diff --git a/app/Domains/Core/Tenant/Controllers/AdminApp/BrandController.php b/app/Domains/Core/Tenant/Controllers/AdminApp/BrandController.php
index c961bead..31b7040b 100644
--- a/app/Domains/Core/Tenant/Controllers/AdminApp/BrandController.php
+++ b/app/Domains/Core/Tenant/Controllers/AdminApp/BrandController.php
@@ -2,17 +2,30 @@
 
 namespace App\Domains\Core\Tenant\Controllers\AdminApp;
 
+use App\Domains\Core\Tenant\Requests\AdminApp\UpdateBrandRequest;
 use App\Domains\Core\Tenant\Resources\AdminApp\BrandResource;
+use App\Domains\Core\Tenant\Services\BrandService;
 use App\Domains\Core\Tenant\Services\TenantInformationService;
 use App\Http\Controllers\Controller;
 use Illuminate\Http\Request;
 
 class BrandController extends Controller
 {
-    public function __invoke(Request $request, TenantInformationService $tenantInformationService): BrandResource
+    public function show(Request $request, TenantInformationService $tenantInformationService): BrandResource
     {
         $tenant = $request->user()->tenant()->firstOrFail();
 
         return BrandResource::make($tenantInformationService->load($tenant));
     }
+
+    public function update(
+        UpdateBrandRequest $request,
+        BrandService $brandService,
+        TenantInformationService $tenantInformationService,
+    ): BrandResource {
+        $tenant = $request->user()->tenant()->firstOrFail();
+        $brandService->update($tenant, $request->validated());
+
+        return BrandResource::make($tenantInformationService->load($tenant->fresh()));
+    }
 }
diff --git a/app/Domains/Core/Tenant/Requests/AdminApp/UpdateBrandRequest.php b/app/Domains/Core/Tenant/Requests/AdminApp/UpdateBrandRequest.php
new file mode 100644
index 00000000..4d1d9ebd
--- /dev/null
+++ b/app/Domains/Core/Tenant/Requests/AdminApp/UpdateBrandRequest.php
@@ -0,0 +1,31 @@
+<?php
+
+namespace App\Domains\Core\Tenant\Requests\AdminApp;
+
+use App\Shared\Rules\CroppedImageOrBase64Rule;
+use App\Shared\Rules\ImageOrBase64Rule;
+use Illuminate\Foundation\Http\FormRequest;
+
+class UpdateBrandRequest extends FormRequest
+{
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    /** @return array<string, mixed> */
+    public function rules(): array
+    {
+        $shopit = $this->user()->tenant()->firstOrFail()->storefront_website_type_code === 'shopit';
+
+        return [
+            'nombre' => ['required', 'string', 'max:255'],
+            'primary_color' => ['required', 'regex:/^#[0-9a-fA-F]{6}$/'],
+            'footer_bg_color' => ['required', 'regex:/^#[0-9a-fA-F]{6}$/'],
+            'header_logo' => ['present', 'nullable', new ImageOrBase64Rule],
+            'footer_logo' => ['present', 'nullable', new ImageOrBase64Rule],
+            'banner_images' => [$shopit ? 'present' : 'prohibited', 'array', 'max:10'],
+            'banner_images.*' => ['required', new CroppedImageOrBase64Rule],
+        ];
+    }
+}
diff --git a/app/Domains/Core/Tenant/Resources/AdminApp/BrandResource.php b/app/Domains/Core/Tenant/Resources/AdminApp/BrandResource.php
index 0a05fb07..9f1de64c 100644
--- a/app/Domains/Core/Tenant/Resources/AdminApp/BrandResource.php
+++ b/app/Domains/Core/Tenant/Resources/AdminApp/BrandResource.php
@@ -20,7 +20,10 @@ class BrandResource extends JsonResource
             'header_bg_color' => $this->header_bg_color,
             'footer_color' => $this->footerColor(),
             'header_logo' => $this->headerLogo?->getTemporaryUrl(1440),
+            'header_logo_key' => $this->headerLogo?->key,
             'footer_logo' => $this->footerLogo?->getTemporaryUrl(1440),
+            'footer_logo_key' => $this->footerLogo?->key,
+            'can_edit_carousel' => $this->canEditCarousel(),
             'banner_images' => $this->bannerImages(),
         ];
     }
@@ -48,7 +51,7 @@ class BrandResource extends JsonResource
     /** @return array<int, array<string, mixed>> */
     private function bannerImages(): array
     {
-        if ($this->storefront_website_type_code !== 'shopit') {
+        if (! $this->canEditCarousel()) {
             return [];
         }
 
@@ -73,6 +76,7 @@ class BrandResource extends JsonResource
                     ->firstWhere('variant', AttachmentCrop::DESKTOP);
 
                 return [
+                    'key' => $image->key,
                     'url' => ($desktopCrop?->croppedAttachment ?? $image)->getTemporaryUrl(1440),
                     'original_url' => $image->getTemporaryUrl(1440),
                     'crop' => $desktopCrop === null ? null : [
@@ -84,4 +88,17 @@ class BrandResource extends JsonResource
             ->values()
             ->all();
     }
+
+    private function canEditCarousel(): bool
+    {
+        if ($this->storefront_website_type_code !== 'shopit') {
+            return false;
+        }
+
+        $extra = $this->websiteExtras->first(
+            fn ($extra) => $extra->websiteTypeExtra->codigo === 'carousel'
+        );
+
+        return $extra === null || $extra->is_enabled;
+    }
 }
diff --git a/app/Domains/Core/Tenant/Services/BrandService.php b/app/Domains/Core/Tenant/Services/BrandService.php
new file mode 100644
index 00000000..0f940095
--- /dev/null
+++ b/app/Domains/Core/Tenant/Services/BrandService.php
@@ -0,0 +1,165 @@
+<?php
+
+namespace App\Domains\Core\Tenant\Services;
+
+use App\Domains\Core\Tenant\Models\Tenant;
+use App\Shared\Attachable\Enums\AttachmentType;
+use App\Shared\Attachable\Models\Attachment;
+use App\Shared\Attachable\Services\AttachmentService;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Storage;
+use Illuminate\Support\Str;
+use Illuminate\Validation\ValidationException;
+use Throwable;
+
+class BrandService
+{
+    public function __construct(
+        private readonly AttachmentService $attachmentService,
+        private readonly WebsiteExtraService $websiteExtraService,
+    ) {}
+
+    /** @param array<string, mixed> $data */
+    public function update(Tenant $tenant, array $data): void
+    {
+        $carousel = $tenant->storefront_website_type_code === 'shopit'
+            ? $tenant->websiteExtras()->whereHas('websiteTypeExtra',
+                fn ($query) => $query->where('codigo', 'carousel'))->first()
+            : null;
+        $allowedBannerIds = is_array($carousel?->config) ? $carousel->config : [];
+        if ($carousel !== null && ! $carousel->is_enabled && ($data['banner_images'] ?? []) !== []) {
+            throw ValidationException::withMessages(['banner_images' => 'El carrusel está deshabilitado.']);
+        }
+        $seen = [];
+
+        foreach (['header_logo' => $tenant->header_logo_id, 'footer_logo' => $tenant->footer_logo_id] as $field => $id) {
+            $this->existingImage($data[$field], $id === null ? [] : [$id], $field);
+        }
+        foreach ($data['banner_images'] ?? [] as $index => $item) {
+            $image = is_array($item) ? $item['image'] : $item;
+            $attachment = $this->existingImage($image, $allowedBannerIds, "banner_images.{$index}");
+            if ($attachment !== null) {
+                if (isset($seen[$attachment->id])) {
+                    throw ValidationException::withMessages(["banner_images.{$index}" => 'La imagen está repetida.']);
+                }
+                $seen[$attachment->id] = true;
+            }
+        }
+
+        $created = [];
+
+        try {
+            DB::transaction(function () use ($tenant, $data, $carousel, &$created): void {
+                $header = $this->logo($data['header_logo'], $tenant->header_logo_id, $tenant, $created);
+                $footer = $this->logo($data['footer_logo'], $tenant->footer_logo_id, $tenant, $created);
+
+                $tenant->update([
+                    'nombre' => trim($data['nombre']),
+                    'primary_color' => $data['primary_color'],
+                    'footer_bg_color' => $data['footer_bg_color'],
+                    'header_logo_id' => $header?->id,
+                    'footer_logo_id' => $footer?->id,
+                ]);
+
+                if ($tenant->storefront_website_type_code !== 'shopit'
+                    || ($carousel !== null && ! $carousel->is_enabled)) {
+                    return;
+                }
+
+                $definition = $this->websiteExtraService->definitionForTenant($tenant, 'carousel');
+                $ids = [];
+                $recrops = [];
+                foreach ($data['banner_images'] as $item) {
+                    $image = is_array($item) ? $item['image'] : $item;
+                    $attachment = $this->existingImage($image, $carousel?->config ?? [], 'banner_images');
+                    $crops = $this->crops($item);
+
+                    if ($attachment === null) {
+                        $attachment = $crops === null
+                            ? $this->attachmentService->store($image, "tenants/{$tenant->codigo}/extras/carousel")
+                            : $this->attachmentService->storeCroppedImageVariants(
+                                $image, "tenants/{$tenant->codigo}/extras/carousel", $crops
+                            );
+                        $created[] = $attachment;
+                    } elseif ($crops !== null) {
+                        $recrops[] = [$attachment, $crops];
+                    }
+                    $ids[] = $attachment->id;
+                }
+
+                $tenant->websiteExtras()->updateOrCreate(
+                    ['website_type_extra_id' => $definition->id],
+                    ['config' => $ids]
+                );
+
+                foreach ($recrops as [$attachment, $crops]) {
+                    $this->attachmentService->updateImageCropVariants($attachment, $crops);
+                }
+            });
+        } catch (Throwable $error) {
+            foreach ($created as $attachment) {
+                $paths = [$attachment->path];
+                foreach ($attachment->cropVariants as $crop) {
+                    if ($crop->croppedAttachment !== null) {
+                        $paths[] = $crop->croppedAttachment->path;
+                    }
+                }
+                Storage::disk('s3')->delete($paths);
+            }
+            throw $error;
+        }
+    }
+
+    /** @param array<int, int> $allowedIds */
+    private function existingImage(mixed $value, array $allowedIds, string $field): ?Attachment
+    {
+        if (! is_string($value) || ! Str::isUuid($value)) {
+            return null;
+        }
+
+        $attachment = Attachment::query()->where('key', $value)->first();
+        if ($attachment === null || $attachment->type !== AttachmentType::Image
+            || ! in_array($attachment->id, $allowedIds, true)) {
+            throw ValidationException::withMessages([$field => 'La imagen no pertenece a esta marca.']);
+        }
+
+        return $attachment;
+    }
+
+    /** @param array<int, Attachment> $created */
+    private function logo(mixed $value, ?int $currentId, Tenant $tenant, array &$created): ?Attachment
+    {
+        if ($value === null) {
+            return null;
+        }
+
+        $existing = $this->existingImage($value, $currentId === null ? [] : [$currentId], 'logo');
+        if ($existing !== null) {
+            return $existing;
+        }
+
+        $attachment = $this->attachmentService->store($value, "tenants/{$tenant->codigo}/logos");
+        $created[] = $attachment;
+
+        return $attachment;
+    }
+
+    /** @return array<string, array<string, mixed>>|null */
+    private function crops(mixed $item): ?array
+    {
+        if (! is_array($item)) {
+            return null;
+        }
+
+        if (! isset($item['crop_horizontal'], $item['crop_vertical'])) {
+            return null;
+        }
+
+        $crop = [
+            'crop_horizontal' => $item['crop_horizontal'],
+            'crop_vertical' => $item['crop_vertical'],
+        ];
+
+        return ['desktop' => $crop, 'mobile' => $crop];
+    }
+}
diff --git a/app/Domains/Core/Tenant/routes/adminapp.php b/app/Domains/Core/Tenant/routes/adminapp.php
index caf331d1..99f744da 100644
--- a/app/Domains/Core/Tenant/routes/adminapp.php
+++ b/app/Domains/Core/Tenant/routes/adminapp.php
@@ -7,7 +7,8 @@ use Illuminate\Support\Facades\Route;
 Route::prefix('v1/adminapp/tenant')
     ->middleware(['auth:sanctum', 'adminapp.tenant'])
     ->group(function (): void {
-        Route::get('brand', BrandController::class);
+        Route::get('brand', [BrandController::class, 'show']);
+        Route::put('brand', [BrandController::class, 'update']);
         Route::get('website-extras', [WebsiteExtraController::class, 'show']);
         Route::get('website-extras/{websiteExtraCode}', [WebsiteExtraController::class, 'showExtra']);
         Route::put('website-extras/{websiteExtraCode}', [WebsiteExtraController::class, 'update']);
diff --git a/tests/Feature/Tenant/AdminAppBrandControllerTest.php b/tests/Feature/Tenant/AdminAppBrandControllerTest.php
index db864ac7..0395c8f7 100644
--- a/tests/Feature/Tenant/AdminAppBrandControllerTest.php
+++ b/tests/Feature/Tenant/AdminAppBrandControllerTest.php
@@ -11,6 +11,7 @@ use App\Shared\Attachable\Models\Attachment;
 use App\Shared\Attachable\Models\AttachmentCrop;
 use Database\Seeders\AuthorizationSeeder;
 use Illuminate\Foundation\Testing\RefreshDatabase;
+use Illuminate\Http\UploadedFile;
 use Illuminate\Support\Facades\Storage;
 use Laravel\Sanctum\Sanctum;
 use Tests\TestCase;
@@ -80,8 +81,10 @@ class AdminAppBrandControllerTest extends TestCase
 
         foreach (['header_logo' => $header, 'footer_logo' => $footer] as $field => $image) {
             $this->assertStringContainsString($image->path, $response->json("data.{$field}"));
+            $response->assertJsonPath("data.{$field}_key", $image->key);
         }
         foreach ([$first, $second] as $index => $image) {
+            $response->assertJsonPath("data.banner_images.{$index}.key", $image->key);
             $this->assertStringContainsString(
                 $image->path,
                 $response->json("data.banner_images.{$index}.original_url")
@@ -94,6 +97,63 @@ class AdminAppBrandControllerTest extends TestCase
         $this->assertStringNotContainsString('other.png', $response->getContent());
     }
 
+    public function test_update_keeps_original_carousel_attachment_and_returns_its_crop(): void
+    {
+        $websiteType = $this->websiteType('shopit');
+        $carousel = $websiteType->extras()->create([
+            'codigo' => 'carousel', 'nombre' => 'Carrusel', 'is_required' => false,
+            'config_schema' => ['request_rules' => [], 'transforms' => [
+                '$.*' => ['handler' => 'attachment', 'attachment_type' => 'image'],
+            ]],
+        ]);
+        $tenant = $this->tenant('acme', $websiteType, [
+            'primary_color' => '#112233', 'footer_bg_color' => '#112233',
+        ]);
+        Sanctum::actingAs($this->admin($tenant));
+        $file = UploadedFile::fake()->image('banner.png', 400, 100);
+        $dataUrl = 'data:image/png;base64,'.base64_encode(file_get_contents($file->getRealPath()));
+
+        $response = $this->putJson('/api/v1/adminapp/tenant/brand', [
+            'nombre' => 'Acme Nueva', 'primary_color' => '#abcdef',
+            'footer_bg_color' => '#abcdef', 'header_logo' => null, 'footer_logo' => null,
+            'banner_images' => [[
+                'image' => $dataUrl,
+                'crop_horizontal' => ['start_percentage' => 10, 'end_percentage' => 90],
+                'crop_vertical' => ['start_percentage' => 0, 'end_percentage' => 100],
+            ]],
+        ])->assertOk()
+            ->assertJsonPath('data.nombre', 'Acme Nueva')
+            ->assertJsonPath('data.footer_color', 'primary')
+            ->assertJsonPath('data.banner_images.0.crop.crop_horizontal.start_percentage', 10);
+
+        $original = Attachment::query()->where('key', $response->json('data.banner_images.0.key'))->firstOrFail();
+        $this->assertSame([$original->id], $tenant->websiteExtras()
+            ->where('website_type_extra_id', $carousel->id)->firstOrFail()->config);
+        $this->assertStringContainsString($original->path, $response->json('data.banner_images.0.original_url'));
+        $this->assertNotSame($response->json('data.banner_images.0.original_url'),
+            $response->json('data.banner_images.0.url'));
+
+        $updated = $this->putJson('/api/v1/adminapp/tenant/brand', [
+            'nombre' => 'Acme Nueva', 'primary_color' => '#abcdef',
+            'footer_bg_color' => '#abcdef', 'header_logo' => null, 'footer_logo' => null,
+            'banner_images' => [[
+                'image' => $original->key,
+                'crop_horizontal' => ['start_percentage' => 20, 'end_percentage' => 80],
+                'crop_vertical' => ['start_percentage' => 0, 'end_percentage' => 100],
+            ]],
+        ])->assertOk()
+            ->assertJsonPath('data.banner_images.0.key', $original->key)
+            ->assertJsonPath('data.banner_images.0.crop.crop_horizontal.start_percentage', 20);
+        $this->assertSame([$original->id], $tenant->websiteExtras()
+            ->where('website_type_extra_id', $carousel->id)->firstOrFail()->config);
+        $this->assertNotSame($response->json('data.banner_images.0.url'),
+            $updated->json('data.banner_images.0.url'));
+
+        $this->assertSame('#abcdef', $tenant->refresh()->footer_bg_color);
+        $tenant->update(['primary_color' => '#123456']);
+        $this->assertSame('#abcdef', $tenant->refresh()->footer_bg_color);
+    }
+
     public function test_footer_color_is_mapped_to_a_supported_option(): void
     {
         $websiteType = $this->websiteType('shopit');