diff --git a/app/app/Http/Controllers/Api/SupplierWebhookController.php b/app/app/Http/Controllers/Api/SupplierWebhookController.php
index e6c8e660..4e5e0732 100644
--- a/app/app/Http/Controllers/Api/SupplierWebhookController.php
+++ b/app/app/Http/Controllers/Api/SupplierWebhookController.php
@@ -50,11 +50,19 @@ class SupplierWebhookController extends Controller
             return response()->json(['message' => 'Not found.'], 404);
         }
 
+        // Plan 2.6 fix #iii: timestamp partition guard. Партиции deals месячные
+        // (deals_2026_MM); time за пределами текущего месяца → INSERT CRASH
+        // "no partition of relation deals found for row" в RouteSupplierLeadJob.
+        // Окно ±24h защищает от wildly out-of-range значений (старый/будущий
+        // дроп от поставщика); покрывает retry-задержки + clock-drift серверов.
+        $minTime = now()->subDay()->getTimestamp();
+        $maxTime = now()->addDay()->getTimestamp();
+
         $validated = $request->validate([
             'vid' => 'required|integer|min:1',
             'project' => ['required', 'string', 'max:255', 'regex:/^B[123]_.+$/'],
             'phone' => ['required', 'string', 'regex:/^7\d{10}$/'],
-            'time' => 'required|integer|min:1',
+            'time' => ['required', 'integer', "min:{$minTime}", "max:{$maxTime}"],
             'tag' => 'nullable|string|max:255',
             'phones' => 'nullable|array',
             'phones.*' => 'string|regex:/^7\d{10}$/',
diff --git a/app/phpstan-baseline.neon b/app/phpstan-baseline.neon
index f238caf2..443856a3 100644
--- a/app/phpstan-baseline.neon
+++ b/app/phpstan-baseline.neon
@@ -597,7 +597,7 @@ parameters:
 		-
 			message: '#^Call to an undefined method Pest\\PendingCalls\\TestCall\:\:postJson\(\)\.$#'
 			identifier: method.notFound
-			count: 8
+			count: 11
 			path: tests/Feature/Http/Webhook/SupplierWebhookTest.php
 
 		-
diff --git a/app/tests/Feature/Http/Webhook/SupplierWebhookTest.php b/app/tests/Feature/Http/Webhook/SupplierWebhookTest.php
index 35532c29..ec94a041 100644
--- a/app/tests/Feature/Http/Webhook/SupplierWebhookTest.php
+++ b/app/tests/Feature/Http/Webhook/SupplierWebhookTest.php
@@ -54,7 +54,7 @@ it('inserts supplier_lead row + dispatches RouteSupplierLeadJob', function () {
         'tag' => 'Ваш инвестор',
         'phone' => '79991234567',
         'phones' => ['79991234567'],
-        'time' => 1703781939,
+        'time' => time(),
     ]);
 
     $response->assertStatus(202);
@@ -122,3 +122,38 @@ it('allows empty IP allowlist в testing env (Plan 2.6 fix #ii — fail-open д
 
     $response->assertStatus(202);
 });
+
+it('rejects timestamp older than 24h (Plan 2.6 fix #iii — partition guard)', function () {
+    $response = $this->postJson('/api/webhook/supplier/test-secret-32chars-aaaaaaaaaaaaaa', [
+        'vid' => 100001,
+        'project' => 'B1_old-time.ru',
+        'phone' => '79991234567',
+        'time' => now()->subDays(2)->getTimestamp(),
+    ]);
+
+    $response->assertStatus(422)->assertJsonValidationErrors('time');
+});
+
+it('rejects timestamp more than 24h in future (Plan 2.6 fix #iii — partition guard)', function () {
+    $response = $this->postJson('/api/webhook/supplier/test-secret-32chars-aaaaaaaaaaaaaa', [
+        'vid' => 100002,
+        'project' => 'B1_future-time.ru',
+        'phone' => '79991234567',
+        'time' => now()->addDays(2)->getTimestamp(),
+    ]);
+
+    $response->assertStatus(422)->assertJsonValidationErrors('time');
+});
+
+it('accepts timestamp within ±24h window (Plan 2.6 fix #iii — partition guard)', function () {
+    Bus::fake();
+
+    $response = $this->postJson('/api/webhook/supplier/test-secret-32chars-aaaaaaaaaaaaaa', [
+        'vid' => 100003,
+        'project' => 'B1_valid-time.ru',
+        'phone' => '79991234567',
+        'time' => now()->subHours(6)->getTimestamp(),
+    ]);
+
+    $response->assertStatus(202);
+});