
+            break;
+          case ImportEntityColumnType.lwm2mClientKey:
+            if (!entityData.credential.lwm2m) {
+              entityData.credential.lwm2m = getLwm2mSecurityConfigModelsDefault();
+            }
+            entityData.credential.lwm2m.client.key = importData.rows[i][j];
+            break;
+          case ImportEntityColumnType.lwm2mClientCert:
+            if (!entityData.credential.lwm2m) {
+              entityData.credential.lwm2m = getLwm2mSecurityConfigModelsDefault();
+            }
+            entityData.credential.lwm2m.client.cert = importData.rows[i][j];
+            break;
+          case ImportEntityColumnType.lwm2mBootstrapServerSecurityMode:
+            if (!entityData.credential.lwm2m) {
+              entityData.credential.lwm2m = getLwm2mSecurityConfigModelsDefault();
+            }
+            entityData.credential.lwm2m.bootstrap.bootstrapServer.securityMode = importData.rows[i][j];
+            break;
+          case ImportEntityColumnType.lwm2mBootstrapServerClientPublicKeyOrId:
+            if (!entityData.credential.lwm2m) {
+              entityData.credential.lwm2m = getLwm2mSecurityConfigModelsDefault();
+            }
+            entityData.credential.lwm2m.bootstrap.bootstrapServer.clientPublicKeyOrId = importData.rows[i][j];
+            break;
+          case ImportEntityColumnType.lwm2mBootstrapServerClientSecretKey:
+            if (!entityData.credential.lwm2m) {
+              entityData.credential.lwm2m = getLwm2mSecurityConfigModelsDefault();
+            }
+            entityData.credential.lwm2m.bootstrap.bootstrapServer.clientSecretKey = importData.rows[i][j];
+            break;
+          case ImportEntityColumnType.lwm2mServerSecurityMode:
+            if (!entityData.credential.lwm2m) {
+              entityData.credential.lwm2m = getLwm2mSecurityConfigModelsDefault();
+            }
+            entityData.credential.lwm2m.bootstrap.lwm2mServer.securityMode = importData.rows[i][j];
+            break;
+          case ImportEntityColumnType.lwm2mServerClientPublicKeyOrId:
+            if (!entityData.credential.lwm2m) {
+              entityData.credential.lwm2m = getLwm2mSecurityConfigModelsDefault();
+            }
+            entityData.credential.lwm2m.bootstrap.lwm2mServer.clientPublicKeyOrId = importData.rows[i][j];
+            break;
+          case ImportEntityColumnType.lwm2mServerClientSecretKey:
+            if (!entityData.credential.lwm2m) {
+              entityData.credential.lwm2m = getLwm2mSecurityConfigModelsDefault();
+            }
+            entityData.credential.lwm2m.bootstrap.lwm2mServer.clientSecretKey = importData.rows[i][j];
+            break;
           case ImportEntityColumnType.edgeLicenseKey:
             (entityData as EdgeImportEntityData).edgeLicenseKey = importData.rows[i][j];
             break;
@@ -268,16 +388,17 @@ export class ImportDialogCsvComponent extends DialogComponent<ImportDialogCsvCom
 
   private constructDraftImportEntityData(): ImportEntityData {
     const entityData: ImportEntityData = {
+      lineNumber: 1,
       name: '',
       type: '',
       description: '',
       gateway: null,
       label: '',
-      accessToken: '',
       attributes: {
         server: [],
         shared: []
       },
+      credential: {},
       timeseries: []
     };
     if (this.entityType === EntityType.EDGE) {
@@ -292,5 +413,49 @@ export class ImportDialogCsvComponent extends DialogComponent<ImportDialogCsvCom
     }
   }
 
+  initEditor() {
+    if (!this.initEditorComponent) {
+      this.createEditor(this.failureDetailsEditorElmRef, this.statistical.error.errors);
+    }
+  }
+
+  private createEditor(editorElementRef: ElementRef, content: string): void {
+    const editorElement = editorElementRef.nativeElement;
+    let editorOptions: Partial<Ace.EditorOptions> = {
+      mode: 'ace/mode/java',
+      theme: 'ace/theme/github',
+      showGutter: false,
+      showPrintMargin: false,
+      readOnly: true
+    };
+
+    const advancedOptions = {
+      enableSnippets: false,
+      enableBasicAutocompletion: false,
+      enableLiveAutocompletion: false
+    };
+
+    editorOptions = {...editorOptions, ...advancedOptions};
+    getAce().subscribe(
+      (ace) => {
+        const editor = ace.edit(editorElement, editorOptions);
+        editor.session.setUseWrapMode(false);
+        editor.setValue(content, -1);
+        this.updateEditorSize(editorElement, content, editor);
+      }
+    );
+  }
+
+  private updateEditorSize(editorElement: any, content: string, editor: Ace.Editor) {
+    let newHeight = 200;
+    if (content && content.length > 0) {
+      const lines = content.split('\n');
+      newHeight = 16 * lines.length + 24;
+    }
+    const minHeight = Math.min(200, newHeight);
+    this.renderer.setStyle(editorElement, 'minHeight', minHeight.toString() + 'px');
+    this.renderer.setStyle(editorElement, 'height', newHeight.toString() + 'px');
+    editor.resize();
+  }
 
 }
diff --git a/ui-ngx/src/app/modules/home/components/import-export/import-export.models.ts b/ui-ngx/src/app/modules/home/components/import-export/import-export.models.ts
index 19860edfef..bd0f1c6b81 100644
--- a/ui-ngx/src/app/modules/home/components/import-export/import-export.models.ts
+++ b/ui-ngx/src/app/modules/home/components/import-export/import-export.models.ts
@@ -14,7 +14,7 @@
 /// limitations under the License.
 ///
 
-import { Widget, WidgetType, WidgetTypeDetails } from '@app/shared/models/widget.models';
+import { Widget, WidgetTypeDetails } from '@app/shared/models/widget.models';
 import { DashboardLayoutId } from '@shared/models/dashboard.models';
 import { WidgetsBundle } from '@shared/models/widgets-bundle.model';
 
@@ -46,8 +46,22 @@ export enum ImportEntityColumnType {
   sharedAttribute = 'SHARED_ATTRIBUTE',
   serverAttribute = 'SERVER_ATTRIBUTE',
   timeseries = 'TIMESERIES',
-  entityField = 'ENTITY_FIELD',
   accessToken = 'ACCESS_TOKEN',
+  x509 = 'X509',
+  mqttClientId = 'MQTT_CLIENT_ID',
+  mqttUserName = 'MQTT_USER_NAME',
+  mqttPassword = 'MQTT_PASSWORD',
+  lwm2mClientEndpoint = 'LWM2M_CLIENT_ENDPOINT',
+  lwm2mClientSecurityConfigMode = 'LWM2M_CLIENT_SECURITY_CONFIG_MODE',
+  lwm2mClientIdentity = 'LWM2M_CLIENT_IDENTITY',
+  lwm2mClientKey = 'LWM2M_CLIENT_KEY',
+  lwm2mClientCert = 'LWM2M_CLIENT_CERT',
+  lwm2mBootstrapServerSecurityMode = 'LWM2M_BOOTSTRAP_SERVER_SECURITY_MODE',
+  lwm2mBootstrapServerClientPublicKeyOrId = 'LWM2M_BOOTSTRAP_SERVER_PUBLIC_KEY_OR_ID',
+  lwm2mBootstrapServerClientSecretKey = 'LWM2M_BOOTSTRAP_SERVER_SECRET_KEY',
+  lwm2mServerSecurityMode = 'LWM2M_SERVER_SECURITY_MODE',
+  lwm2mServerClientPublicKeyOrId = 'LWM2M_SERVER_CLIENT_PUBLIC_KEY_OR_ID',
+  lwm2mServerClientSecretKey = 'LWM2M_SERVER_CLIENT_SECRET_KEY',
   isGateway = 'IS_GATEWAY',
   description = 'DESCRIPTION',
   edgeLicenseKey = 'EDGE_LICENSE_KEY',
@@ -68,8 +82,22 @@ export const importEntityColumnTypeTranslations = new Map<ImportEntityColumnType
     [ImportEntityColumnType.sharedAttribute, 'import.column-type.shared-attribute'],
     [ImportEntityColumnType.serverAttribute, 'import.column-type.server-attribute'],
     [ImportEntityColumnType.timeseries, 'import.column-type.timeseries'],
-    [ImportEntityColumnType.entityField, 'import.column-type.entity-field'],
     [ImportEntityColumnType.accessToken, 'import.column-type.access-token'],
+    [ImportEntityColumnType.x509, 'import.column-type.x509'],
+    [ImportEntityColumnType.mqttClientId, 'import.column-type.mqtt.client-id'],
+    [ImportEntityColumnType.mqttUserName, 'import.column-type.mqtt.user-name'],
+    [ImportEntityColumnType.mqttPassword, 'import.column-type.mqtt.password'],
+    [ImportEntityColumnType.lwm2mClientEndpoint, 'import.column-type.lwm2m.client-endpoint'],
+    [ImportEntityColumnType.lwm2mClientSecurityConfigMode, 'import.column-type.lwm2m.security-config-mode'],
+    [ImportEntityColumnType.lwm2mClientIdentity, 'import.column-type.lwm2m.client-identity'],
+    [ImportEntityColumnType.lwm2mClientKey, 'import.column-type.lwm2m.client-key'],
+    [ImportEntityColumnType.lwm2mClientCert, 'import.column-type.lwm2m.client-cert'],
+    [ImportEntityColumnType.lwm2mBootstrapServerSecurityMode, 'import.column-type.lwm2m.bootstrap-server-security-mode'],
+    [ImportEntityColumnType.lwm2mBootstrapServerClientPublicKeyOrId, 'import.column-type.lwm2m.bootstrap-server-public-key-id'],
+    [ImportEntityColumnType.lwm2mBootstrapServerClientSecretKey, 'import.column-type.lwm2m.bootstrap-server-secret-key'],
+    [ImportEntityColumnType.lwm2mServerSecurityMode, 'import.column-type.lwm2m.lwm2m-server-security-mode'],
+    [ImportEntityColumnType.lwm2mServerClientPublicKeyOrId, 'import.column-type.lwm2m.lwm2m-server-public-key-id'],
+    [ImportEntityColumnType.lwm2mServerClientSecretKey, 'import.column-type.lwm2m.lwm2m-server-secret-key'],
     [ImportEntityColumnType.isGateway, 'import.column-type.isgateway'],
     [ImportEntityColumnType.description, 'import.column-type.description'],
     [ImportEntityColumnType.edgeLicenseKey, 'import.column-type.edge-license-key'],
diff --git a/ui-ngx/src/app/modules/home/components/import-export/import-export.service.ts b/ui-ngx/src/app/modules/home/components/import-export/import-export.service.ts
index 3bd63b046b..3bff936da1 100644
--- a/ui-ngx/src/app/modules/home/components/import-export/import-export.service.ts
+++ b/ui-ngx/src/app/modules/home/components/import-export/import-export.service.ts
@@ -21,7 +21,7 @@ import { Store } from '@ngrx/store';
 import { AppState } from '@core/core.state';
 import { ActionNotificationShow } from '@core/notification/notification.actions';
 import { Dashboard, DashboardLayoutId } from '@shared/models/dashboard.models';
-import { deepClone, isDefined, isObject, isUndefined } from '@core/utils';
+import { deepClone, isDefined, isObject, isString, isUndefined } from '@core/utils';
 import { WINDOW } from '@core/services/window.service';
 import { DOCUMENT } from '@angular/common';
 import {
@@ -563,6 +563,8 @@ export class ImportExportService {
       if (isObject(obj2[key])) {
         obj1[key] = obj1[key] || {};
         obj1[key] = {...obj1[key], ...this.sumObject(obj1[key], obj2[key])};
+      } else if (isString(obj2[key])) {
+        obj1[key] = (obj1[key] || '') + `${obj2[key]}\n`;
       } else {
         obj1[key] = (obj1[key] || 0) + obj2[key];
       }
diff --git a/ui-ngx/src/app/modules/home/components/import-export/table-columns-assignment.component.html b/ui-ngx/src/app/modules/home/components/import-export/table-columns-assignment.component.html
index 1cb1d881b5..41a4933355 100644
--- a/ui-ngx/src/app/modules/home/components/import-export/table-columns-assignment.component.html
+++ b/ui-ngx/src/app/modules/home/components/import-export/table-columns-assignment.component.html
@@ -31,10 +31,15 @@
   <ng-container matColumnDef="type">
     <mat-header-cell *matHeaderCellDef style="flex: 0 0 40%" class="mat-column-type"> {{ 'import.column-type.column-type' | translate }} </mat-header-cell>
     <mat-cell *matCellDef="let column">
-      <mat-select matInput [(ngModel)]="column.type" (ngModelChange)="columnsUpdated()">
+      <mat-select [(ngModel)]="column.type" (ngModelChange)="columnsUpdated()">
         <mat-option *ngFor="let type of columnTypes" [value]="type.value" [disabled]="type.disabled">
           {{ columnTypesTranslations.get(type.value) | translate }}
         </mat-option>
+        <mat-optgroup label="{{ 'import.credentials' | translate }}" *ngIf="entityType === entityTypeDevice">
+          <mat-option *ngFor="let credential of columnDeviceCredentials" [value]="credential.value" [disabled]="credential.disabled">
+            {{ columnTypesTranslations.get(credential.value) | translate }}
+          </mat-option>
+        </mat-optgroup>
       </mat-select>
     </mat-cell>
   </ng-container>
diff --git a/ui-ngx/src/app/modules/home/components/import-export/table-columns-assignment.component.ts b/ui-ngx/src/app/modules/home/components/import-export/table-columns-assignment.component.ts
index 6f0bd04fcc..246094641e 100644
--- a/ui-ngx/src/app/modules/home/components/import-export/table-columns-assignment.component.ts
+++ b/ui-ngx/src/app/modules/home/components/import-export/table-columns-assignment.component.ts
@@ -57,8 +57,12 @@ export class TableColumnsAssignmentComponent implements OnInit, ControlValueAcce
 
   columnTypes: AssignmentColumnType[] = [];
 
+  columnDeviceCredentials: AssignmentColumnType[] = [];
+
   columnTypesTranslations = importEntityColumnTypeTranslations;
 
+  readonly entityTypeDevice = EntityType.DEVICE;
+
   private columns: CsvColumnParam[];
 
   private valid = true;
@@ -83,9 +87,26 @@ export class TableColumnsAssignmentComponent implements OnInit, ControlValueAcce
           { value: ImportEntityColumnType.sharedAttribute },
           { value: ImportEntityColumnType.serverAttribute },
           { value: ImportEntityColumnType.timeseries },
-          { value: ImportEntityColumnType.accessToken },
           { value: ImportEntityColumnType.isGateway }
         );
+        this.columnDeviceCredentials.push(
+          { value: ImportEntityColumnType.accessToken },
+          { value: ImportEntityColumnType.x509 },
+          { value: ImportEntityColumnType.mqttClientId },
+          { value: ImportEntityColumnType.mqttUserName },
+          { value: ImportEntityColumnType.mqttPassword },
+          { value: ImportEntityColumnType.lwm2mClientEndpoint },
+          { value: ImportEntityColumnType.lwm2mClientSecurityConfigMode },
+          { value: ImportEntityColumnType.lwm2mClientIdentity },
+          { value: ImportEntityColumnType.lwm2mClientKey },
+          { value: ImportEntityColumnType.lwm2mClientCert },
+          { value: ImportEntityColumnType.lwm2mBootstrapServerSecurityMode },
+          { value: ImportEntityColumnType.lwm2mBootstrapServerClientPublicKeyOrId },
+          { value: ImportEntityColumnType.lwm2mBootstrapServerClientSecretKey },
+          { value: ImportEntityColumnType.lwm2mServerSecurityMode },
+          { value: ImportEntityColumnType.lwm2mServerClientPublicKeyOrId },
+          { value: ImportEntityColumnType.lwm2mServerClientSecretKey },
+        );
         break;
       case EntityType.ASSET:
         this.columnTypes.push(
@@ -123,8 +144,6 @@ export class TableColumnsAssignmentComponent implements OnInit, ControlValueAcce
     const isSelectName = this.columns.findIndex((column) => column.type === ImportEntityColumnType.name) > -1;
     const isSelectType = this.columns.findIndex((column) => column.type === ImportEntityColumnType.type) > -1;
     const isSelectLabel = this.columns.findIndex((column) => column.type === ImportEntityColumnType.label) > -1;
-    const isSelectCredentials = this.columns.findIndex((column) => column.type === ImportEntityColumnType.accessToken) > -1;
-    const isSelectGateway = this.columns.findIndex((column) => column.type === ImportEntityColumnType.isGateway) > -1;
     const isSelectDescription = this.columns.findIndex((column) => column.type === ImportEntityColumnType.description) > -1;
     const isSelectEdgeLicenseKey = this.columns.findIndex((column) => column.type === ImportEntityColumnType.edgeLicenseKey) > -1;
     const isSelectCloudEndpoint = this.columns.findIndex((column) => column.type === ImportEntityColumnType.cloudEndpoint) > -1;
@@ -139,14 +158,19 @@ export class TableColumnsAssignmentComponent implements OnInit, ControlValueAcce
     this.columnTypes.find((columnType) => columnType.value === ImportEntityColumnType.label).disabled = isSelectLabel;
     this.columnTypes.find((columnType) => columnType.value === ImportEntityColumnType.description).disabled = isSelectDescription;
 
-    const isGatewayColumnType = this.columnTypes.find((columnType) => columnType.value === ImportEntityColumnType.isGateway);
-    if (isGatewayColumnType) {
-      isGatewayColumnType.disabled = isSelectGateway;
-    }
-    const accessTokenColumnType = this.columnTypes.find((columnType) => columnType.value === ImportEntityColumnType.accessToken);
-    if (accessTokenColumnType) {
-      accessTokenColumnType.disabled = isSelectCredentials;
+    if (this.entityType === EntityType.DEVICE) {
+      const isSelectGateway = this.columns.findIndex((column) => column.type === ImportEntityColumnType.isGateway) > -1;
+
+      const isGatewayColumnType = this.columnTypes.find((columnType) => columnType.value === ImportEntityColumnType.isGateway);
+      if (isGatewayColumnType) {
+        isGatewayColumnType.disabled = isSelectGateway;
+      }
+
+      this.columnDeviceCredentials.forEach((columnCredential) => {
+        columnCredential.disabled = this.columns.findIndex(column => column.type === columnCredential.value) > -1;
+      });
     }
+
     const edgeLicenseKeyColumnType = this.columnTypes.find((columnType) => columnType.value === ImportEntityColumnType.edgeLicenseKey);
     if (edgeLicenseKeyColumnType) {
       edgeLicenseKeyColumnType.disabled = isSelectEdgeLicenseKey;
diff --git a/ui-ngx/src/app/shared/models/device.models.ts b/ui-ngx/src/app/shared/models/device.models.ts
index bbf5bde5ca..d27036d7df 100644
--- a/ui-ngx/src/app/shared/models/device.models.ts
+++ b/ui-ngx/src/app/shared/models/device.models.ts
@@ -743,6 +743,14 @@ export interface DeviceCredentialMQTTBasic {
   password: string;
 }
 
+export function getDeviceCredentialMQTTDefault(): DeviceCredentialMQTTBasic {
+  return {
+    clientId: '',
+    userName: '',
+    password: ''
+  };
+}
+
 export interface DeviceSearchQuery extends EntitySearchQuery {
   deviceTypes: Array<string>;
 }
diff --git a/ui-ngx/src/app/shared/models/entity.models.ts b/ui-ngx/src/app/shared/models/entity.models.ts
index 00b21d8961..2bb66c2c62 100644
--- a/ui-ngx/src/app/shared/models/entity.models.ts
+++ b/ui-ngx/src/app/shared/models/entity.models.ts
@@ -17,6 +17,8 @@
 import { EntityType } from '@shared/models/entity-type.models';
 import { AttributeData } from './telemetry/telemetry.models';
 import { EntityId } from '@shared/models/id/entity-id';
+import { DeviceCredentialMQTTBasic } from '@shared/models/device.models';
+import { Lwm2mSecurityConfigModels } from '@shared/models/lwm2m-security-config.models';
 
 export interface EntityInfo {
   name?: string;
@@ -32,12 +34,18 @@ export interface EntityInfoData {
 }
 
 export interface ImportEntityData {
+  lineNumber: number;
   name: string;
   type: string;
   label: string;
   gateway: boolean;
   description: string;
-  accessToken: string;
+  credential: {
+    accessToken?: string;
+    x509?: string;
+    mqtt?: DeviceCredentialMQTTBasic;
+    lwm2m?: Lwm2mSecurityConfigModels;
+  };
   attributes: {
     server: AttributeData[],
     shared: AttributeData[]
@@ -61,6 +69,7 @@ export interface ImportEntitiesResultInfo {
   };
   error?: {
     entity: number;
+    errors?: string;
   };
 }
 
diff --git a/ui-ngx/src/app/shared/models/lwm2m-security-config.models.ts b/ui-ngx/src/app/shared/models/lwm2m-security-config.models.ts
index d3dd6d3ff9..1eba707f08 100644
--- a/ui-ngx/src/app/shared/models/lwm2m-security-config.models.ts
+++ b/ui-ngx/src/app/shared/models/lwm2m-security-config.models.ts
@@ -60,6 +60,20 @@ export interface Lwm2mSecurityConfigModels {
   bootstrap: BootstrapSecurityConfig;
 }
 
+
+export function getLwm2mSecurityConfigModelsDefault(): Lwm2mSecurityConfigModels {
+  return {
+    client: {
+      securityConfigClientMode: Lwm2mSecurityType.NO_SEC,
+      endpoint: ''
+    },
+    bootstrap: {
+      bootstrapServer: getDefaultServerSecurityConfig(),
+      lwm2mServer: getDefaultServerSecurityConfig()
+    }
+  };
+}
+
 export function getDefaultClientSecurityConfig(securityConfigMode: Lwm2mSecurityType, endPoint = ''): ClientSecurityConfig {
   let security =  {
     securityConfigClientMode: securityConfigMode,
diff --git a/ui-ngx/src/assets/locale/locale.constant-en_US.json b/ui-ngx/src/assets/locale/locale.constant-en_US.json
index 04fcecb694..854d99f603 100644
--- a/ui-ngx/src/assets/locale/locale.constant-en_US.json
+++ b/ui-ngx/src/assets/locale/locale.constant-en_US.json
@@ -2184,9 +2184,11 @@
         "column-title": "Title",
         "column-example": "Example value data",
         "column-key": "Attribute/telemetry key",
+        "credentials": "Credentials",
         "csv-delimiter": "CSV delimiter",
         "csv-first-line-header": "First line contains column names",
         "csv-update-data": "Update attributes/telemetry",
+        "details": "Details",
         "import-csv-number-columns-error": "A file should contain at least two columns",
         "import-csv-invalid-format-error": "Invalid file format. Line: '{{line}}'",
         "column-type": {
@@ -2200,6 +2202,25 @@
             "timeseries": "Timeseries",
             "entity-field": "Entity field",
             "access-token": "Access token",
+            "x509": "X.509",
+            "mqtt": {
+              "client-id": "MQTT client ID",
+              "user-name": "MQTT user name",
+              "password": "MQTT password"
+            },
+            "lwm2m": {
+              "client-endpoint": "LwM2M endpoint client name",
+              "security-config-mode": "LwM2M security config mode",
+              "client-identity": "LwM2M client identity",
+              "client-key": "LwM2M client key",
+              "client-cert": "LwM2M client public key",
+              "bootstrap-server-security-mode": "LwM2M bootstrap server security mode",
+              "bootstrap-server-secret-key": "LwM2M bootstrap server secret key",
+              "bootstrap-server-public-key-id": "LwM2M bootstrap server public key or id",
+              "lwm2m-server-security-mode": "LwM2M server security mode",
+              "lwm2m-server-secret-key": "LwM2M server secret key",
+              "lwm2m-server-public-key-id": "LwM2M server public key or id"
+            },
             "isgateway": "Is Gateway",
             "activity-time-from-gateway-device": "Activity time from gateway device",
             "description": "Description",