diff --git a/app/Filament/Resources/RestoreRunResource.php b/app/Filament/Resources/RestoreRunResource.php
index bad0ae9..95ab893 100644
--- a/app/Filament/Resources/RestoreRunResource.php
+++ b/app/Filament/Resources/RestoreRunResource.php
@@ -7,6 +7,8 @@
 use App\Models\BackupSet;
 use App\Models\RestoreRun;
 use App\Models\Tenant;
+use App\Services\Graph\GraphClientInterface;
+use App\Services\Graph\GroupResolver;
 use App\Services\Intune\RestoreService;
 use BackedEnum;
 use Filament\Actions;
@@ -15,10 +17,13 @@
 use Filament\Infolists;
 use Filament\Notifications\Notification;
 use Filament\Resources\Resource;
+use Filament\Schemas\Components\Section;
 use Filament\Schemas\Components\Utilities\Get;
+use Filament\Schemas\Components\Utilities\Set;
 use Filament\Schemas\Schema;
 use Filament\Tables;
 use Filament\Tables\Table;
+use Illuminate\Support\Str;
 use UnitEnum;
 
 class RestoreRunResource extends Resource
@@ -54,6 +59,10 @@ public static function form(Schema $schema): Schema
                             });
                     })
                     ->reactive()
+                    ->afterStateUpdated(function (Set $set): void {
+                        $set('backup_item_ids', []);
+                        $set('group_mapping', []);
+                    })
                     ->required(),
                 Forms\Components\CheckboxList::make('backup_item_ids')
                     ->label('Items to restore (optional)')
@@ -86,7 +95,57 @@ public static function form(Schema $schema): Schema
                             });
                     })
                     ->columns(2)
+                    ->reactive()
+                    ->afterStateUpdated(fn (Set $set) => $set('group_mapping', []))
                     ->helperText('Preview-only types stay in dry-run; leave empty to include all items.'),
+                Section::make('Group mapping')
+                    ->description('Some source groups do not exist in the target tenant. Map them or choose Skip.')
+                    ->schema(function (Get $get): array {
+                        $backupSetId = $get('backup_set_id');
+                        $selectedItemIds = $get('backup_item_ids');
+                        $tenant = Tenant::current();
+
+                        if (! $tenant || ! $backupSetId) {
+                            return [];
+                        }
+
+                        $unresolved = static::unresolvedGroups(
+                            backupSetId: $backupSetId,
+                            selectedItemIds: is_array($selectedItemIds) ? $selectedItemIds : null,
+                            tenant: $tenant
+                        );
+
+                        return array_map(function (array $group) use ($tenant): Forms\Components\Select {
+                            $groupId = $group['id'];
+                            $label = $group['label'];
+
+                            return Forms\Components\Select::make("group_mapping.{$groupId}")
+                                ->label($label)
+                                ->options([
+                                    'SKIP' => 'Skip assignment',
+                                ])
+                                ->searchable()
+                                ->getSearchResultsUsing(fn (string $search) => static::targetGroupOptions($tenant, $search))
+                                ->getOptionLabelUsing(fn ($value) => static::resolveTargetGroupLabel($tenant, $value))
+                                ->required()
+                                ->helperText('Choose a target group or select Skip.');
+                        }, $unresolved);
+                    })
+                    ->visible(function (Get $get): bool {
+                        $backupSetId = $get('backup_set_id');
+                        $selectedItemIds = $get('backup_item_ids');
+                        $tenant = Tenant::current();
+
+                        if (! $tenant || ! $backupSetId) {
+                            return false;
+                        }
+
+                        return static::unresolvedGroups(
+                            backupSetId: $backupSetId,
+                            selectedItemIds: is_array($selectedItemIds) ? $selectedItemIds : null,
+                            tenant: $tenant
+                        ) !== [];
+                    }),
                 Forms\Components\Toggle::make('is_dry_run')
                     ->label('Preview only (dry-run)')
                     ->default(true),
@@ -233,6 +292,161 @@ public static function createRestoreRun(array $data): RestoreRun
             dryRun: (bool) ($data['is_dry_run'] ?? true),
             actorEmail: auth()->user()?->email,
             actorName: auth()->user()?->name,
+            groupMapping: $data['group_mapping'] ?? [],
         );
     }
+
+    /**
+     * @param  array<int>|null  $selectedItemIds
+     * @return array<int, array{id:string,label:string}>
+     */
+    private static function unresolvedGroups(?int $backupSetId, ?array $selectedItemIds, Tenant $tenant): array
+    {
+        if (! $backupSetId) {
+            return [];
+        }
+
+        $query = BackupItem::query()->where('backup_set_id', $backupSetId);
+
+        if ($selectedItemIds !== null) {
+            $query->whereIn('id', $selectedItemIds);
+        }
+
+        $items = $query->get(['assignments']);
+        $assignments = [];
+        $sourceNames = [];
+
+        foreach ($items as $item) {
+            if (! is_array($item->assignments) || $item->assignments === []) {
+                continue;
+            }
+
+            foreach ($item->assignments as $assignment) {
+                if (! is_array($assignment)) {
+                    continue;
+                }
+
+                $target = $assignment['target'] ?? [];
+                $odataType = $target['@odata.type'] ?? '';
+
+                if (! in_array($odataType, [
+                    '#microsoft.graph.groupAssignmentTarget',
+                    '#microsoft.graph.exclusionGroupAssignmentTarget',
+                ], true)) {
+                    continue;
+                }
+
+                $groupId = $target['groupId'] ?? null;
+
+                if (! is_string($groupId) || $groupId === '') {
+                    continue;
+                }
+
+                $assignments[] = $groupId;
+                $displayName = $target['group_display_name'] ?? null;
+
+                if (is_string($displayName) && $displayName !== '') {
+                    $sourceNames[$groupId] = $displayName;
+                }
+            }
+        }
+
+        $groupIds = array_values(array_unique($assignments));
+
+        if ($groupIds === []) {
+            return [];
+        }
+
+        $graphOptions = $tenant->graphOptions();
+        $tenantIdentifier = $graphOptions['tenant'] ?? $tenant->graphTenantId() ?? (string) $tenant->getKey();
+        $resolved = app(GroupResolver::class)->resolveGroupIds($groupIds, $tenantIdentifier, $graphOptions);
+
+        $unresolved = [];
+
+        foreach ($groupIds as $groupId) {
+            $group = $resolved[$groupId] ?? null;
+
+            if (! is_array($group) || ! ($group['orphaned'] ?? false)) {
+                continue;
+            }
+
+            $label = static::formatGroupLabel($sourceNames[$groupId] ?? null, $groupId);
+            $unresolved[] = [
+                'id' => $groupId,
+                'label' => $label,
+            ];
+        }
+
+        return $unresolved;
+    }
+
+    /**
+     * @return array<string, string>
+     */
+    private static function targetGroupOptions(Tenant $tenant, string $search): array
+    {
+        if (mb_strlen($search) < 2) {
+            return [];
+        }
+
+        try {
+            $response = app(GraphClientInterface::class)->request(
+                'GET',
+                'groups',
+                [
+                    'query' => [
+                        '$filter' => sprintf(
+                            "securityEnabled eq true and startswith(displayName,'%s')",
+                            static::escapeOdataValue($search)
+                        ),
+                        '$select' => 'id,displayName',
+                        '$top' => 20,
+                    ],
+                ] + $tenant->graphOptions()
+            );
+        } catch (\Throwable) {
+            return [];
+        }
+
+        if ($response->failed()) {
+            return [];
+        }
+
+        return collect($response->data['value'] ?? [])
+            ->filter(fn (array $group) => filled($group['id'] ?? null))
+            ->mapWithKeys(fn (array $group) => [
+                $group['id'] => static::formatGroupLabel($group['displayName'] ?? null, $group['id']),
+            ])
+            ->all();
+    }
+
+    private static function resolveTargetGroupLabel(Tenant $tenant, ?string $groupId): ?string
+    {
+        if (! $groupId) {
+            return $groupId;
+        }
+
+        if ($groupId === 'SKIP') {
+            return 'Skip assignment';
+        }
+
+        $graphOptions = $tenant->graphOptions();
+        $tenantIdentifier = $graphOptions['tenant'] ?? $tenant->graphTenantId() ?? (string) $tenant->getKey();
+        $resolved = app(GroupResolver::class)->resolveGroupIds([$groupId], $tenantIdentifier, $graphOptions);
+        $group = $resolved[$groupId] ?? null;
+
+        return static::formatGroupLabel($group['displayName'] ?? null, $groupId);
+    }
+
+    private static function formatGroupLabel(?string $displayName, string $id): string
+    {
+        $suffix = sprintf(' (%s)', Str::limit($id, 8, ''));
+
+        return trim(($displayName ?: 'Security group').$suffix);
+    }
+
+    private static function escapeOdataValue(string $value): string
+    {
+        return str_replace("'", "''", $value);
+    }
 }
diff --git a/app/Jobs/RestoreAssignmentsJob.php b/app/Jobs/RestoreAssignmentsJob.php
new file mode 100644
index 0000000..5bdec75
--- /dev/null
+++ b/app/Jobs/RestoreAssignmentsJob.php
@@ -0,0 +1,84 @@
+<?php
+
+namespace App\Jobs;
+
+use App\Models\RestoreRun;
+use App\Models\Tenant;
+use App\Services\AssignmentRestoreService;
+use Illuminate\Bus\Queueable;
+use Illuminate\Contracts\Queue\ShouldQueue;
+use Illuminate\Foundation\Bus\Dispatchable;
+use Illuminate\Queue\InteractsWithQueue;
+use Illuminate\Queue\SerializesModels;
+use Illuminate\Support\Facades\Log;
+
+class RestoreAssignmentsJob implements ShouldQueue
+{
+    use Dispatchable, InteractsWithQueue, Queueable, SerializesModels;
+
+    public int $tries = 1;
+
+    public int $backoff = 0;
+
+    /**
+     * Create a new job instance.
+     */
+    public function __construct(
+        public int $restoreRunId,
+        public int $tenantId,
+        public string $policyType,
+        public string $policyId,
+        public array $assignments,
+        public array $groupMapping,
+        public ?string $actorEmail = null,
+        public ?string $actorName = null,
+    ) {}
+
+    /**
+     * Execute the job.
+     */
+    public function handle(AssignmentRestoreService $assignmentRestoreService): array
+    {
+        $restoreRun = RestoreRun::find($this->restoreRunId);
+        $tenant = Tenant::find($this->tenantId);
+
+        if (! $restoreRun || ! $tenant) {
+            Log::warning('RestoreAssignmentsJob missing context', [
+                'restore_run_id' => $this->restoreRunId,
+                'tenant_id' => $this->tenantId,
+            ]);
+
+            return [
+                'outcomes' => [],
+                'summary' => ['success' => 0, 'failed' => 0, 'skipped' => 0],
+            ];
+        }
+
+        try {
+            return $assignmentRestoreService->restore(
+                tenant: $tenant,
+                policyType: $this->policyType,
+                policyId: $this->policyId,
+                assignments: $this->assignments,
+                groupMapping: $this->groupMapping,
+                restoreRun: $restoreRun,
+                actorEmail: $this->actorEmail,
+                actorName: $this->actorName,
+            );
+        } catch (\Throwable $e) {
+            Log::error('RestoreAssignmentsJob failed', [
+                'restore_run_id' => $this->restoreRunId,
+                'policy_id' => $this->policyId,
+                'error' => $e->getMessage(),
+            ]);
+
+            return [
+                'outcomes' => [[
+                    'status' => 'failed',
+                    'reason' => $e->getMessage(),
+                ]],
+                'summary' => ['success' => 0, 'failed' => 1, 'skipped' => 0],
+            ];
+        }
+    }
+}
diff --git a/app/Models/RestoreRun.php b/app/Models/RestoreRun.php
index 90028e2..b729987 100644
--- a/app/Models/RestoreRun.php
+++ b/app/Models/RestoreRun.php
@@ -43,12 +43,16 @@ public function hasGroupMapping(): bool
 
     public function getMappedGroupId(string $sourceGroupId): ?string
     {
-        return $this->group_mapping[$sourceGroupId] ?? null;
+        $mapping = $this->group_mapping ?? [];
+
+        return $mapping[$sourceGroupId] ?? null;
     }
 
     public function isGroupSkipped(string $sourceGroupId): bool
     {
-        return $this->group_mapping[$sourceGroupId] === 'SKIP';
+        $mapping = $this->group_mapping ?? [];
+
+        return ($mapping[$sourceGroupId] ?? null) === 'SKIP';
     }
 
     public function getUnmappedGroupIds(array $sourceGroupIds): array
@@ -66,7 +70,22 @@ public function addGroupMapping(string $sourceGroupId, string $targetGroupId): v
     // Assignment restore outcome helpers
     public function getAssignmentRestoreOutcomes(): array
     {
-        return $this->results['assignment_outcomes'] ?? [];
+        $results = $this->results ?? [];
+
+        if (isset($results['assignment_outcomes']) && is_array($results['assignment_outcomes'])) {
+            return $results['assignment_outcomes'];
+        }
+
+        if (! is_array($results)) {
+            return [];
+        }
+
+        return collect($results)
+            ->pluck('assignment_outcomes')
+            ->flatten(1)
+            ->filter()
+            ->values()
+            ->all();
     }
 
     public function getSuccessfulAssignmentsCount(): int
diff --git a/app/Services/AssignmentRestoreService.php b/app/Services/AssignmentRestoreService.php
new file mode 100644
index 0000000..fcb290f
--- /dev/null
+++ b/app/Services/AssignmentRestoreService.php
@@ -0,0 +1,358 @@
+<?php
+
+namespace App\Services;
+
+use App\Models\RestoreRun;
+use App\Models\Tenant;
+use App\Services\Graph\GraphClientInterface;
+use App\Services\Graph\GraphContractRegistry;
+use App\Services\Graph\GraphLogger;
+use App\Services\Graph\GraphResponse;
+use App\Services\Intune\AuditLogger;
+use Illuminate\Support\Arr;
+use Illuminate\Support\Facades\Log;
+
+class AssignmentRestoreService
+{
+    public function __construct(
+        private readonly GraphClientInterface $graphClient,
+        private readonly GraphContractRegistry $contracts,
+        private readonly GraphLogger $graphLogger,
+        private readonly AuditLogger $auditLogger,
+    ) {}
+
+    /**
+     * @param  array<int, array<string, mixed>>  $assignments
+     * @param  array<string, string>  $groupMapping
+     * @return array{outcomes: array<int, array<string, mixed>>, summary: array{success:int,failed:int,skipped:int}}
+     */
+    public function restore(
+        Tenant $tenant,
+        string $policyType,
+        string $policyId,
+        array $assignments,
+        array $groupMapping,
+        ?RestoreRun $restoreRun = null,
+        ?string $actorEmail = null,
+        ?string $actorName = null,
+    ): array {
+        $outcomes = [];
+        $summary = [
+            'success' => 0,
+            'failed' => 0,
+            'skipped' => 0,
+        ];
+
+        if ($assignments === []) {
+            return [
+                'outcomes' => $outcomes,
+                'summary' => $summary,
+            ];
+        }
+
+        $contract = $this->contracts->get($policyType);
+        $listPath = $this->resolvePath($contract['assignments_list_path'] ?? null, $policyId);
+        $deletePathTemplate = $contract['assignments_delete_path'] ?? null;
+        $createPath = $this->resolvePath($contract['assignments_create_path'] ?? null, $policyId);
+        $createMethod = strtoupper((string) ($contract['assignments_create_method'] ?? 'POST'));
+
+        if (! $listPath || ! $createPath || ! $deletePathTemplate) {
+            $outcomes[] = $this->failureOutcome(null, 'Assignments endpoints are not configured for this policy type.');
+            $summary['failed']++;
+
+            return [
+                'outcomes' => $outcomes,
+                'summary' => $summary,
+            ];
+        }
+
+        $graphOptions = $tenant->graphOptions();
+        $tenantIdentifier = $graphOptions['tenant'] ?? $tenant->graphTenantId() ?? (string) $tenant->getKey();
+
+        $context = [
+            'tenant' => $tenantIdentifier,
+            'policy_id' => $policyId,
+            'policy_type' => $policyType,
+            'restore_run_id' => $restoreRun?->id,
+        ];
+
+        $this->graphLogger->logRequest('restore_assignments_list', $context + [
+            'method' => 'GET',
+            'endpoint' => $listPath,
+        ]);
+
+        $response = $this->graphClient->request('GET', $listPath, $graphOptions);
+
+        $this->graphLogger->logResponse('restore_assignments_list', $response, $context + [
+            'method' => 'GET',
+            'endpoint' => $listPath,
+        ]);
+
+        $existingAssignments = $response->data['value'] ?? [];
+
+        foreach ($existingAssignments as $existing) {
+            $assignmentId = $existing['id'] ?? null;
+
+            if (! is_string($assignmentId) || $assignmentId === '') {
+                continue;
+            }
+
+            $deletePath = $this->resolvePath($deletePathTemplate, $policyId, $assignmentId);
+
+            if (! $deletePath) {
+                continue;
+            }
+
+            $this->graphLogger->logRequest('restore_assignments_delete', $context + [
+                'method' => 'DELETE',
+                'endpoint' => $deletePath,
+                'assignment_id' => $assignmentId,
+            ]);
+
+            $deleteResponse = $this->graphClient->request('DELETE', $deletePath, $graphOptions);
+
+            $this->graphLogger->logResponse('restore_assignments_delete', $deleteResponse, $context + [
+                'method' => 'DELETE',
+                'endpoint' => $deletePath,
+                'assignment_id' => $assignmentId,
+            ]);
+
+            if ($deleteResponse->failed()) {
+                Log::warning('Failed to delete existing assignment during restore', $context + [
+                    'assignment_id' => $assignmentId,
+                    'graph_error_message' => $deleteResponse->meta['error_message'] ?? null,
+                    'graph_error_code' => $deleteResponse->meta['error_code'] ?? null,
+                ]);
+            }
+        }
+
+        foreach ($assignments as $assignment) {
+            if (! is_array($assignment)) {
+                continue;
+            }
+
+            $groupId = $assignment['target']['groupId'] ?? null;
+            $mappedGroupId = $groupId && isset($groupMapping[$groupId]) ? $groupMapping[$groupId] : null;
+
+            if ($mappedGroupId === 'SKIP') {
+                $outcomes[] = $this->skipOutcome($assignment, $groupId, $mappedGroupId);
+                $summary['skipped']++;
+                $this->logAssignmentOutcome(
+                    status: 'skipped',
+                    tenant: $tenant,
+                    assignment: $assignment,
+                    restoreRun: $restoreRun,
+                    actorEmail: $actorEmail,
+                    actorName: $actorName,
+                    metadata: [
+                        'policy_id' => $policyId,
+                        'policy_type' => $policyType,
+                        'group_id' => $groupId,
+                        'mapped_group_id' => $mappedGroupId,
+                    ]
+                );
+
+                continue;
+            }
+
+            $assignmentToRestore = $this->applyGroupMapping($assignment, $mappedGroupId);
+            $assignmentToRestore = $this->sanitizeAssignment($assignmentToRestore);
+
+            $this->graphLogger->logRequest('restore_assignments_create', $context + [
+                'method' => $createMethod,
+                'endpoint' => $createPath,
+                'group_id' => $groupId,
+                'mapped_group_id' => $mappedGroupId,
+            ]);
+
+            $createResponse = $this->graphClient->request($createMethod, $createPath, [
+                'json' => $assignmentToRestore,
+            ] + $graphOptions);
+
+            $this->graphLogger->logResponse('restore_assignments_create', $createResponse, $context + [
+                'method' => $createMethod,
+                'endpoint' => $createPath,
+                'group_id' => $groupId,
+                'mapped_group_id' => $mappedGroupId,
+            ]);
+
+            if ($createResponse->successful()) {
+                $outcomes[] = $this->successOutcome($assignment, $groupId, $mappedGroupId);
+                $summary['success']++;
+                $this->logAssignmentOutcome(
+                    status: 'created',
+                    tenant: $tenant,
+                    assignment: $assignment,
+                    restoreRun: $restoreRun,
+                    actorEmail: $actorEmail,
+                    actorName: $actorName,
+                    metadata: [
+                        'policy_id' => $policyId,
+                        'policy_type' => $policyType,
+                        'group_id' => $groupId,
+                        'mapped_group_id' => $mappedGroupId,
+                    ]
+                );
+            } else {
+                $outcomes[] = $this->failureOutcome(
+                    $assignment,
+                    $createResponse->meta['error_message'] ?? 'Graph create failed',
+                    $groupId,
+                    $mappedGroupId,
+                    $createResponse
+                );
+                $summary['failed']++;
+                $this->logAssignmentOutcome(
+                    status: 'failed',
+                    tenant: $tenant,
+                    assignment: $assignment,
+                    restoreRun: $restoreRun,
+                    actorEmail: $actorEmail,
+                    actorName: $actorName,
+                    metadata: [
+                        'policy_id' => $policyId,
+                        'policy_type' => $policyType,
+                        'group_id' => $groupId,
+                        'mapped_group_id' => $mappedGroupId,
+                        'graph_error_message' => $createResponse->meta['error_message'] ?? null,
+                        'graph_error_code' => $createResponse->meta['error_code'] ?? null,
+                    ],
+                );
+            }
+
+            usleep(100000);
+        }
+
+        return [
+            'outcomes' => $outcomes,
+            'summary' => $summary,
+        ];
+    }
+
+    private function resolvePath(?string $template, string $policyId, ?string $assignmentId = null): ?string
+    {
+        if (! is_string($template) || $template === '') {
+            return null;
+        }
+
+        $path = str_replace('{id}', urlencode($policyId), $template);
+
+        if ($assignmentId !== null) {
+            $path = str_replace('{assignmentId}', urlencode($assignmentId), $path);
+        }
+
+        return $path;
+    }
+
+    private function applyGroupMapping(array $assignment, ?string $mappedGroupId): array
+    {
+        if (! $mappedGroupId) {
+            return $assignment;
+        }
+
+        $target = $assignment['target'] ?? [];
+        $odataType = $target['@odata.type'] ?? '';
+
+        if (in_array($odataType, [
+            '#microsoft.graph.groupAssignmentTarget',
+            '#microsoft.graph.exclusionGroupAssignmentTarget',
+        ], true) && isset($target['groupId'])) {
+            $target['groupId'] = $mappedGroupId;
+            $assignment['target'] = $target;
+        }
+
+        return $assignment;
+    }
+
+    private function sanitizeAssignment(array $assignment): array
+    {
+        $assignment = Arr::except($assignment, ['id']);
+        $target = $assignment['target'] ?? [];
+
+        unset(
+            $target['group_display_name'],
+            $target['group_orphaned'],
+            $target['assignment_filter_name']
+        );
+
+        $assignment['target'] = $target;
+
+        return $assignment;
+    }
+
+    private function successOutcome(array $assignment, ?string $groupId, ?string $mappedGroupId): array
+    {
+        return [
+            'status' => 'success',
+            'assignment' => $this->sanitizeAssignment($assignment),
+            'group_id' => $groupId,
+            'mapped_group_id' => $mappedGroupId,
+        ];
+    }
+
+    private function skipOutcome(array $assignment, ?string $groupId, ?string $mappedGroupId): array
+    {
+        return [
+            'status' => 'skipped',
+            'assignment' => $this->sanitizeAssignment($assignment),
+            'group_id' => $groupId,
+            'mapped_group_id' => $mappedGroupId,
+        ];
+    }
+
+    private function failureOutcome(
+        ?array $assignment,
+        string $reason,
+        ?string $groupId = null,
+        ?string $mappedGroupId = null,
+        ?GraphResponse $response = null
+    ): array {
+        return array_filter([
+            'status' => 'failed',
+            'assignment' => $assignment ? $this->sanitizeAssignment($assignment) : null,
+            'group_id' => $groupId,
+            'mapped_group_id' => $mappedGroupId,
+            'reason' => $reason,
+            'graph_error_message' => $response?->meta['error_message'] ?? null,
+            'graph_error_code' => $response?->meta['error_code'] ?? null,
+            'graph_request_id' => $response?->meta['request_id'] ?? null,
+            'graph_client_request_id' => $response?->meta['client_request_id'] ?? null,
+        ], static fn ($value) => $value !== null);
+    }
+
+    private function logAssignmentOutcome(
+        string $status,
+        Tenant $tenant,
+        array $assignment,
+        ?RestoreRun $restoreRun,
+        ?string $actorEmail,
+        ?string $actorName,
+        array $metadata
+    ): void {
+        $action = match ($status) {
+            'created' => 'restore.assignment.created',
+            'failed' => 'restore.assignment.failed',
+            default => 'restore.assignment.skipped',
+        };
+
+        $statusLabel = match ($status) {
+            'created' => 'success',
+            'failed' => 'failed',
+            default => 'warning',
+        };
+
+        $this->auditLogger->log(
+            tenant: $tenant,
+            action: $action,
+            context: [
+                'metadata' => $metadata,
+                'assignment' => $this->sanitizeAssignment($assignment),
+            ],
+            actorEmail: $actorEmail,
+            actorName: $actorName,
+            status: $statusLabel,
+            resourceType: 'restore_run',
+            resourceId: $restoreRun ? (string) $restoreRun->id : null
+        );
+    }
+}
diff --git a/app/Services/Intune/RestoreService.php b/app/Services/Intune/RestoreService.php
index 726f7ce..71a8210 100644
--- a/app/Services/Intune/RestoreService.php
+++ b/app/Services/Intune/RestoreService.php
@@ -7,6 +7,7 @@
 use App\Models\Policy;
 use App\Models\RestoreRun;
 use App\Models\Tenant;
+use App\Services\AssignmentRestoreService;
 use App\Services\Graph\GraphClientInterface;
 use App\Services\Graph\GraphContractRegistry;
 use App\Services\Graph\GraphErrorMapper;
@@ -25,6 +26,7 @@ public function __construct(
         private readonly VersionService $versionService,
         private readonly SnapshotValidator $snapshotValidator,
         private readonly GraphContractRegistry $contracts,
+        private readonly AssignmentRestoreService $assignmentRestoreService,
     ) {}
 
     /**
@@ -73,6 +75,7 @@ public function execute(
         bool $dryRun = true,
         ?string $actorEmail = null,
         ?string $actorName = null,
+        array $groupMapping = [],
     ): RestoreRun {
         $this->assertActiveContext($tenant, $backupSet);
 
@@ -90,8 +93,28 @@ public function execute(
             'preview' => $preview,
             'started_at' => CarbonImmutable::now(),
             'metadata' => [],
+            'group_mapping' => $groupMapping !== [] ? $groupMapping : null,
         ]);
 
+        if ($groupMapping !== []) {
+            $this->auditLogger->log(
+                tenant: $tenant,
+                action: 'restore.group_mapping.applied',
+                context: [
+                    'metadata' => [
+                        'restore_run_id' => $restoreRun->id,
+                        'backup_set_id' => $backupSet->id,
+                        'mapped_groups' => count($groupMapping),
+                    ],
+                ],
+                actorEmail: $actorEmail,
+                actorName: $actorName,
+                resourceType: 'restore_run',
+                resourceId: (string) $restoreRun->id,
+                status: 'success'
+            );
+        }
+
         $results = [];
         $hardFailures = 0;
 
@@ -265,6 +288,31 @@ public function execute(
                 continue;
             }
 
+            $assignmentOutcomes = null;
+            $assignmentSummary = null;
+
+            if (! $dryRun && is_array($item->assignments) && $item->assignments !== []) {
+                $assignmentPolicyId = $createdPolicyId ?? $item->policy_identifier;
+
+                $assignmentOutcomes = $this->assignmentRestoreService->restore(
+                    tenant: $tenant,
+                    policyType: $item->policy_type,
+                    policyId: $assignmentPolicyId,
+                    assignments: $item->assignments,
+                    groupMapping: $groupMapping,
+                    restoreRun: $restoreRun,
+                    actorEmail: $actorEmail,
+                    actorName: $actorName,
+                );
+
+                $assignmentSummary = $assignmentOutcomes['summary'] ?? null;
+
+                if (is_array($assignmentSummary) && ($assignmentSummary['failed'] ?? 0) > 0 && $itemStatus === 'applied') {
+                    $itemStatus = 'partial';
+                    $resultReason = 'Assignments restored with failures';
+                }
+            }
+
             $result = $context + ['status' => $itemStatus];
 
             if ($settingsApply !== null) {
@@ -285,6 +333,14 @@ public function execute(
                 $result['reason'] = 'Some settings require attention';
             }
 
+            if ($assignmentOutcomes !== null) {
+                $result['assignment_outcomes'] = $assignmentOutcomes['outcomes'] ?? [];
+            }
+
+            if ($assignmentSummary !== null) {
+                $result['assignment_summary'] = $assignmentSummary;
+            }
+
             $results[] = $result;
 
             $appliedPolicyId = $item->policy_identifier;
diff --git a/tests/Feature/RestoreAssignmentApplicationTest.php b/tests/Feature/RestoreAssignmentApplicationTest.php
new file mode 100644
index 0000000..b8d529b
--- /dev/null
+++ b/tests/Feature/RestoreAssignmentApplicationTest.php
@@ -0,0 +1,250 @@
+<?php
+
+use App\Models\BackupItem;
+use App\Models\BackupSet;
+use App\Models\Policy;
+use App\Models\Tenant;
+use App\Models\User;
+use App\Services\Graph\GraphClientInterface;
+use App\Services\Graph\GraphResponse;
+use App\Services\Intune\RestoreService;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+
+uses(RefreshDatabase::class);
+
+class RestoreAssignmentGraphClient implements GraphClientInterface
+{
+    /**
+     * @var array<int, array{method:string,path:string,payload:array|null}>
+     */
+    public array $requestCalls = [];
+
+    /**
+     * @param  array<int, GraphResponse>  $requestResponses
+     */
+    public function __construct(
+        private readonly GraphResponse $applyPolicyResponse,
+        private array $requestResponses = [],
+    ) {}
+
+    public function listPolicies(string $policyType, array $options = []): GraphResponse
+    {
+        return new GraphResponse(true, []);
+    }
+
+    public function getPolicy(string $policyType, string $policyId, array $options = []): GraphResponse
+    {
+        return new GraphResponse(true, ['payload' => []]);
+    }
+
+    public function getOrganization(array $options = []): GraphResponse
+    {
+        return new GraphResponse(true, []);
+    }
+
+    public function applyPolicy(string $policyType, string $policyId, array $payload, array $options = []): GraphResponse
+    {
+        return $this->applyPolicyResponse;
+    }
+
+    public function getServicePrincipalPermissions(array $options = []): GraphResponse
+    {
+        return new GraphResponse(true, []);
+    }
+
+    public function request(string $method, string $path, array $options = []): GraphResponse
+    {
+        $this->requestCalls[] = [
+            'method' => strtoupper($method),
+            'path' => $path,
+            'payload' => $options['json'] ?? null,
+        ];
+
+        return array_shift($this->requestResponses) ?? new GraphResponse(true, []);
+    }
+}
+
+test('restore applies assignments with mapped groups', function () {
+    $applyResponse = new GraphResponse(true, []);
+    $requestResponses = [
+        new GraphResponse(true, ['value' => [['id' => 'assign-old-1']]]), // list
+        new GraphResponse(true, [], 204), // delete
+        new GraphResponse(true, ['id' => 'assign-new-1'], 201), // create 1
+        new GraphResponse(true, ['id' => 'assign-new-2'], 201), // create 2
+    ];
+
+    $client = new RestoreAssignmentGraphClient($applyResponse, $requestResponses);
+    app()->instance(GraphClientInterface::class, $client);
+
+    $tenant = Tenant::create([
+        'tenant_id' => 'tenant-1',
+        'name' => 'Tenant One',
+        'metadata' => [],
+    ]);
+
+    $policy = Policy::create([
+        'tenant_id' => $tenant->id,
+        'external_id' => 'scp-1',
+        'policy_type' => 'settingsCatalogPolicy',
+        'display_name' => 'Settings Catalog Alpha',
+        'platform' => 'windows',
+    ]);
+
+    $backupSet = BackupSet::create([
+        'tenant_id' => $tenant->id,
+        'name' => 'Backup',
+        'status' => 'completed',
+        'item_count' => 1,
+    ]);
+
+    $backupItem = BackupItem::create([
+        'tenant_id' => $tenant->id,
+        'backup_set_id' => $backupSet->id,
+        'policy_id' => $policy->id,
+        'policy_identifier' => $policy->external_id,
+        'policy_type' => $policy->policy_type,
+        'platform' => $policy->platform,
+        'payload' => ['id' => $policy->external_id, '@odata.type' => '#microsoft.graph.deviceManagementConfigurationPolicy'],
+        'assignments' => [
+            [
+                'id' => 'assignment-1',
+                'intent' => 'apply',
+                'target' => [
+                    '@odata.type' => '#microsoft.graph.groupAssignmentTarget',
+                    'groupId' => 'source-group-1',
+                    'group_display_name' => 'Source One',
+                ],
+            ],
+            [
+                'id' => 'assignment-2',
+                'intent' => 'apply',
+                'target' => [
+                    '@odata.type' => '#microsoft.graph.groupAssignmentTarget',
+                    'groupId' => 'source-group-2',
+                ],
+            ],
+        ],
+    ]);
+
+    $user = User::factory()->create(['email' => 'tester@example.com']);
+    $this->actingAs($user);
+
+    $service = app(RestoreService::class);
+    $run = $service->execute(
+        tenant: $tenant,
+        backupSet: $backupSet,
+        selectedItemIds: [$backupItem->id],
+        dryRun: false,
+        actorEmail: $user->email,
+        actorName: $user->name,
+        groupMapping: [
+            'source-group-1' => 'target-group-1',
+            'source-group-2' => 'target-group-2',
+        ],
+    );
+
+    $summary = $run->results[0]['assignment_summary'] ?? null;
+
+    expect($summary)->not->toBeNull();
+    expect($summary['success'])->toBe(2);
+    expect($summary['failed'])->toBe(0);
+
+    $postCalls = collect($client->requestCalls)
+        ->filter(fn (array $call) => $call['method'] === 'POST')
+        ->values();
+
+    expect($postCalls)->toHaveCount(2);
+    expect($postCalls[0]['payload']['target']['groupId'])->toBe('target-group-1');
+    expect($postCalls[0]['payload'])->not->toHaveKey('id');
+});
+
+test('restore handles assignment failures gracefully', function () {
+    $applyResponse = new GraphResponse(true, []);
+    $requestResponses = [
+        new GraphResponse(true, ['value' => [['id' => 'assign-old-1']]]), // list
+        new GraphResponse(true, [], 204), // delete
+        new GraphResponse(true, ['id' => 'assign-new-1'], 201), // create 1
+        new GraphResponse(false, ['error' => ['message' => 'Bad request']], 400, [
+            ['code' => 'BadRequest', 'message' => 'Bad request'],
+        ], [], [
+            'error_code' => 'BadRequest',
+            'error_message' => 'Bad request',
+        ]), // create 2 fails
+    ];
+
+    $client = new RestoreAssignmentGraphClient($applyResponse, $requestResponses);
+    app()->instance(GraphClientInterface::class, $client);
+
+    $tenant = Tenant::create([
+        'tenant_id' => 'tenant-1',
+        'name' => 'Tenant One',
+        'metadata' => [],
+    ]);
+
+    $policy = Policy::create([
+        'tenant_id' => $tenant->id,
+        'external_id' => 'scp-1',
+        'policy_type' => 'settingsCatalogPolicy',
+        'display_name' => 'Settings Catalog Alpha',
+        'platform' => 'windows',
+    ]);
+
+    $backupSet = BackupSet::create([
+        'tenant_id' => $tenant->id,
+        'name' => 'Backup',
+        'status' => 'completed',
+        'item_count' => 1,
+    ]);
+
+    $backupItem = BackupItem::create([
+        'tenant_id' => $tenant->id,
+        'backup_set_id' => $backupSet->id,
+        'policy_id' => $policy->id,
+        'policy_identifier' => $policy->external_id,
+        'policy_type' => $policy->policy_type,
+        'platform' => $policy->platform,
+        'payload' => ['id' => $policy->external_id, '@odata.type' => '#microsoft.graph.deviceManagementConfigurationPolicy'],
+        'assignments' => [
+            [
+                'id' => 'assignment-1',
+                'intent' => 'apply',
+                'target' => [
+                    '@odata.type' => '#microsoft.graph.groupAssignmentTarget',
+                    'groupId' => 'source-group-1',
+                ],
+            ],
+            [
+                'id' => 'assignment-2',
+                'intent' => 'apply',
+                'target' => [
+                    '@odata.type' => '#microsoft.graph.groupAssignmentTarget',
+                    'groupId' => 'source-group-2',
+                ],
+            ],
+        ],
+    ]);
+
+    $user = User::factory()->create(['email' => 'tester@example.com']);
+    $this->actingAs($user);
+
+    $service = app(RestoreService::class);
+    $run = $service->execute(
+        tenant: $tenant,
+        backupSet: $backupSet,
+        selectedItemIds: [$backupItem->id],
+        dryRun: false,
+        actorEmail: $user->email,
+        actorName: $user->name,
+        groupMapping: [
+            'source-group-1' => 'target-group-1',
+            'source-group-2' => 'target-group-2',
+        ],
+    );
+
+    $summary = $run->results[0]['assignment_summary'] ?? null;
+
+    expect($summary)->not->toBeNull();
+    expect($summary['success'])->toBe(1);
+    expect($summary['failed'])->toBe(1);
+    expect($run->results[0]['status'])->toBe('partial');
+});
diff --git a/tests/Feature/RestoreGroupMappingTest.php b/tests/Feature/RestoreGroupMappingTest.php
new file mode 100644
index 0000000..f746750
--- /dev/null
+++ b/tests/Feature/RestoreGroupMappingTest.php
@@ -0,0 +1,168 @@
+<?php
+
+use App\Filament\Resources\RestoreRunResource\Pages\CreateRestoreRun;
+use App\Models\BackupItem;
+use App\Models\BackupSet;
+use App\Models\Policy;
+use App\Models\RestoreRun;
+use App\Models\Tenant;
+use App\Models\User;
+use App\Services\Graph\GroupResolver;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Livewire\Livewire;
+use Mockery\MockInterface;
+
+uses(RefreshDatabase::class);
+
+test('restore wizard shows group mapping for unresolved groups', function () {
+    $tenant = Tenant::create([
+        'tenant_id' => 'tenant-1',
+        'name' => 'Tenant One',
+        'metadata' => [],
+    ]);
+
+    $tenant->makeCurrent();
+
+    $policy = Policy::create([
+        'tenant_id' => $tenant->id,
+        'external_id' => 'policy-1',
+        'policy_type' => 'settingsCatalogPolicy',
+        'display_name' => 'Settings Catalog',
+        'platform' => 'windows',
+    ]);
+
+    $backupSet = BackupSet::create([
+        'tenant_id' => $tenant->id,
+        'name' => 'Backup',
+        'status' => 'completed',
+        'item_count' => 1,
+    ]);
+
+    $backupItem = BackupItem::create([
+        'tenant_id' => $tenant->id,
+        'backup_set_id' => $backupSet->id,
+        'policy_id' => $policy->id,
+        'policy_identifier' => $policy->external_id,
+        'policy_type' => $policy->policy_type,
+        'platform' => $policy->platform,
+        'payload' => ['id' => $policy->external_id],
+        'assignments' => [[
+            'target' => [
+                '@odata.type' => '#microsoft.graph.groupAssignmentTarget',
+                'groupId' => 'source-group-1',
+                'group_display_name' => 'Source Group',
+            ],
+            'intent' => 'apply',
+        ]],
+    ]);
+
+    $this->mock(GroupResolver::class, function (MockInterface $mock) {
+        $mock->shouldReceive('resolveGroupIds')
+            ->andReturnUsing(function (array $groupIds): array {
+                return collect($groupIds)
+                    ->mapWithKeys(fn (string $id) => [$id => [
+                        'id' => $id,
+                        'displayName' => null,
+                        'orphaned' => true,
+                    ]])
+                    ->all();
+            });
+    });
+
+    $user = User::factory()->create();
+    $this->actingAs($user);
+
+    Livewire::test(CreateRestoreRun::class)
+        ->fillForm([
+            'backup_set_id' => $backupSet->id,
+            'backup_item_ids' => [$backupItem->id],
+        ])
+        ->assertFormFieldVisible('group_mapping.source-group-1');
+});
+
+test('restore wizard persists group mapping selections', function () {
+    $tenant = Tenant::create([
+        'tenant_id' => 'tenant-1',
+        'name' => 'Tenant One',
+        'metadata' => [],
+    ]);
+
+    $tenant->makeCurrent();
+
+    $policy = Policy::create([
+        'tenant_id' => $tenant->id,
+        'external_id' => 'policy-1',
+        'policy_type' => 'settingsCatalogPolicy',
+        'display_name' => 'Settings Catalog',
+        'platform' => 'windows',
+    ]);
+
+    $backupSet = BackupSet::create([
+        'tenant_id' => $tenant->id,
+        'name' => 'Backup',
+        'status' => 'completed',
+        'item_count' => 1,
+    ]);
+
+    $backupItem = BackupItem::create([
+        'tenant_id' => $tenant->id,
+        'backup_set_id' => $backupSet->id,
+        'policy_id' => $policy->id,
+        'policy_identifier' => $policy->external_id,
+        'policy_type' => $policy->policy_type,
+        'platform' => $policy->platform,
+        'payload' => ['id' => $policy->external_id],
+        'assignments' => [[
+            'target' => [
+                '@odata.type' => '#microsoft.graph.groupAssignmentTarget',
+                'groupId' => 'source-group-1',
+                'group_display_name' => 'Source Group',
+            ],
+            'intent' => 'apply',
+        ]],
+    ]);
+
+    $this->mock(GroupResolver::class, function (MockInterface $mock) {
+        $mock->shouldReceive('resolveGroupIds')
+            ->andReturnUsing(function (array $groupIds): array {
+                return collect($groupIds)
+                    ->mapWithKeys(function (string $id) {
+                        $resolved = $id === 'target-group-1';
+
+                        return [$id => [
+                            'id' => $id,
+                            'displayName' => $resolved ? 'Target Group' : null,
+                            'orphaned' => ! $resolved,
+                        ]];
+                    })
+                    ->all();
+            });
+    });
+
+    $user = User::factory()->create();
+    $this->actingAs($user);
+
+    Livewire::test(CreateRestoreRun::class)
+        ->fillForm([
+            'backup_set_id' => $backupSet->id,
+            'backup_item_ids' => [$backupItem->id],
+            'group_mapping' => [
+                'source-group-1' => 'target-group-1',
+            ],
+            'is_dry_run' => true,
+        ])
+        ->call('create')
+        ->assertHasNoFormErrors();
+
+    $run = RestoreRun::first();
+
+    expect($run)->not->toBeNull();
+    expect($run->group_mapping)->toBe([
+        'source-group-1' => 'target-group-1',
+    ]);
+
+    $this->assertDatabaseHas('audit_logs', [
+        'tenant_id' => $tenant->id,
+        'action' => 'restore.group_mapping.applied',
+    ]);
+});