diff --git a/apps/api/src/app/admin/admin.service.ts b/apps/api/src/app/admin/admin.service.ts
index d77fde346..e709722dc 100644
--- a/apps/api/src/app/admin/admin.service.ts
+++ b/apps/api/src/app/admin/admin.service.ts
@@ -622,7 +622,9 @@ export class AdminService {
         assetClass: assetClass as AssetClass,
         assetSubClass: assetSubClass as AssetSubClass,
         name: name as string,
-        url: url as string
+        countries: countries as Prisma.JsonArray,
+        url: url as string,
+        sectors: sectors as Prisma.JsonArray
       };
 
       const updatedSymbolProfile: Prisma.SymbolProfileUpdateInput = {
diff --git a/apps/client/src/app/components/admin-market-data/asset-profile-dialog/asset-profile-dialog.component.ts b/apps/client/src/app/components/admin-market-data/asset-profile-dialog/asset-profile-dialog.component.ts
index cbd8deba3..48b2eacd7 100644
--- a/apps/client/src/app/components/admin-market-data/asset-profile-dialog/asset-profile-dialog.component.ts
+++ b/apps/client/src/app/components/admin-market-data/asset-profile-dialog/asset-profile-dialog.component.ts
@@ -15,7 +15,10 @@ import {
   User
 } from '@ghostfolio/common/interfaces';
 import { DateRange } from '@ghostfolio/common/types';
-import { validateObjectForForm } from '@ghostfolio/common/utils';
+import {
+  validateObjectForForm,
+  jsonValidator
+} from '@ghostfolio/common/utils/form.util';
 import { GfCurrencySelectorComponent } from '@ghostfolio/ui/currency-selector';
 import { GfEntityLogoComponent } from '@ghostfolio/ui/entity-logo';
 import { GfHistoricalMarketDataEditorComponent } from '@ghostfolio/ui/historical-market-data-editor';
@@ -145,7 +148,7 @@ export class GfAssetProfileDialogComponent implements OnDestroy, OnInit {
     assetClass: new FormControl<AssetClass>(undefined),
     assetSubClass: new FormControl<AssetSubClass>(undefined),
     comment: '',
-    countries: '',
+    countries: ['', jsonValidator()],
     currency: '',
     historicalData: this.formBuilder.group({
       csvString: ''
@@ -154,14 +157,14 @@ export class GfAssetProfileDialogComponent implements OnDestroy, OnInit {
     name: ['', Validators.required],
     scraperConfiguration: this.formBuilder.group({
       defaultMarketPrice: null,
-      headers: JSON.stringify({}),
+      headers: [JSON.stringify({}), jsonValidator()],
       locale: '',
       mode: '',
       selector: '',
       url: ''
     }),
-    sectors: '',
-    symbolMapping: '',
+    sectors: ['', jsonValidator()],
+    symbolMapping: ['', jsonValidator()],
     url: ''
   });
 
diff --git a/apps/client/src/app/components/admin-market-data/asset-profile-dialog/asset-profile-dialog.html b/apps/client/src/app/components/admin-market-data/asset-profile-dialog/asset-profile-dialog.html
index a60e10edc..9d2a22c0d 100644
--- a/apps/client/src/app/components/admin-market-data/asset-profile-dialog/asset-profile-dialog.html
+++ b/apps/client/src/app/components/admin-market-data/asset-profile-dialog/asset-profile-dialog.html
@@ -391,29 +391,151 @@
               </mat-form-field>
             </div>
             @if (assetProfile?.dataSource === 'MANUAL') {
-              <div>
-                <mat-form-field appearance="outline" class="w-100">
-                  <mat-label i18n>Sectors</mat-label>
-                  <textarea
-                    cdkTextareaAutosize
-                    formControlName="sectors"
-                    matInput
-                    type="text"
-                  ></textarea>
-                </mat-form-field>
-              </div>
-              <div>
-                <mat-form-field appearance="outline" class="w-100">
-                  <mat-label i18n>Countries</mat-label>
-                  <textarea
-                    cdkTextareaAutosize
-                    formControlName="countries"
-                    matInput
-                    type="text"
-                  ></textarea>
-                </mat-form-field>
+              <div class="mb-3">
+                <mat-accordion class="my-3">
+                  <mat-expansion-panel
+                    class="shadow-none"
+                    [expanded]="
+                      assetProfileForm.controls.scraperConfiguration.controls
+                        .selector.value !== '' &&
+                      assetProfileForm.controls.scraperConfiguration.controls
+                        .url.value !== ''
+                    "
+                    (closed)="scraperConfiguationIsExpanded.set(false)"
+                    (opened)="scraperConfiguationIsExpanded.set(true)"
+                  >
+                    <mat-expansion-panel-header class="p-0 pr-3">
+                      <mat-panel-title class="font-weight-bold" i18n
+                        >Scraper Configuration</mat-panel-title
+                      >
+                    </mat-expansion-panel-header>
+                    <div formGroupName="scraperConfiguration">
+                      <div class="mt-3">
+                        <mat-form-field
+                          appearance="outline"
+                          class="w-100 without-hint"
+                        >
+                          <mat-label i18n>Default Market Price</mat-label>
+                          <input
+                            formControlName="defaultMarketPrice"
+                            matInput
+                            type="number"
+                          />
+                        </mat-form-field>
+                      </div>
+                      <div class="mt-3">
+                        <mat-form-field
+                          appearance="outline"
+                          class="w-100 without-hint"
+                        >
+                          <mat-label i18n>HTTP Request Headers</mat-label>
+                          <textarea
+                            cdkTextareaAutosize
+                            formControlName="headers"
+                            matInput
+                            type="text"
+                            [matAutocomplete]="auto"
+                          ></textarea>
+                        </mat-form-field>
+                      </div>
+                      <div class="mt-3">
+                        <mat-form-field
+                          appearance="outline"
+                          class="w-100 without-hint"
+                        >
+                          <mat-label i18n>Locale</mat-label>
+                          <input
+                            formControlName="locale"
+                            matInput
+                            type="text"
+                          />
+                        </mat-form-field>
+                      </div>
+                      <div class="mt-3">
+                        <mat-form-field
+                          appearance="outline"
+                          class="w-100 without-hint"
+                        >
+                          <mat-label i18n>Mode</mat-label>
+                          <mat-select formControlName="mode">
+                            @for (modeValue of modeValues; track modeValue) {
+                              <mat-option [value]="modeValue.value">{{
+                                modeValue.viewValue
+                              }}</mat-option>
+                            }
+                          </mat-select>
+                        </mat-form-field>
+                      </div>
+                      <div class="mt-3">
+                        <mat-form-field
+                          appearance="outline"
+                          class="w-100 without-hint"
+                        >
+                          <mat-label>
+                            <ng-container i18n>Selector</ng-container>*
+                          </mat-label>
+                          <textarea
+                            cdkTextareaAutosize
+                            formControlName="selector"
+                            matInput
+                            type="text"
+                          ></textarea>
+                        </mat-form-field>
+                      </div>
+                      <div class="mt-3">
+                        <mat-form-field
+                          appearance="outline"
+                          class="w-100 without-hint"
+                        >
+                          <mat-label>
+                            <ng-container i18n>Url</ng-container>*
+                          </mat-label>
+                          <input formControlName="url" matInput type="text" />
+                        </mat-form-field>
+                      </div>
+                      <div class="my-3 text-right">
+                        <button
+                          color="accent"
+                          mat-flat-button
+                          type="button"
+                          [disabled]="
+                            assetProfileForm.controls.scraperConfiguration
+                              .controls.selector.value === '' ||
+                            assetProfileForm.controls.scraperConfiguration
+                              .controls.url.value === ''
+                          "
+                          (click)="onTestMarketData()"
+                        >
+                          <ng-container i18n>Test</ng-container>
+                        </button>
+                      </div>
+                    </div>
+                  </mat-expansion-panel>
+                </mat-accordion>
               </div>
             }
+            <div>
+              <mat-form-field appearance="outline" class="w-100">
+                <mat-label i18n>Sectors</mat-label>
+                <textarea
+                  cdkTextareaAutosize
+                  formControlName="sectors"
+                  matInput
+                  type="text"
+                ></textarea>
+              </mat-form-field>
+            </div>
+            <div>
+              <mat-form-field appearance="outline" class="w-100">
+                <mat-label i18n>Countries</mat-label>
+                <textarea
+                  cdkTextareaAutosize
+                  formControlName="countries"
+                  matInput
+                  type="text"
+                ></textarea>
+              </mat-form-field>
+            </div>
             <div>
               <mat-form-field appearance="outline" class="w-100 without-hint">
                 <mat-label i18n>Url</mat-label>
diff --git a/libs/common/src/lib/utils/form.util.ts b/libs/common/src/lib/utils/form.util.ts
index b510e6215..09c9860ed 100644
--- a/libs/common/src/lib/utils/form.util.ts
+++ b/libs/common/src/lib/utils/form.util.ts
@@ -1,3 +1,4 @@
+import { AbstractControl, ValidationErrors, ValidatorFn } from '@angular/forms';
 import { FormGroup } from '@angular/forms';
 import { plainToInstance } from 'class-transformer';
 import { validate } from 'class-validator';
@@ -44,3 +45,17 @@ export async function validateObjectForForm<T>({
 
   return Promise.reject(nonIgnoredErrors);
 }
+
+export function jsonValidator(): ValidatorFn {
+  return (control: AbstractControl): ValidationErrors | null => {
+    if (!control.value) {
+      return null;
+    }
+
+    try {
+      JSON.parse(control.value);
+    } catch {
+      return { invalidJson: true };
+    }
+  };
+}