diff --git a/app/Casts/QuoteSyncCast.php b/app/Casts/QuoteSyncCast.php
new file mode 100644
index 0000000000..8f413c179f
--- /dev/null
+++ b/app/Casts/QuoteSyncCast.php
@@ -0,0 +1,52 @@
+<?php
+
+/**
+ * Invoice Ninja (https://invoiceninja.com).
+ *
+ * @link https://github.com/invoiceninja/invoiceninja source repository
+ *
+ * @copyright Copyright (c) 2025. Invoice Ninja LLC (https://invoiceninja.com)
+ *
+ * @license https://www.elastic.co/licensing/elastic-license
+ */
+
+namespace App\Casts;
+
+use App\DataMapper\QuoteSync;
+use Illuminate\Contracts\Database\Eloquent\CastsAttributes;
+
+class QuoteSyncCast implements CastsAttributes
+{
+    public function get($model, string $key, $value, array $attributes)
+    {
+
+        if (is_null($value)) {
+            return null; // Return null if the value is null
+        }
+
+        $data = json_decode($value, true);
+
+        if (!is_array($data)) {
+            return null;
+        }
+
+        $is = new QuoteSync($data);
+
+        return $is;
+    }
+
+    public function set($model, string $key, $value, array $attributes)
+    {
+
+        if (is_null($value)) {
+            return [$key => null];
+        }
+
+        return [
+            $key => json_encode([
+                'qb_id' => $value->qb_id,
+            ])
+        ];
+
+    }
+}
diff --git a/app/DataMapper/QuoteSync.php b/app/DataMapper/QuoteSync.php
new file mode 100644
index 0000000000..f1d7718951
--- /dev/null
+++ b/app/DataMapper/QuoteSync.php
@@ -0,0 +1,46 @@
+<?php
+
+/**
+ * Invoice Ninja (https://invoiceninja.com).
+ *
+ * @link https://github.com/invoiceninja/invoiceninja source repository
+ *
+ * @copyright Copyright (c) 2025. Invoice Ninja LLC (https://invoiceninja.com)
+ *
+ * @license https://www.elastic.co/licensing/elastic-license
+ */
+
+namespace App\DataMapper;
+
+use App\Casts\QuoteSyncCast;
+use Illuminate\Contracts\Database\Eloquent\Castable;
+
+/**
+ * QuoteSync.
+ */
+class QuoteSync implements Castable
+{
+    public string $qb_id;
+
+    public function __construct(array $attributes = [])
+    {
+
+        $this->qb_id = $attributes['qb_id'] ?? '';
+
+    }
+
+    /**
+     * Get the name of the caster class to use when casting from / to this cast target.
+     *
+     * @param  array<string, mixed>  $arguments
+     */
+    public static function castUsing(array $arguments): string
+    {
+        return QuoteSyncCast::class;
+    }
+
+    public static function fromArray(array $data): self
+    {
+        return new self($data);
+    }
+}
diff --git a/app/Http/Controllers/EmailController.php b/app/Http/Controllers/EmailController.php
index f17ab0c58e..1c9d7639fb 100644
--- a/app/Http/Controllers/EmailController.php
+++ b/app/Http/Controllers/EmailController.php
@@ -18,7 +18,6 @@ use App\Models\Invoice;
 use App\Models\Webhook;
 use App\Models\PurchaseOrder;
 use App\Services\Email\Email;
-use App\DataMapper\InvoiceSync;
 use App\Utils\Traits\MakesHash;
 use App\Models\RecurringInvoice;
 use App\Services\Email\EmailObject;
diff --git a/app/Models/Quote.php b/app/Models/Quote.php
index 61126f769e..6addefc795 100644
--- a/app/Models/Quote.php
+++ b/app/Models/Quote.php
@@ -13,6 +13,7 @@ namespace App\Models;
 
 use App\Utils\Ninja;
 use App\Utils\Number;
+use App\DataMapper\QuoteSync;
 use Laravel\Scout\Searchable;
 use Illuminate\Support\Carbon;
 use App\Utils\Traits\MakesHash;
@@ -55,6 +56,7 @@ use Illuminate\Database\Eloquent\SoftDeletes;
  * @property bool $is_deleted
  * @property array|null $line_items
  * @property object|null $backup
+ * @property object|null $sync
  * @property string|null $footer
  * @property string|null $public_notes
  * @property string|null $private_notes
@@ -181,6 +183,8 @@ class Quote extends BaseModel
         'is_deleted' => 'boolean',
         'is_amount_discount' => 'bool',
         'e_invoice' => 'object',
+        'sync' => QuoteSync::class,
+
     ];
 
     public const STATUS_DRAFT = 1;