diff --git a/app/Classes/Jobs/CreatePerfexCRMCustomer.php b/app/Classes/Jobs/CreatePerfexCRMCustomer.php
index b313dca6..4d7acddd 100644
--- a/app/Classes/Jobs/CreatePerfexCRMCustomer.php
+++ b/app/Classes/Jobs/CreatePerfexCRMCustomer.php
@@ -3,6 +3,8 @@
 namespace App\Classes\Jobs;
 
 use App\Classes\Modules\PerfexCRM\Processors\CreatePerfexCRMLeadProcessor;
+use App\Classes\Modules\PerfexCRM\Services\FetchesPerfexCRMLead;
+use App\Classes\Modules\PerfexCRM\Services\UpdatesPerfexCRMLead;
 use Illuminate\Bus\Queueable;
 use Illuminate\Contracts\Queue\ShouldQueue;
 use Illuminate\Foundation\Bus\Dispatchable;
@@ -28,6 +30,12 @@ class CreatePerfexCRMCustomer implements ShouldQueue
 
     public function handle()
     {
-        (App()->make(CreatePerfexCRMLeadProcessor::class))->execute($this->createLeadPerfexCRMObject);
+        $lead = (App()->make(FetchesPerfexCRMLead::class))->execute($this->createLeadPerfexCRMObject->getEmail());
+        if(!is_null($lead)){
+            (App()->make(UpdatesPerfexCRMLead::class))->execute($lead, $this->createLeadPerfexCRMObject->getCompanyReference());
+        }
+        else{
+            (App()->make(CreatePerfexCRMLeadProcessor::class))->execute($this->createLeadPerfexCRMObject);
+        }
     }
 }
diff --git a/app/Classes/Modules/Accounts/ControllersLogic/CreateCustomerLogic.php b/app/Classes/Modules/Accounts/ControllersLogic/CreateCustomerLogic.php
index 518a3d73..41e1f5b3 100644
--- a/app/Classes/Modules/Accounts/ControllersLogic/CreateCustomerLogic.php
+++ b/app/Classes/Modules/Accounts/ControllersLogic/CreateCustomerLogic.php
@@ -127,7 +127,8 @@ class CreateCustomerLogic extends AbstractControllerLogic
                 $request->input('name'),
                 $request->input('email'),
                 $request->input('phone'),
-                $request->input('type') === CompanyType::COMPANY_BUSINESS ? $request->input('company_name') : $request->input('name')
+                $request->input('type') === CompanyType::COMPANY_BUSINESS ? $request->input('company_name') : $request->input('name'),
+                $company->reference
             );
             CreatePerfexCRMCustomer::dispatch($createLeadPerfexCRMObject);
         }
diff --git a/app/Classes/Modules/PerfexCRM/DataTransferObjects/CreateLeadPerfexCRMObject.php b/app/Classes/Modules/PerfexCRM/DataTransferObjects/CreateLeadPerfexCRMObject.php
index fc4c17cd..bea178f5 100644
--- a/app/Classes/Modules/PerfexCRM/DataTransferObjects/CreateLeadPerfexCRMObject.php
+++ b/app/Classes/Modules/PerfexCRM/DataTransferObjects/CreateLeadPerfexCRMObject.php
@@ -19,13 +19,17 @@ class CreateLeadPerfexCRMObject implements DataTransferObject
     /** @var string */
     private $companyName;
 
+    /** @var string */
+    private $companyReference;
 
-    public function __construct(string $name, string $email, string $phone, string $companyName)
+
+    public function __construct(string $name, string $email, string $phone, string $companyName, string $companyReference)
     {
         $this->name = $name;
         $this->email = $email;
         $this->phone = $phone;
         $this->companyName = $companyName;
+        $this->companyReference = $companyReference;
     }
 
     /**
@@ -60,4 +64,11 @@ class CreateLeadPerfexCRMObject implements DataTransferObject
         return $this->companyName;
     }
 
+    /**
+     * @return string
+     */
+    public function getCompanyReference(): string
+    {
+        return $this->companyReference;
+    }
 }
diff --git a/app/Classes/Modules/PerfexCRM/Services/CreatesPerfexCRMLead.php b/app/Classes/Modules/PerfexCRM/Services/CreatesPerfexCRMLead.php
index b1706c03..373f4171 100644
--- a/app/Classes/Modules/PerfexCRM/Services/CreatesPerfexCRMLead.php
+++ b/app/Classes/Modules/PerfexCRM/Services/CreatesPerfexCRMLead.php
@@ -16,13 +16,20 @@ class CreatesPerfexCRMLead
      */
     public function execute(CreateLeadPerfexCRMObject $createLeadPerfexCRMObject) {
         try{
+            $custom_fields = [
+                "leads" => [
+                    3 => $createLeadPerfexCRMObject->getCompanyReference()
+                ]
+            ];
+
             $data = [
                 'name' => $createLeadPerfexCRMObject->getName(),
                 'email' => $createLeadPerfexCRMObject->getEmail(),
                 'phonenumber' => $createLeadPerfexCRMObject->getPhone(),
                 'company' => $createLeadPerfexCRMObject->getCompanyName(),
                 'source' => 1, //1: Exchange, 2: Shipping Portal
-                'status' => 2 //2: Lead, 1: Customer
+                'status' => 2, //2: Lead, 1: Customer,
+                'custom_fields' => $custom_fields
             ];
 
             $response = Http::asForm()->withHeaders([
diff --git a/app/Classes/Modules/PerfexCRM/Services/UpdatesPerfexCRMLead.php b/app/Classes/Modules/PerfexCRM/Services/UpdatesPerfexCRMLead.php
new file mode 100644
index 00000000..b9090c2e
--- /dev/null
+++ b/app/Classes/Modules/PerfexCRM/Services/UpdatesPerfexCRMLead.php
@@ -0,0 +1,50 @@
+<?php
+
+namespace App\Classes\Modules\PerfexCRM\Services;
+
+use Illuminate\Support\Facades\Http;
+use App\Classes\Exceptions\MalformedRequestException;
+use Illuminate\Support\Facades\Log;
+
+class UpdatesPerfexCRMLead
+{
+    /**
+     * @param $lead
+     * @param string $companyReference
+     * @return null|object
+     * @throws MalformedRequestException
+     */
+    public function execute($lead, string $companyReference) {
+        try{
+            $custom_fields = [
+                "leads" => [
+                    3 => $companyReference
+                ]
+            ];
+
+            $data = [
+                'name' => $lead->name,
+                'email' => $lead->email,
+                'phonenumber' => $lead->phonenumber,
+                'company' => $lead->company,
+                'custom_fields' => $custom_fields,
+                'source' => $lead->source,
+                'status' => $lead->status,
+            ];
+
+            $response = Http::asJson()->withHeaders([
+                'authtoken' => config('perfexcrm.api_key')])
+            ->put(config('perfexcrm.base_url').'/api/leads/'.$lead->id, $data);
+
+            if($response->successful()){
+                $data = $response->json();
+                return (object) $data;
+            }else{
+                Log::error($response);
+                return null;
+            }
+        }catch(\Exception $exception){
+            throw new MalformedRequestException('Unable to get correct response from Perfex CRM server: ' . $exception->getMessage());
+        }
+    }
+}