diff --git a/app/Models/CheckoutAcceptance.php b/app/Models/CheckoutAcceptance.php
index e44a330ebc..2ca9c5b48b 100644
--- a/app/Models/CheckoutAcceptance.php
+++ b/app/Models/CheckoutAcceptance.php
@@ -15,6 +15,7 @@ class CheckoutAcceptance extends Model
     protected $casts = [
         'accepted_at' => 'datetime',
         'declined_at' => 'datetime',
+        'alert_on_response_id' => 'integer',
     ];
 
     /**
diff --git a/database/migrations/2025_06_05_200518_add_alert_on_response_id_to_checkout_acceptances_table.php b/database/migrations/2025_06_05_200518_add_alert_on_response_id_to_checkout_acceptances_table.php
new file mode 100644
index 0000000000..ff9ad310f5
--- /dev/null
+++ b/database/migrations/2025_06_05_200518_add_alert_on_response_id_to_checkout_acceptances_table.php
@@ -0,0 +1,27 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration {
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::table('checkout_acceptances', function (Blueprint $table) {
+            $table->unsignedBigInteger('alert_on_response_id')->nullable()->after('note');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::table('checkout_acceptances', function (Blueprint $table) {
+            $table->dropColumn('alert_on_response_id');
+        });
+    }
+};