diff --git a/app/Http/Controllers/Api/v1/CouponsController.php b/app/Http/Controllers/Api/v1/CouponsController.php
index 90d84bb..8b4fd6a 100644
--- a/app/Http/Controllers/Api/v1/CouponsController.php
+++ b/app/Http/Controllers/Api/v1/CouponsController.php
@@ -14,6 +14,8 @@ use App\Traits\CouponTrait;
 use App\Traits\GenerateBR;
 use PDF;
 
+use App\Lib\LDCCRM\ApiV1;
+
 class CouponsController extends Controller
 {
     use CouponTrait;
@@ -26,11 +28,15 @@ class CouponsController extends Controller
         $customer = Customers::find($datas['crm_id']);
         $couponsToPrint = explode(",", $datas['coupons']);
 
+        if ($campagne->site->crm_token === null) {
+            return new StatusResource(['status' => 'KO', 'code' => 500, 'message' => 'CRM Token is missing for site_id : '. $campagne->site->site_id]);
+        }
+
         if (empty($couponsToPrint)) {
             return new StatusResource(['status' => 'KO', 'code' => 422, 'message' => 'Coupons not found.']);
         }
 
-        $crm = app('crmApi');
+        $crm = new ApiV1(config('crm.CRM_ENDPOINT'), $campagne->site->crm_token);
         $crmInfos = $crm->getCustomer($customer->crm_id);
         if ($crmInfos->status === "OK") {
             $crmInfos = $crmInfos->user;
diff --git a/app/Http/Controllers/Api/v1/CustomerController.php b/app/Http/Controllers/Api/v1/CustomerController.php
index c7bdc03..141ea55 100644
--- a/app/Http/Controllers/Api/v1/CustomerController.php
+++ b/app/Http/Controllers/Api/v1/CustomerController.php
@@ -40,9 +40,13 @@ class CustomerController extends Controller
      */
     public function store(StoreRequest $request)
     {
+        $datas = $request->validated();
         try {
-            $customer = new Customers();
-            $customer->fill($request->validated());
+            $customer = Customers::where([
+                ['crm_id', $datas['crm_id']],
+                ['email', $datas['email']]
+            ])->firstOrNew();
+            $customer->fill($datas);
             $customer->saveOrFail();
 
             return new CustomersResource($customer);
@@ -77,21 +81,12 @@ class CustomerController extends Controller
     /**
      * Update the specified resource in storage.
      *
-     * @param UpdateRequest $request
-     * @param Customers $customer
-     * @return CustomersResource | StatusResource
+     * @param Request $request
+     * @return StatusResource
      */
-    public function update(UpdateRequest $request, Customers $customer)
+    public function update(Request $request)
     {
-        try {
-            $customer->fill($request->validated());
-            $customer->saveOrFail();
-
-            return new CustomersResource($customer);
-        } catch (\Throwable $e) {
-            Log::critical($e->getMessage());
-            return new StatusResource(['status' => 'KO', 'code' => '500', 'message' => 'Server Error.']);
-        }
+        return new StatusResource(['status' => 'KO', 'code' => '501', 'message' => 'Not Implemented']);
     }
 
     /**
diff --git a/app/Http/Requests/Customers/StoreRequest.php b/app/Http/Requests/Customers/StoreRequest.php
index bcf275a..4e8da11 100644
--- a/app/Http/Requests/Customers/StoreRequest.php
+++ b/app/Http/Requests/Customers/StoreRequest.php
@@ -27,8 +27,8 @@ class StoreRequest extends FormRequest
     public function rules()
     {
         return [
-            'crm_id' => 'numeric|unique:customers,crm_id|required',
-            'email' => 'email|unique:customers,email|required',
+            'crm_id' => 'numeric|required',
+            'email' => 'email|required',
             'country' => 'string|required'
         ];
     }
diff --git a/app/Providers/CrmApiServiceProvider.php b/app/Providers/CrmApiServiceProvider.php
deleted file mode 100644
index 0e2af07..0000000
--- a/app/Providers/CrmApiServiceProvider.php
+++ /dev/null
@@ -1,22 +0,0 @@
-<?php
-
-namespace App\Providers;
-
-use Illuminate\Support\Facades\App;
-use Illuminate\Support\ServiceProvider;
-use App\Lib\LDCCRM\ApiV1;
-
-class CrmApiServiceProvider extends ServiceProvider
-{
-    /**
-     * Bootstrap the application services.
-     *
-     * @return void
-     */
-    public function boot()
-    {
-        App::singleton('crmApi', function () {
-            return new ApiV1(config('crm.CRM_ENDPOINT'), config('crm.CRM_API_TOKEN'));
-        });
-    }
-}
diff --git a/config/app.php b/config/app.php
index 8e49ff7..e399477 100644
--- a/config/app.php
+++ b/config/app.php
@@ -162,7 +162,6 @@ return [
         // App\Providers\BroadcastServiceProvider::class,
         App\Providers\EventServiceProvider::class,
         App\Providers\RouteServiceProvider::class,
-        App\Providers\CrmApiServiceProvider::class,
     ],
 
     /*
diff --git a/routes/api.php b/routes/api.php
index 78180a8..e4478a9 100644
--- a/routes/api.php
+++ b/routes/api.php
@@ -13,10 +13,6 @@ use Illuminate\Http\Request;
 |
 */
 
-Route::middleware('auth:api')->get('/user', function (Request $request) {
-    return $request->user();
-});
-
 Route::prefix('v1')
     ->group(function () {
         Route::resource('customer', 'Api\v1\CustomerController');