diff --git a/ui/src/app/metadata/metadata.component.ts b/ui/src/app/metadata/metadata.component.ts
index 52ca814e2..62170d286 100644
--- a/ui/src/app/metadata/metadata.component.ts
+++ b/ui/src/app/metadata/metadata.component.ts
@@ -5,6 +5,7 @@ import { LoadResolverRequest } from './resolver/action/collection.action';
 import { LoadFilterRequest } from './filter/action/collection.action';
 import { LoadDraftRequest } from './resolver/action/draft.action';
 import * as fromRoot from '../app.reducer';
+import { LoadProviderRequest } from './provider/action/collection.action';
 
 @Component({
     selector: 'metadata-page',
@@ -20,5 +21,6 @@ export class MetadataPageComponent {
         this.store.dispatch(new LoadResolverRequest());
         this.store.dispatch(new LoadFilterRequest());
         this.store.dispatch(new LoadDraftRequest());
+        this.store.dispatch(new LoadProviderRequest());
     }
 }
diff --git a/ui/src/app/metadata/provider/container/provider-wizard-step.component.html b/ui/src/app/metadata/provider/container/provider-wizard-step.component.html
index b04035bf7..831e71fbb 100644
--- a/ui/src/app/metadata/provider/container/provider-wizard-step.component.html
+++ b/ui/src/app/metadata/provider/container/provider-wizard-step.component.html
@@ -1,5 +1,6 @@
 <sf-form
     [schema]="schema$ | async"
     [model]="model$ | async"
-    (onChange)="changeSubject.next($event)"
-    (isValid)="onStatusChange($event)"></sf-form>
\ No newline at end of file
+    [validators]="validators"
+    (onChange)="valueChangeSubject.next($event)"
+    (onErrorChange)="statusChangeSubject.next($event)"></sf-form>
\ No newline at end of file
diff --git a/ui/src/app/metadata/provider/container/provider-wizard-step.component.ts b/ui/src/app/metadata/provider/container/provider-wizard-step.component.ts
index 962445d30..ed583d251 100644
--- a/ui/src/app/metadata/provider/container/provider-wizard-step.component.ts
+++ b/ui/src/app/metadata/provider/container/provider-wizard-step.component.ts
@@ -1,6 +1,6 @@
 import { Component, OnDestroy } from '@angular/core';
 import { Observable, Subject } from 'rxjs';
-import { withLatestFrom, map } from 'rxjs/operators';
+import { withLatestFrom, map, distinctUntilChanged } from 'rxjs/operators';
 import { Store } from '@ngrx/store';
 
 import * as fromProvider from '../reducer';
@@ -21,8 +21,11 @@ import { pick } from '../../../shared/util';
 })
 
 export class ProviderWizardStepComponent implements OnDestroy {
-    changeSubject = new Subject<Partial<any>>();
-    private changeEmitted$ = this.changeSubject.asObservable();
+    valueChangeSubject = new Subject<Partial<any>>();
+    private valueChangeEmitted$ = this.valueChangeSubject.asObservable();
+
+    statusChangeSubject = new Subject<Partial<any>>();
+    private statusChangeEmitted$ = this.statusChangeSubject.asObservable();
 
     schema$: Observable<any>;
     schema: any;
@@ -32,6 +35,35 @@ export class ProviderWizardStepComponent implements OnDestroy {
     valid$: Observable<boolean>;
     model$: Observable<any>;
 
+    namesList: string[] = [];
+
+    validators = {
+        '/': (value, property, form_current) => {
+            let errors;
+            // iterate all customer
+            Object.keys(value).forEach((key) => {
+                const item = value[key];
+                const validatorKey = `/${key}`;
+                const validator = this.validators.hasOwnProperty(validatorKey) ? this.validators[validatorKey] : null;
+                const error = validator ? validator(item, { path: `/${key}` }, form_current) : null;
+                if (error) {
+                    errors = errors || [];
+                    errors.push(error);
+                }
+            });
+            return errors;
+        },
+        '/name': (value, property, form) => {
+            const err = this.namesList.indexOf(value) > -1 ? {
+                code: 'INVALID_NAME',
+                path: `#${property.path}`,
+                message: 'Name must be unique.',
+                params: [value]
+            } : null;
+            return err;
+        }
+    };
+
     constructor(
         private store: Store<fromProvider.ProviderState>
     ) {
@@ -39,6 +71,8 @@ export class ProviderWizardStepComponent implements OnDestroy {
         this.definition$ = this.store.select(fromWizard.getWizardDefinition);
         this.changes$ = this.store.select(fromProvider.getEntityChanges);
 
+        this.store.select(fromProvider.getProviderNames).subscribe(list => this.namesList = list);
+
         this.model$ = this.schema$.pipe(
             withLatestFrom(
                 this.store.select(fromWizard.getModel),
@@ -55,7 +89,7 @@ export class ProviderWizardStepComponent implements OnDestroy {
             map(({ model, definition }) => definition.translate ? definition.translate.formatter(model) : model)
         );
 
-        this.changeEmitted$.pipe(
+        this.valueChangeEmitted$.pipe(
             withLatestFrom(this.schema$, this.definition$),
             map(([changes, schema, definition]) => {
                 const type = changes.value['@type'];
@@ -78,15 +112,20 @@ export class ProviderWizardStepComponent implements OnDestroy {
             map(({ changes, definition }) => definition.translate ? definition.translate.parser(changes) : changes)
         )
         .subscribe(changes => this.store.dispatch(new UpdateProvider(changes)));
-    }
 
-    ngOnDestroy() {
-        this.changeSubject.complete();
+        this.statusChangeEmitted$.pipe(
+            distinctUntilChanged()
+        ).subscribe(errors => {
+            console.log(!(errors.value));
+            const status = { [this.currentPage]: !(errors.value) ? 'VALID' : 'INVALID' };
+            this.store.dispatch(new UpdateStatus(status));
+        });
+
+        this.store.select(fromWizard.getWizardIndex).subscribe(i => this.currentPage = i);
     }
 
-    onStatusChange(value): void {
-        const status = { [this.currentPage]: value ? 'VALID' : 'INVALID' };
-        this.store.dispatch(new UpdateStatus(status));
+    ngOnDestroy() {
+        this.valueChangeSubject.complete();
     }
 }
 
diff --git a/ui/src/app/metadata/provider/container/provider-wizard.component.ts b/ui/src/app/metadata/provider/container/provider-wizard.component.ts
index ad042590b..793f491da 100644
--- a/ui/src/app/metadata/provider/container/provider-wizard.component.ts
+++ b/ui/src/app/metadata/provider/container/provider-wizard.component.ts
@@ -35,14 +35,6 @@ export class ProviderWizardComponent implements OnDestroy {
 
     provider: MetadataProvider;
 
-    namesList: string[] = [];
-
-    validators = {
-        '/name': (value, property, form) => {
-            return this.namesList.indexOf(value) > -1 ? { 'name': { 'expectedValue': 'unique' } } : null;
-        }
-    };
-
     constructor(
         private store: Store<fromProvider.ProviderState>,
         private router: Router,
@@ -75,8 +67,6 @@ export class ProviderWizardComponent implements OnDestroy {
         );
 
         this.changes$.subscribe(c => this.provider = c);
-
-        this.store.select(fromProvider.getProviderNames).subscribe(list => this.namesList = list);
     }
 
     ngOnDestroy() {
diff --git a/ui/src/app/metadata/provider/effect/collection.effect.ts b/ui/src/app/metadata/provider/effect/collection.effect.ts
index 19e521f3c..5a471dfdd 100644
--- a/ui/src/app/metadata/provider/effect/collection.effect.ts
+++ b/ui/src/app/metadata/provider/effect/collection.effect.ts
@@ -9,7 +9,10 @@ import {
     ProviderCollectionActionTypes,
     AddProviderRequest,
     AddProviderSuccess,
-    AddProviderFail
+    AddProviderFail,
+    LoadProviderRequest,
+    LoadProviderSuccess,
+    LoadProviderError
 } from '../action/collection.action';
 import { MetadataProviderService } from '../../domain/service/provider.service';
 
@@ -17,6 +20,19 @@ import { MetadataProviderService } from '../../domain/service/provider.service';
 @Injectable()
 export class CollectionEffects {
 
+    @Effect()
+    loadFilters$ = this.actions$.pipe(
+        ofType<LoadProviderRequest>(ProviderCollectionActionTypes.LOAD_PROVIDER_REQUEST),
+        switchMap(() =>
+            this.providerService
+                .query()
+                .pipe(
+                    map(providers => new LoadProviderSuccess(providers)),
+                    catchError(error => of(new LoadProviderError(error)))
+                )
+        )
+    );
+
     @Effect()
     createProvider$ = this.actions$.pipe(
         ofType<AddProviderRequest>(ProviderCollectionActionTypes.ADD_PROVIDER_REQUEST),
@@ -38,14 +54,12 @@ export class CollectionEffects {
         tap(provider => this.router.navigate(['metadata']))
     );
 
-    /*
     @Effect()
     addResolverSuccessReload$ = this.actions$.pipe(
-        ofType<CreateProviderSuccess>(EntityActionTypes.CREATE_PROVIDER_SUCCESS),
+        ofType<AddProviderSuccess>(ProviderCollectionActionTypes.ADD_PROVIDER_SUCCESS),
         map(action => action.payload),
         map(provider => new LoadProviderRequest())
     );
-    */
 
     constructor(
         private actions$: Actions,
diff --git a/ui/src/app/metadata/provider/provider.module.ts b/ui/src/app/metadata/provider/provider.module.ts
index 7d60e47bb..104bae13d 100644
--- a/ui/src/app/metadata/provider/provider.module.ts
+++ b/ui/src/app/metadata/provider/provider.module.ts
@@ -18,6 +18,7 @@ import { FormModule } from '../../schema-form/schema-form.module';
 import { CustomWidgetRegistry } from '../../schema-form/registry';
 import { SummaryPropertyComponent } from './component/summary-property.component';
 import { CollectionEffects } from './effect/collection.effect';
+import { SharedModule } from '../../shared/shared.module';
 
 
 @NgModule({
@@ -34,6 +35,7 @@ import { CollectionEffects } from './effect/collection.effect';
         CommonModule,
         WizardModule,
         RouterModule,
+        SharedModule,
         FormModule
     ],
     exports: []
diff --git a/ui/src/app/schema-form/widget/text/string.component.html b/ui/src/app/schema-form/widget/text/string.component.html
index b581f242e..435c2079a 100644
--- a/ui/src/app/schema-form/widget/text/string.component.html
+++ b/ui/src/app/schema-form/widget/text/string.component.html
@@ -11,6 +11,7 @@
     </label>
     <span *ngIf="schema.description" class="sr-only">{{ schema.description }}</span>
     <input [name]="name"
+        validate="true"
         [attr.readonly]="schema.readOnly?true:null"
         class="text-widget.id textline-widget form-control"
         [attr.type]="this.getInputType()"
@@ -21,4 +22,10 @@
         [attr.minLength]="schema.minLength || null"
         [attr.disabled]="(schema.widget.id=='color' && schema.readOnly)?true:null">
     <input *ngIf="(schema.widget.id === 'color' && schema.readOnly)" [attr.name]="name" type="hidden" [formControl]="control">
+    <small class="form-text text-danger" *ngIf="errorMessages && errorMessages.length && control.touched">
+        {{ errorMessages }}
+    </small>
+    <small class="form-text text-muted" *ngIf="!(control.touched && errorMessages.length) && schema.widget.help">
+        {{ schema.widget.help }}
+    </small>
 </div>
\ No newline at end of file
diff --git a/ui/src/app/schema-form/widget/text/string.component.ts b/ui/src/app/schema-form/widget/text/string.component.ts
index 26c1f5c44..cf46aa6e2 100644
--- a/ui/src/app/schema-form/widget/text/string.component.ts
+++ b/ui/src/app/schema-form/widget/text/string.component.ts
@@ -1,18 +1,9 @@
 import { Component } from '@angular/core';
-import { ControlWidget } from 'ngx-schema-form';
+import { StringWidget } from 'ngx-schema-form';
 
 @Component({
     selector: 'custom-string',
     templateUrl: `./string.component.html`,
     styleUrls: ['../widget.component.scss']
 })
-export class CustomStringComponent extends ControlWidget {
-
-    getInputType() {
-        if (!this.schema.widget.id || this.schema.widget.id === 'string') {
-            return 'text';
-        } else {
-            return this.schema.widget.id;
-        }
-    }
-}
+export class CustomStringComponent extends StringWidget {}
diff --git a/ui/src/app/shared/shared.module.ts b/ui/src/app/shared/shared.module.ts
index 4af6af8ce..f166ad254 100644
--- a/ui/src/app/shared/shared.module.ts
+++ b/ui/src/app/shared/shared.module.ts
@@ -35,6 +35,7 @@ import { PrettyXml } from './pipe/pretty-xml.pipe';
         InputDefaultsDirective,
         I18nTextComponent,
         ValidFormIconComponent,
+        ValidationClassDirective,
         InfoLabelDirective
     ]
 })
diff --git a/ui/src/assets/schema/provider/metadata-provider.schema.json b/ui/src/assets/schema/provider/metadata-provider.schema.json
index af33d3e45..f5a840f35 100644
--- a/ui/src/assets/schema/provider/metadata-provider.schema.json
+++ b/ui/src/assets/schema/provider/metadata-provider.schema.json
@@ -1,5 +1,5 @@
 {
-    "title": "@MetadataResolver",
+    "title": "MetadataResolver",
     "type": "object",
     "widget": {
         "id": "fieldset"
@@ -8,7 +8,11 @@
         "name": {
             "title": "Metadata Provider Name (Dashboard Display Only)",
             "description": "Metadata Provider Name (Dashboard Display Only)",
-            "type": "string"
+            "type": "string",
+            "widget": {
+                "id": "string",
+                "help": "Must be unique."
+            }
         },
         "@type": {
             "title": "Metadata Provider Type",