diff --git a/app/Http/Controllers/Admin/TahesabController.php b/app/Http/Controllers/Admin/TahesabController.php
index caadd3c..d36bbd1 100644
--- a/app/Http/Controllers/Admin/TahesabController.php
+++ b/app/Http/Controllers/Admin/TahesabController.php
@@ -1004,21 +1004,22 @@ class TahesabController extends Controller
         $isColleagueLeg = ! empty($data['colleague_leg']) && $accountOverride !== '';
 
         if (! $isColleagueLeg) {
-            if ($customer && ($customer->moshtari_code === null)) {
-                $this->createCustomerInTahesab($customer->id);
-                $customer = Customer::where('id', $data['customer_id'])->first();
+            $ensured = $this->ensureCustomerHasTahesabCode($customer);
+            if (! ($ensured['ok'] ?? false)) {
+                return $ensured['message'] ?? 'مشتری کد ته‌حساب ندارد';
             }
+            $customer = $ensured['customer'];
         }
 
         if (! $customer) {
-            return false;
+            return 'مشتری سند پیدا نشد';
         }
 
         $hesabCode = $isColleagueLeg
             ? (int) $accountOverride
             : (int) ($customer->moshtari_code ?? 0);
         if ($hesabCode <= 0) {
-            return false;
+            return 'مشتری کد ته‌حساب ندارد';
         }
 
         $kind = $mapper->resolveKind($product);
@@ -1056,6 +1057,7 @@ class TahesabController extends Controller
         if ($sharh === '') {
             $sharh = trim($title !== '' ? "{$action} {$title}" : "{$action} {$kindFa}");
         }
+        $sharh = $this->sharhWithCustomer($sharh, $customer);
 
         $orderId = is_object($data['order'] ?? null)
             ? ($data['order']->id ?? null)
@@ -1138,14 +1140,17 @@ class TahesabController extends Controller
 //            throw new UnprocessableEntityHttpException("Auth needed");
 //        }
         $customer = Customer::where('id', $data['customer_id'])->first();
-
-        if ($customer && ($customer->moshtari_code === null)) {
-            $this->createCustomerInTahesab($customer->id);
-            $customer = Customer::where('id', $data['customer_id'])->first();
+        $ensured = $this->ensureCustomerHasTahesabCode($customer);
+        if (! ($ensured['ok'] ?? false)) {
+            return $ensured['message'] ?? 'مشتری کد ته‌حساب ندارد';
         }
+        $customer = $ensured['customer'];
         $data['handler'] = 'wallet';
         $isDeposit = (int) ($data['direction'] ?? 0) === 0;
-        $sharh = self::accountingWalletDesc($isDeposit, $data['note'] ?? null);
+        $sharh = $this->sharhWithCustomer(
+            self::accountingWalletDesc($isDeposit, $data['note'] ?? null),
+            $customer
+        );
         $tahesab = $existing ?? Tahesab::create([
             "customer_id" => $customer->id,
             "desc" => $sharh,
@@ -1327,17 +1332,17 @@ class TahesabController extends Controller
         }
 
         $customer = Customer::where('id', $data['customer_id'])->first();
-        if (!$customer) {
-            return false;
-        }
-
-        if ($customer->moshtari_code === null) {
-            $this->createCustomerInTahesab($customer->id);
-            $customer = Customer::where('id', $data['customer_id'])->first();
+        $ensured = $this->ensureCustomerHasTahesabCode($customer);
+        if (! ($ensured['ok'] ?? false)) {
+            return $ensured['message'] ?? 'مشتری کد ته‌حساب ندارد';
         }
+        $customer = $ensured['customer'];
 
         $amount = abs((float) $data['value']);
-        $desc = !empty($data['desc']) ? (string) $data['desc'] : 'پاداش';
+        $desc = $this->sharhWithCustomer(
+            ! empty($data['desc']) ? (string) $data['desc'] : 'پاداش',
+            $customer
+        );
 
         $data['handler'] = 'goldReward';
         $tahesab = $existing ?? Tahesab::create([
@@ -1432,11 +1437,11 @@ class TahesabController extends Controller
         }
 
         $customer = Customer::where('id', $data['customer_id'])->first();
-
-        if ($customer && ($customer->moshtari_code === null)) {
-            $this->createCustomerInTahesab($customer->id);
-            $customer = Customer::where('id', $data['customer_id'])->first();
+        $ensured = $this->ensureCustomerHasTahesabCode($customer);
+        if (! ($ensured['ok'] ?? false)) {
+            return $ensured['message'] ?? 'مشتری کد ته‌حساب ندارد';
         }
+        $customer = $ensured['customer'];
 
         $kind = $mapper->resolveKind($product);
         $rawValue = (float) $data['value'];
@@ -1447,9 +1452,12 @@ class TahesabController extends Controller
         $isDeposit = (int) ($data['direction'] ?? 1) === 1;
         $isVorood = $isDeposit ? 1 : 0;
 
-        $sharh = self::accountingWalletDesc(
-            $isDeposit,
-            !empty($data['note']) ? (string) $data['note'] : (!empty($data['desc']) ? (string) $data['desc'] : null)
+        $sharh = $this->sharhWithCustomer(
+            self::accountingWalletDesc(
+                $isDeposit,
+                ! empty($data['note']) ? (string) $data['note'] : (! empty($data['desc']) ? (string) $data['desc'] : null)
+            ),
+            $customer
         );
         $data['note'] = $sharh;
         $data['handler'] = 'walletGold';
@@ -1643,18 +1651,49 @@ class TahesabController extends Controller
         ];
     }
 
+    private function ensureCustomerHasTahesabCode(?Customer $customer): array
+    {
+        if (! $customer) {
+            return ['ok' => false, 'message' => 'مشتری سند پیدا نشد'];
+        }
+        if ((int) ($customer->moshtari_code ?? 0) > 0) {
+            return ['ok' => true, 'customer' => $customer];
+        }
+
+        $reg = $this->createCustomerInTahesab($customer->id);
+        $customer->refresh();
+        if ((int) ($customer->moshtari_code ?? 0) > 0) {
+            return ['ok' => true, 'customer' => $customer];
+        }
+
+        $message = is_string($reg) && $reg !== ''
+            ? $reg
+            : 'ثبت مشتری در ته‌حساب ناموفق بود';
+
+        return ['ok' => false, 'message' => $message];
+    }
+
+    private function sharhWithCustomer(string $sharh, Customer $customer): string
+    {
+        $name = trim((string) ($customer->name ?? ''));
+        if ($name === '' || str_contains($sharh, $name)) {
+            return $sharh;
+        }
+
+        return trim($sharh.' — '.$name);
+    }
+
     public function createCustomerInTahesab($customer_id)
     {
         $customer = Customer::findOrFail($customer_id);
         $response = null;
 
-        if ($customer->moshtari_code == null) {
-            $lock = Cache::lock('tahesab:register-customer:'.$customer->id, 30);
-
-            if (! $lock->get()) {
+        if ((int) ($customer->moshtari_code ?? 0) <= 0) {
+            $lockKey = 'tahesab:register-customer:'.$customer->id;
+            if (! Cache::add($lockKey, 1, 30)) {
                 $customer->refresh();
 
-                if ($customer->moshtari_code != null) {
+                if ((int) ($customer->moshtari_code ?? 0) > 0) {
                     return $customer->moshtari_code;
                 }
 
@@ -1664,7 +1703,7 @@ class TahesabController extends Controller
             try {
                 $customer->refresh();
 
-                if ($customer->moshtari_code != null) {
+                if ((int) ($customer->moshtari_code ?? 0) > 0) {
                     return $customer->moshtari_code;
                 }
 
@@ -1697,9 +1736,11 @@ class TahesabController extends Controller
                     return $e->getMessage();
                 }
 
-                return 'tahesab api error!!!';
+                return is_array($response)
+                    ? ($this->sync()->buildLog($response, 'ثبت مشتری در ته‌حساب ناموفق بود') ?: 'ثبت مشتری در ته‌حساب ناموفق بود')
+                    : 'ثبت مشتری در ته‌حساب ناموفق بود';
             } finally {
-                $lock->release();
+                Cache::forget($lockKey);
             }
         }
 
diff --git a/app/Services/TahesabSyncService.php b/app/Services/TahesabSyncService.php
index d77e5cf..eac1f7c 100644
--- a/app/Services/TahesabSyncService.php
+++ b/app/Services/TahesabSyncService.php
@@ -436,14 +436,10 @@ class TahesabSyncService
                 return $this->retry($row);
             }
             if ($type === 'withdraw') {
-                $ok = $this->backfillWithdraw($controller, $id);
-
-                return ['ok' => $ok, 'message' => $ok ? 'سند شارژ/برداشت ثبت شد' : 'ارسال شارژ/برداشت ناموفق بود'];
+                return $this->backfillWithdraw($controller, $id);
             }
             if ($type === 'order') {
-                $ok = $this->backfillOrder($controller, $id);
-
-                return ['ok' => $ok, 'message' => $ok ? 'سند سفارش ثبت شد' : 'ارسال سفارش ناموفق بود'];
+                return $this->backfillOrder($controller, $id);
             }
 
             return ['ok' => false, 'message' => 'نوع نامعتبر است'];
@@ -506,12 +502,12 @@ class TahesabSyncService
         foreach ($this->missingWithdrawIds(max(0, $limit - $used), $customerId) as $withdrawId) {
             $used++;
             try {
-                $ok = $this->backfillWithdraw($controller, (int) $withdrawId);
-                if ($ok) {
+                $sent = $this->backfillWithdraw($controller, (int) $withdrawId);
+                if ($sent['ok'] ?? false) {
                     $backfilledWithdraws++;
                 } else {
                     $failed++;
-                    $errors[] = 'شارژ/برداشت #'.$withdrawId.': ارسال به ته‌حساب ناموفق';
+                    $errors[] = 'شارژ/برداشت #'.$withdrawId.': '.($sent['message'] ?? 'ارسال به ته‌حساب ناموفق');
                 }
             } catch (\Throwable $e) {
                 $failed++;
@@ -523,12 +519,12 @@ class TahesabSyncService
         foreach ($this->missingOrderIds(max(0, $limit - $used), $customerId) as $orderId) {
             $used++;
             try {
-                $ok = $this->backfillOrder($controller, (int) $orderId);
-                if ($ok) {
+                $sent = $this->backfillOrder($controller, (int) $orderId);
+                if ($sent['ok'] ?? false) {
                     $backfilledOrders++;
                 } else {
                     $failed++;
-                    $errors[] = 'سفارش #'.$orderId.': ارسال به ته‌حساب ناموفق';
+                    $errors[] = 'سفارش #'.$orderId.': '.($sent['message'] ?? 'ارسال به ته‌حساب ناموفق');
                 }
             } catch (\Throwable $e) {
                 $failed++;
@@ -643,48 +639,64 @@ class TahesabSyncService
         return $query;
     }
 
-    private function backfillWithdraw(TahesabController $controller, int $withdrawId): bool
+    private function outcomeFromController($result, string $okMessage, string $failMessage): array
+    {
+        if (is_array($result)) {
+            return ['ok' => true, 'message' => $okMessage];
+        }
+        if (is_string($result) && $result !== '') {
+            return ['ok' => false, 'message' => $result];
+        }
+
+        return ['ok' => false, 'message' => $failMessage];
+    }
+
+    private function backfillWithdraw(TahesabController $controller, int $withdrawId): array
     {
         $withdraw = \App\Models\Withdraw::query()->find($withdrawId);
         if (! $withdraw || ! $withdraw->customer_id) {
-            return false;
+            return ['ok' => false, 'message' => 'شارژ بدون مشتری است'];
         }
 
         $cash = (float) ($withdraw->cash ?? 0);
         $gold = (float) ($withdraw->gold ?? 0);
 
         if (abs($cash) > 1e-9) {
-            $result = $controller->wallet([
-                'customer_id' => (int) $withdraw->customer_id,
-                'value' => abs($cash),
-                'direction' => $cash >= 0 ? 0 : 1,
-                'withdraw_id' => $withdrawId,
-                'note' => $withdraw->note,
-            ]);
-
-            return $result !== false;
+            return $this->outcomeFromController(
+                $controller->wallet([
+                    'customer_id' => (int) $withdraw->customer_id,
+                    'value' => abs($cash),
+                    'direction' => $cash >= 0 ? 0 : 1,
+                    'withdraw_id' => $withdrawId,
+                    'note' => $withdraw->note,
+                ]),
+                'سند شارژ/برداشت ثبت شد',
+                'ارسال شارژ/برداشت ناموفق بود'
+            );
         }
 
         if (abs($gold) > 1e-9) {
-            $result = $controller->walletGold([
-                'customer_id' => (int) $withdraw->customer_id,
-                'value' => abs($gold),
-                'direction' => $gold >= 0 ? 1 : 0,
-                'withdraw_id' => $withdrawId,
-                'note' => $withdraw->note,
-            ]);
-
-            return $result !== false;
+            return $this->outcomeFromController(
+                $controller->walletGold([
+                    'customer_id' => (int) $withdraw->customer_id,
+                    'value' => abs($gold),
+                    'direction' => $gold >= 0 ? 1 : 0,
+                    'withdraw_id' => $withdrawId,
+                    'note' => $withdraw->note,
+                ]),
+                'سند شارژ/برداشت ثبت شد',
+                'ارسال شارژ/برداشت ناموفق بود'
+            );
         }
 
-        return false;
+        return ['ok' => false, 'message' => 'مبلغ شارژ صفر است'];
     }
 
-    private function backfillOrder(TahesabController $controller, int $orderId): bool
+    private function backfillOrder(TahesabController $controller, int $orderId): array
     {
         $order = \App\Models\Order::query()->with('product')->find($orderId);
         if (! $order || ! $order->customer_id) {
-            return false;
+            return ['ok' => false, 'message' => 'سفارش بدون مشتری است'];
         }
 
         $product = $order->product;
@@ -708,9 +720,11 @@ class TahesabSyncService
             'order' => ['id' => $orderId, 'product_id' => $order->product_id],
         ];
 
-        $result = $controller->storeTrade($payload);
-
-        return $result !== false;
+        return $this->outcomeFromController(
+            $controller->storeTrade($payload),
+            'سند سفارش ثبت شد',
+            'ارسال سفارش ناموفق بود'
+        );
     }
 
     public function ensureLocalTable(): bool