diff --git a/Modules/Agents/Entities/Customer.php b/Modules/Agents/Entities/Customer.php
index c972c14..6f43120 100755
--- a/Modules/Agents/Entities/Customer.php
+++ b/Modules/Agents/Entities/Customer.php
@@ -7,9 +7,10 @@ use Illuminate\Database\Eloquent\Factories\HasFactory;
 
 class Customer extends Model
 {
-    use HasFactory;
+    use HasFactory, \Illuminate\Database\Eloquent\SoftDeletes;
     protected $table = 'se_customers';
     protected $fillable = ['id', 'name', 'phone', 'email', 'grade', 'msg', 'agent_id', 'created_at', 'created_by', 'updated_at', 'updated_by', 'deleted_at'];
+    protected $dates = ['deleted_at'];
     
     // protected static function newFactory()
     // {
diff --git a/Modules/Agents/Services/AgentService.php b/Modules/Agents/Services/AgentService.php
index e773a1e..39eba56 100644
--- a/Modules/Agents/Services/AgentService.php
+++ b/Modules/Agents/Services/AgentService.php
@@ -5,9 +5,11 @@ use Illuminate\Support\Arr;
 use Modules\Agents\Entities\Customer;
 use App\Models\Agent;
 use App\Models\AgentUser;
+use Carbon\Carbon;
 
 class AgentService
 {
+    const DISTANCE_DAY_DEFAULT = 15;
     protected $modelCustomer;
     protected $modelAgent;
     protected $modelAgentUser;
@@ -40,6 +42,8 @@ class AgentService
         // check agent user with code input
         $checkAgentUser = $this->modelAgentUser->where('code', $dataInput['agents_code'])->first();
 
+        $now = Carbon::now();
+
         if (empty($checkAgentUser)) {
             return array('status' => false, 'msg' => $this->getMessageReturn('no_data_agent'));
         }
@@ -47,23 +51,32 @@ class AgentService
 
         \DB::beginTransaction();
         try {
-            $checkHasAgent = $this->modelCustomer->where('agent_id', $agentId)->latest()->first();
-           
-            if (empty($checkHasAgent)) {
-                $dataInsert = Arr::except($dataInput, ['agents_code']);
-                $dataInsert['agent_id'] = $agentId;
+            $dataInsert = Arr::except($dataInput, ['agents_code']); // remove agents_code array
+
+            $dateNotToo = Carbon::now()->subDays(self::DISTANCE_DAY_DEFAULT);
+            $customerAgent = $this->modelCustomer->where('agent_id', $agentId)->where('phone', $dataInput['phone'])->latest()->first();
 
+            // tìm các dữ liệu từ ngày hiện tại trừ đi không được quá 15 ngày
+            $customerAgentAll = $this->modelCustomer->where('phone', $dataInput['phone'])->where('agent_id', '<>',$agentId)->where('created_at', '>=', $dateNotToo)->latest()->first();
+            
+            if(!empty($customerAgentAll)){
+                // chưa quá 15 ngày thì lấy cái agent_id cũ, đang trực thuộc
+                $dataInsert['agent_id'] = $customerAgentAll->agent_id;
                 $result = $this->modelCustomer->insert($dataInsert);
-                \DB::commit();
-                return ['status' => true, 'msg' => $this->getMessageReturn('success_insert_customer')];
             }else{
-                $dataInsert = Arr::except($dataInput, ['agents_code']);
+                // quá 15 ngày thì lấy agent_id check ra từ mã đại lý
                 $dataInsert['agent_id'] = $agentId;
-
                 $result = $this->modelCustomer->insert($dataInsert);
-                \DB::commit();
-                return ['status' => true, 'msg' => $this->getMessageReturn('success_insert_customer')];
+                // nếu agent id cũ != cái hiện tại check
+                $checkOldCustomer = $this->modelCustomer->where('phone', $dataInput['phone'])->where('agent_id', '=',$agentId)->latest()->first();
+                if($agentId != $checkOldCustomer->agent_id){
+                    $this->modelCustomer->where('phone', $dataInput['phone'])->where('agent_id', '<>',$agentId)->where('created_at', '<=', $dateNotToo)->delete();
+                }
             }
+
+            \DB::commit();
+            return ['status' => true, 'msg' => $this->getMessageReturn('success_insert_customer')];
+            
         } catch (\Exception $e) {
             \DB::rollBack();
         }