diff --git a/app/Classes/Jobs/CreatePerfexCRMInvoice.php b/app/Classes/Jobs/CreatePerfexCRMInvoice.php
new file mode 100644
index 00000000..a6905be4
--- /dev/null
+++ b/app/Classes/Jobs/CreatePerfexCRMInvoice.php
@@ -0,0 +1,42 @@
+<?php
+
+namespace App\Classes\Jobs;
+
+use App\Classes\Modules\PerfexCRM\Processors\CreatePerfexCRMInvoiceProcessor;
+use Illuminate\Bus\Queueable;
+use Illuminate\Contracts\Queue\ShouldQueue;
+use Illuminate\Foundation\Bus\Dispatchable;
+use Illuminate\Queue\InteractsWithQueue;
+use Illuminate\Queue\SerializesModels;
+
+class CreatePerfexCRMInvoice implements ShouldQueue
+{
+    use Dispatchable, InteractsWithQueue, Queueable, SerializesModels;
+
+    /** @var $transaction*/
+    private $transaction;
+
+    /** @var $purchaseOrder*/
+    private $purchaseOrder;
+
+    /** @var $supplier*/
+    private $supplier;
+
+    /**
+     * CreatePerfexCRMInvoice constructor.
+     * @param $transaction
+     * @param $purchaseOrder
+     * @param $supplier
+     */
+    public function __construct($transaction, $purchaseOrder, $supplier)
+    {
+        $this->transaction = $transaction;
+        $this->purchaseOrder = $purchaseOrder;
+        $this->supplier = $supplier;
+    }
+
+    public function handle()
+    {
+        (App()->make(CreatePerfexCRMInvoiceProcessor::class))->execute($this->transaction, $this->purchaseOrder, $this->supplier);
+    }
+}
diff --git a/app/Classes/Modules/PerfexCRM/DataTransferObjects/InvoicePerfexCRMObject.php b/app/Classes/Modules/PerfexCRM/DataTransferObjects/InvoicePerfexCRMObject.php
index 7e204ff8..f1f21f11 100644
--- a/app/Classes/Modules/PerfexCRM/DataTransferObjects/InvoicePerfexCRMObject.php
+++ b/app/Classes/Modules/PerfexCRM/DataTransferObjects/InvoicePerfexCRMObject.php
@@ -7,7 +7,7 @@ use App\Classes\General\Interfaces\DataTransferObject;
 
 class InvoicePerfexCRMObject implements DataTransferObject
 {
-    /** @var int */
+    /** @var string */
     private $clientId;
 
     /** @var string */
@@ -56,9 +56,9 @@ class InvoicePerfexCRMObject implements DataTransferObject
     }
 
     /**
-     * @return int
+     * @return string
      */
-    public function getClientId(): int
+    public function getClientId(): string
     {
         return $this->clientId;
     }
diff --git a/app/Classes/Modules/PerfexCRM/DataTransferObjects/InvoiceSingleItemPerfexCRMObject.php b/app/Classes/Modules/PerfexCRM/DataTransferObjects/InvoiceSingleItemPerfexCRMObject.php
index 4f92895d..7b9428db 100644
--- a/app/Classes/Modules/PerfexCRM/DataTransferObjects/InvoiceSingleItemPerfexCRMObject.php
+++ b/app/Classes/Modules/PerfexCRM/DataTransferObjects/InvoiceSingleItemPerfexCRMObject.php
@@ -14,7 +14,7 @@ class InvoiceSingleItemPerfexCRMObject implements DataTransferObject
     /** @var string */
     public $longDescription;
 
-    /** @var int */
+    /** @var float */
     public $qty;
 
     /** @var float */
@@ -26,7 +26,7 @@ class InvoiceSingleItemPerfexCRMObject implements DataTransferObject
     /** @var string */
     public $unit;
 
-    public function __construct(string $description, string $longDescription, int $qty, float $rate, int $order, string $unit)
+    public function __construct(string $description, string $longDescription, float $qty, float $rate, int $order, string $unit)
     {
         $this->description = $description;
         $this->longDescription = $longDescription;
@@ -53,9 +53,9 @@ class InvoiceSingleItemPerfexCRMObject implements DataTransferObject
     }
 
     /**
-     * @return int
+     * @return float
      */
-    public function getQty(): int
+    public function getQty(): float
     {
         return $this->qty;
     }
diff --git a/app/Classes/Modules/PerfexCRM/Processors/CreatePerfexCRMInvoiceProcessor.php b/app/Classes/Modules/PerfexCRM/Processors/CreatePerfexCRMInvoiceProcessor.php
index 7a893bde..2086276d 100644
--- a/app/Classes/Modules/PerfexCRM/Processors/CreatePerfexCRMInvoiceProcessor.php
+++ b/app/Classes/Modules/PerfexCRM/Processors/CreatePerfexCRMInvoiceProcessor.php
@@ -6,6 +6,7 @@ namespace App\Classes\Modules\PerfexCRM\Processors;
 use App\Classes\Modules\PerfexCRM\Services\CreatesPerfexCRMInvoice;
 use App\Classes\Modules\PerfexCRM\Services\CreatesPerfexCRMInvoicePayment;
 use App\Classes\Modules\PerfexCRM\Services\ConvertsPerfexCRMLeadToCustomer;
+use App\Classes\Modules\PerfexCRM\Services\FetchesPerfexCRMProject;
 use App\Classes\Modules\PerfexCRM\DataTransferObjects\InvoicePerfexCRMObject;
 use App\Classes\Modules\PerfexCRM\DataTransferObjects\InvoicePaymentPerfexCRMObject;
 use App\Classes\Modules\PerfexCRM\DataTransferObjects\InvoiceSingleItemPerfexCRMObject;
@@ -23,17 +24,22 @@ class CreatePerfexCRMInvoiceProcessor
     /** @var ConvertsPerfexCRMLeadToCustomer */
     private $convertsPerfexCRMLeadToCustomer;
 
+    /** @var FetchesPerfexCRMProject */
+    private $fetchesPerfexCRMProject;
+
     /**
      * CreatePerfexCRMInvoiceProcessor constructor.
      * @param CreatesPerfexCRMInvoice $createsPerfexCRMInvoice
      */
     public function __construct(CreatesPerfexCRMInvoice $createsPerfexCRMInvoice,
     CreatesPerfexCRMInvoicePayment $createsPerfexCRMInvoicePayment,
-    ConvertsPerfexCRMLeadToCustomer $convertsPerfexCRMLeadToCustomer)
+    ConvertsPerfexCRMLeadToCustomer $convertsPerfexCRMLeadToCustomer,
+    FetchesPerfexCRMProject $fetchesPerfexCRMProject)
     {
         $this->createsPerfexCRMInvoice = $createsPerfexCRMInvoice;
         $this->createsPerfexCRMInvoicePayment = $createsPerfexCRMInvoicePayment;
         $this->convertsPerfexCRMLeadToCustomer = $convertsPerfexCRMLeadToCustomer;
+        $this->fetchesPerfexCRMProject = $fetchesPerfexCRMProject;
     }
 
     /**
@@ -44,12 +50,16 @@ class CreatePerfexCRMInvoiceProcessor
      * @throws \App\Classes\Exceptions\MalformedRequestException
      */
     public function execute($transaction, $purchaseOrder, $supplier) {
+
         $clientId = "";
         $number = $transaction->bill_no;
         $prefix = "INV-";
+
+        //This will remove the prefix if prefix already exist in the string
         if (substr($number, 0, strlen($prefix)) == $prefix) {
             $number = substr($number, strlen($prefix));
         }
+        $number = 'EXC-'.$number;
 
         $date = Carbon::parse($transaction->booking->created_at)->format('Y-m-d');
         $dueDate = Carbon::parse($transaction->booking->created_at)->format('Y-m-d');
@@ -67,17 +77,27 @@ class CreatePerfexCRMInvoiceProcessor
         $billingStreet = $billingStreet.$addresses->state()->first()->name.',';
         $billingStreet = $billingStreet.$addresses->country()->first()->name;
 
-        $projectId = "";
+
         $allowedPaymentModes = [];
         $invoiceItems = [];
 
         $email = $supplier->employees()->first()->email;
-        $email = 'dillon37@yahoo.com'; //cief TODO: To be updated to user actual email address
+
         $result = $this->convertsPerfexCRMLeadToCustomer->execute($email);
         if(isset($result->payload)){
             $clientId = $result->payload['client_id'];
         }
 
+        //get project
+        $projectId = "";
+        $bookingMarking = $transaction->owner->marking;
+        $serviceTypeName = $transaction->owner->company->services()->where('id', $transaction->owner->service_id)->first()->name;
+        $projectName = 'Exchange | '.$serviceTypeName.' | '.$bookingMarking;
+        $project = $this->fetchesPerfexCRMProject->execute($projectName, $clientId);
+        if(!is_null($project)){
+            $projectId = $project->id;
+        }
+
         //newitems
         foreach ($purchaseOrder->transactionDetails as $key => $transaction_detail){
             $order = $key + 1;
@@ -94,12 +114,12 @@ class CreatePerfexCRMInvoiceProcessor
             if($transaction->booking()->first()->fix_currency_id !== 1){
 
                 //$totalAmount = (float)number_format( (1/$transaction->currency_rate) * $transaction_detail->price, 2,'.','')*$transaction_detail->quantity;
-                $subTotal += (1/$transaction->currency_rate) * $transaction_detail->price * $transaction_detail->quantity;
+                $subTotal += number_format((1/$transaction->currency_rate) * $transaction_detail->price, 2,'.','') * $transaction_detail->quantity;
             }
             else
             {
                 //$totalAmount = (float)number_format($transaction_detail->price, 2,'.','')*$transaction_detail->quantity;
-                $subTotal += $transaction_detail->price * $transaction_detail->quantity;
+                $subTotal += number_format($transaction_detail->price, 2,'.','') * $transaction_detail->quantity;
             }
 
             //string $description, string $longDescription, int $qty, int $rate, int $order, string $unit
@@ -121,7 +141,8 @@ class CreatePerfexCRMInvoiceProcessor
             $total = $transaction->amount + $transaction->service_charge + $transaction->tax;
         }
 
-        //cief TODO: To be updated, temporarily hardcoded allow payment modes
+        //This setting is similar to Setup > Leads > Sources, Setup > Leads > Statuses
+        //Can be found at Finance > Payment Modes
         array_push($allowedPaymentModes, 1, 2);
 
         $invoicePerfexCRMObject = new InvoicePerfexCRMObject(
@@ -140,18 +161,23 @@ class CreatePerfexCRMInvoiceProcessor
 
         $result = $this->createsPerfexCRMInvoice->execute($invoicePerfexCRMObject);
 
-        //If there is a checking whether an payment to an invoice need to be generated, do it here
-        if(true && $result->payload['id']){
-            $invoicePaymentPerfexCRMObject = new InvoicePaymentPerfexCRMObject(
-                $result->payload['id'],
-                $total,
-                $date,
-                1,
-                "",
-                ""
-            );
-            $this->createsPerfexCRMInvoicePayment->execute($invoicePaymentPerfexCRMObject);
+        if(!is_null($result))
+        {
+            if($result->payload['id']){
+                $invoicePaymentPerfexCRMObject = new InvoicePaymentPerfexCRMObject(
+                    $result->payload['id'],
+                    $total,
+                    $date,
+                    1,
+                    "",
+                    ""
+                );
+                $this->createsPerfexCRMInvoicePayment->execute($invoicePaymentPerfexCRMObject);
+            }
         }
+        //else: logs will record the following:
+        //"status":false,"error":{"number":"The Invoice number is already in use"},"message":"<p>The Invoice number is already in use<\/p>"}
+
 
         return true;
     }
diff --git a/app/Classes/Modules/PerfexCRM/Services/CreatesPerfexCRMInvoice.php b/app/Classes/Modules/PerfexCRM/Services/CreatesPerfexCRMInvoice.php
index 196e3130..b595a86f 100644
--- a/app/Classes/Modules/PerfexCRM/Services/CreatesPerfexCRMInvoice.php
+++ b/app/Classes/Modules/PerfexCRM/Services/CreatesPerfexCRMInvoice.php
@@ -22,8 +22,8 @@ class CreatesPerfexCRMInvoice
                 'date' => $invoicePerfexCRMObject->getDate(),
                 'duedate' => $invoicePerfexCRMObject->getDueDate(),
                 'currency' => $invoicePerfexCRMObject->getCurrency(),
-                'subtotal' => $invoicePerfexCRMObject->getSubTotal(),
-                'total' => $invoicePerfexCRMObject->getTotal(),
+                'subtotal' => number_format($invoicePerfexCRMObject->getSubTotal(), 2, '.', ''),
+                'total' => number_format($invoicePerfexCRMObject->getTotal(), 2, '.', ''),
                 'billing_street' => $invoicePerfexCRMObject->getBillingStreet(),
                 'project_id' => $invoicePerfexCRMObject->getProjectId(),
                 'allowed_payment_modes[0]' => 1,
diff --git a/app/Classes/Modules/PerfexCRM/Services/CreatesPerfexCRMInvoicePayment.php b/app/Classes/Modules/PerfexCRM/Services/CreatesPerfexCRMInvoicePayment.php
index 035cc1b8..f3e92529 100644
--- a/app/Classes/Modules/PerfexCRM/Services/CreatesPerfexCRMInvoicePayment.php
+++ b/app/Classes/Modules/PerfexCRM/Services/CreatesPerfexCRMInvoicePayment.php
@@ -18,7 +18,7 @@ class CreatesPerfexCRMInvoicePayment
         try{
             $data = [
                 'invoiceid' => $invoicePaymentPerfexCRMObject->getInvoiceId(),
-                'amount' => $invoicePaymentPerfexCRMObject->getAmount(),
+                'amount' => number_format($invoicePaymentPerfexCRMObject->getAmount(), 2, '.', ''),
                 'date' => $invoicePaymentPerfexCRMObject->getDate(),
                 'paymentmode' => $invoicePaymentPerfexCRMObject->getPaymentMode(),
                 'transactionid' => $invoicePaymentPerfexCRMObject->getTransactionId(),
diff --git a/app/Classes/Modules/PerfexCRM/Services/FetchesPerfexCRMCustomer.php b/app/Classes/Modules/PerfexCRM/Services/FetchesPerfexCRMCustomer.php
new file mode 100644
index 00000000..9f3928f6
--- /dev/null
+++ b/app/Classes/Modules/PerfexCRM/Services/FetchesPerfexCRMCustomer.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace App\Classes\Modules\PerfexCRM\Services;
+
+use Illuminate\Support\Facades\Http;
+use App\Classes\Exceptions\MalformedRequestException;
+use Illuminate\Support\Facades\Log;
+
+class FetchesPerfexCRMCustomer
+{
+    /**
+     * @param string $email
+     * @return null|object
+     * @throws MalformedRequestException
+     */
+    public function execute(string $email) {
+        try{
+            $response = Http::withHeaders([
+                'authtoken' => config('perfexcrm.api_key'),])
+            ->get(config('perfexcrm.base_url').'/api/customers/byemail/'.$email);
+
+            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());
+        }
+    }
+}
diff --git a/app/Classes/Modules/PerfexCRM/Services/FetchesPerfexCRMInvoice.php b/app/Classes/Modules/PerfexCRM/Services/FetchesPerfexCRMInvoice.php
new file mode 100644
index 00000000..cd7aff30
--- /dev/null
+++ b/app/Classes/Modules/PerfexCRM/Services/FetchesPerfexCRMInvoice.php
@@ -0,0 +1,36 @@
+<?php
+
+namespace App\Classes\Modules\PerfexCRM\Services;
+
+use Illuminate\Support\Facades\Http;
+use App\Classes\Exceptions\MalformedRequestException;
+use Illuminate\Support\Facades\Log;
+
+class FetchesPerfexCRMInvoice
+{
+    /**
+     * @param string $clientId
+     * @param string $invoicePrefix
+     * @param string $invoiceNumber
+     * @return null|object
+     * @throws MalformedRequestException
+     */
+    public function execute(string $clientId, string $invoicePrefix, string $invoiceNumber) {
+        try{
+            $response = Http::withHeaders([
+                'authtoken' => config('perfexcrm.api_key'),])
+            ->get(config('perfexcrm.base_url').'/api/invoices/customsearch/'.$clientId.'/'.$invoicePrefix.'/'.$invoiceNumber);
+
+            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());
+        }
+    }
+}
diff --git a/app/Classes/Modules/PerfexCRM/Services/UpdatesPerfexCRMInvoice.php b/app/Classes/Modules/PerfexCRM/Services/UpdatesPerfexCRMInvoice.php
new file mode 100644
index 00000000..5240d931
--- /dev/null
+++ b/app/Classes/Modules/PerfexCRM/Services/UpdatesPerfexCRMInvoice.php
@@ -0,0 +1,68 @@
+<?php
+
+namespace App\Classes\Modules\PerfexCRM\Services;
+
+use Illuminate\Support\Facades\Http;
+use App\Classes\Exceptions\MalformedRequestException;
+use Illuminate\Support\Facades\Log;
+
+class UpdatesPerfexCRMInvoice
+{
+
+    /**
+     * @param $invoice
+     * @param string $projectId
+     * @return null|object
+     * @throws MalformedRequestException
+     */
+    public function execute($invoice, string $projectId) {
+        try{
+            // <p>The Invoice number field is required.<\/p>
+            // <p>The Invoice date field is required.<\/p>
+            // <p>The Currency field is required.<\/p>
+            // <p>The Items field is required.<\/p>
+            // <p>The Allow Payment Mode field is required.<\/p>
+            // <p>The Billing Street field is required.<\/p>
+            // <p>The Sub Total field is required.<\/p>
+            // <p>The Total field is required.<\/p>
+
+            $newInvoiceItems = [];
+            foreach ($invoice->items as $item) {
+                $item['itemid'] = $item['id'];
+                unset($item['id']);
+                $item['order'] = $item['item_order'];
+                unset($item['item_order']);
+                array_push($newInvoiceItems,$item);
+            }
+
+            $data = [
+                'number' => $invoice->number,
+                'date' => $invoice->date,
+                'duedate' => $invoice->date,
+                'currency' => $invoice->currency,
+                'subtotal' => $invoice->subtotal,
+                'total' => $invoice->total,
+                'billing_street' => $invoice->billing_street,
+                'shipping_street' => $invoice->billing_street,
+                'project_id' => $projectId,
+                'items' => $newInvoiceItems,
+                'allowed_payment_modes' => $invoice->allowed_payment_modes,
+            ];
+
+            $response = Http::asJson()->withHeaders([
+                'authtoken' => config('perfexcrm.api_key')])
+            ->put(config('perfexcrm.base_url').'/api/invoices/'.$invoice->id, $data);
+
+            if($response->successful()){
+                $data = $response->json();
+                return (object) $data;
+            }else{
+                Log::error($response);
+                return null;
+            }
+        }catch(\Exception $exception){
+            dd(json_encode($exception));
+            throw new MalformedRequestException('Unable to get correct response from Perfex CRM server: ' . $exception->getMessage());
+        }
+    }
+}
diff --git a/app/Classes/Modules/Transactions/Processors/CreateInvoiceTransactionProcessor.php b/app/Classes/Modules/Transactions/Processors/CreateInvoiceTransactionProcessor.php
index a983a332..d48d4d5b 100644
--- a/app/Classes/Modules/Transactions/Processors/CreateInvoiceTransactionProcessor.php
+++ b/app/Classes/Modules/Transactions/Processors/CreateInvoiceTransactionProcessor.php
@@ -14,11 +14,11 @@ use App\Classes\Modules\Bookings\Services\CalculatesBookingCurrencyAverageRate;
 use App\Classes\Modules\Companies\Services\FetchesCompany;
 use App\Classes\Modules\Bookings\Services\UpdatesBookingStatus;
 use App\Classes\Modules\Transactions\DataTransferObjects\TransactionObject;
-use App\Classes\Modules\PerfexCRM\Processors\CreatePerfexCRMInvoiceProcessor;
 use App\Classes\ValueObjects\Constants\ApprovalStatus;
 use App\Classes\ValueObjects\Constants\SegmentConstants;
 use App\Classes\ValueObjects\Constants\TransactionType;
 use App\Classes\ValueObjects\Constants\DocumentType;
+use App\Classes\Jobs\CreatePerfexCRMInvoice;
 use App\Models\Booking;
 use App\Models\SegmentConstant;
 
@@ -52,8 +52,6 @@ class CreateInvoiceTransactionProcessor
     /** @var CreateInvoiceDocumentProcessor */
     private $invoiceDocumentProcessor;
 
-    /** @var CreatePerfexCRMInvoiceProcessor */
-    private $createPerfexCRMInvoiceProcessor;
 
     /**
      * CreateInvoiceTransactionProcessor constructor.
@@ -68,9 +66,8 @@ class CreateInvoiceTransactionProcessor
      * @param FetchesCompany $fetchesCompany
      * @param UpdatesBookingStatus $updatesBookingStatus
      * @param CreateInvoiceDocumentProcessor $invoiceDocumentProcessor
-     * @param CreatePerfexCRMInvoiceProcessor $createPerfexCRMInvoiceProcessor
      */
-    public function __construct(ListsTransactions $listsTransactions, CreatesTransaction $createsTransaction, GeneratesTransactionBillNumber $generatesTransactionBillNumber, CalculatesBookingPaidAmount $calculatesBookingPaidAmount, CalculatesBookingPayableAmount $calculatesBookingPayableAmount, CalculatesBookingTransferredAmount $calculatesBookingTransferredAmount, FetchesServiceConfigurations $fetchesServiceConfigurations, CalculatesBookingCurrencyAverageRate $calculatesBookingCurrencyAverageRate, FetchesCompany $fetchesCompany, UpdatesBookingStatus $updatesBookingStatus, CreateInvoiceDocumentProcessor $invoiceDocumentProcessor, CreatePerfexCRMInvoiceProcessor $createPerfexCRMInvoiceProcessor)
+    public function __construct(ListsTransactions $listsTransactions, CreatesTransaction $createsTransaction, GeneratesTransactionBillNumber $generatesTransactionBillNumber, CalculatesBookingPaidAmount $calculatesBookingPaidAmount, CalculatesBookingPayableAmount $calculatesBookingPayableAmount, CalculatesBookingTransferredAmount $calculatesBookingTransferredAmount, FetchesServiceConfigurations $fetchesServiceConfigurations, CalculatesBookingCurrencyAverageRate $calculatesBookingCurrencyAverageRate, FetchesCompany $fetchesCompany, UpdatesBookingStatus $updatesBookingStatus, CreateInvoiceDocumentProcessor $invoiceDocumentProcessor)
     {
         $this->createsTransaction = $createsTransaction;
         $this->generatesTransactionBillNumber = $generatesTransactionBillNumber;
@@ -81,7 +78,6 @@ class CreateInvoiceTransactionProcessor
         $this->fetchesCompany = $fetchesCompany;
         $this->updatesBookingStatus = $updatesBookingStatus;
         $this->invoiceDocumentProcessor = $invoiceDocumentProcessor;
-        $this->createPerfexCRMInvoiceProcessor = $createPerfexCRMInvoiceProcessor;
     }
 
 
@@ -199,10 +195,9 @@ class CreateInvoiceTransactionProcessor
         $this->invoiceDocumentProcessor->execute($supplier_deliver_order_transaction, $purchaseOrder, $supplier, DocumentType::SUPPLIER_DELIVER_ORDER);
 
         // update perfex crm
-        // if(config('perfexcrm.is_enabled') == 'true'){
-        // {
-        //     $this->createPerfexCRMInvoiceProcessor->execute($invoice_transaction, $purchaseOrder, $supplier);
-        // }
+        if(config('perfexcrm.is_enabled') == 'true'){
+            CreatePerfexCRMInvoice::dispatch($invoice_transaction, $purchaseOrder, $supplier);
+        }
 
         $this->updatesBookingStatus->execute($booking, ApprovalStatus::COMPLETED);
     }
diff --git a/app/Classes/ValueObjects/Constants/PerfexCRMInvoiceStatus.php b/app/Classes/ValueObjects/Constants/PerfexCRMInvoiceStatus.php
new file mode 100644
index 00000000..2e692129
--- /dev/null
+++ b/app/Classes/ValueObjects/Constants/PerfexCRMInvoiceStatus.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace App\Classes\ValueObjects\Constants;
+
+final class PerfexCRMInvoiceStatus {
+
+    public const UNPAID = 1;
+
+    public const PAID = 2;
+
+    public const PARTIALLY_PAID = 3;
+
+    public const OVERDUE = 4;
+}