diff --git a/VERSION.txt b/VERSION.txt
index b4869124b9..01f861555b 100644
--- a/VERSION.txt
+++ b/VERSION.txt
@@ -1 +1 @@
-5.3.95
\ No newline at end of file
+5.3.96
\ No newline at end of file
diff --git a/app/Jobs/Inventory/AdjustProductInventory.php b/app/Jobs/Inventory/AdjustProductInventory.php
new file mode 100644
index 0000000000..60ebdf1215
--- /dev/null
+++ b/app/Jobs/Inventory/AdjustProductInventory.php
@@ -0,0 +1,95 @@
+<?php
+/**
+ * Invoice Ninja (https://invoiceninja.com).
+ *
+ * @link https://github.com/invoiceninja/invoiceninja source repository
+ *
+ * @copyright Copyright (c) 2022. Invoice Ninja LLC (https://invoiceninja.com)
+ *
+ * @license https://www.elastic.co/licensing/elastic-license
+ */
+
+namespace App\Jobs\Inventory;
+
+use App\Libraries\MultiDB;
+use App\Models\Company;
+use App\Models\Invoice;
+use App\Models\Product;
+use App\Utils\Traits\NumberFormatter;
+use Illuminate\Bus\Queueable;
+use Illuminate\Contracts\Queue\ShouldQueue;
+use Illuminate\Foundation\Bus\Dispatchable;
+use Illuminate\Queue\InteractsWithQueue;
+use Illuminate\Queue\SerializesModels;
+
+//todo - ensure we are MultiDB Aware in dispatched jobs
+
+class AdjustProductInventory implements ShouldQueue
+{
+    use Dispatchable, InteractsWithQueue, Queueable, SerializesModels;
+
+    public Company $company;
+
+    public Invoice $invoice;
+
+    public array $old_invoice;
+
+    public function __construct(Company $company, Invoice $invoice, array $old_invoice = [])
+    {
+
+        $this->company = $company;
+        $this->invoice = $invoice;
+        $this->old_invoice = $old_invoice;
+    }
+
+    /**
+     * Execute the job.
+     *
+     *
+     * @return false
+     */
+    public function handle()
+    {
+        MultiDB::setDb($this->company->db);
+
+        if(count($this->old_invoice) > 0)
+            return $this->existingInventoryAdjustment();
+
+        return $this->newInventoryAdjustment();
+
+    }
+
+    private function newInventoryAdjustment()
+    {
+        
+        $line_items = $this->invoice->line_items;
+
+        foreach($line_items as $item)
+        {
+
+            $p = Product::where('product_key', $item->product_key)->where('company_id', $this->company->id)->where('in_stock_quantity', '>', 0)->first();
+            $p->in_stock_quantity -= $item->quantity;
+            $p->save();
+
+            //check threshols and notify user
+
+            if($p->stock_notification_threshold && $p->in_stock_quantity <= $p->stock_notification_threshold)
+                $this->notifyStockLevels($p, 'product');
+            elseif($this->company->stock_notification_threshold && $p->in_stock_quantity <= $this->company->stock_notification_threshold){
+                $this->notifyStocklevels($p, 'company');
+            }
+        }
+
+    }
+
+    private function existingInventoryAdjustment()
+    {
+
+    }
+
+    private function notifyStocklevels(Product $product, string $notification_level)
+    {
+
+    }
+
+}
diff --git a/app/Models/Company.php b/app/Models/Company.php
index 8a08e6f6bb..4c02942c85 100644
--- a/app/Models/Company.php
+++ b/app/Models/Company.php
@@ -103,6 +103,10 @@ class Company extends BaseModel
         'markdown_email_enabled',
         'stop_on_unpaid_recurring',
         'use_quote_terms_on_conversion',
+        'enable_applying_payments',
+        'track_inventory',
+        'inventory_notification_threshold',
+        'stock_notification'
     ];
 
     protected $hidden = [
diff --git a/app/Models/Product.php b/app/Models/Product.php
index 44ba4c668e..129a0fae19 100644
--- a/app/Models/Product.php
+++ b/app/Models/Product.php
@@ -36,6 +36,9 @@ class Product extends BaseModel
         'tax_rate1',
         'tax_rate2',
         'tax_rate3',
+        'in_stock_quantity',
+        'stock_notification_threshold',
+        'stock_notification',
     ];
 
     protected $touches = [];
diff --git a/app/Services/Invoice/InvoiceService.php b/app/Services/Invoice/InvoiceService.php
index fdb69920ea..df74ee4fb7 100644
--- a/app/Services/Invoice/InvoiceService.php
+++ b/app/Services/Invoice/InvoiceService.php
@@ -13,6 +13,7 @@ namespace App\Services\Invoice;
 
 use App\Events\Invoice\InvoiceWasArchived;
 use App\Jobs\Entity\CreateEntityPdf;
+use App\Jobs\Inventory\AdjustProductInventory;
 use App\Jobs\Invoice\InvoiceWorkflowSettings;
 use App\Jobs\Util\UnlinkFile;
 use App\Libraries\Currency\Conversion\CurrencyApi;
@@ -564,6 +565,14 @@ class InvoiceService
         return $this;
     }
 
+    public function adjustInventory()
+    {
+        if($this->invoice->company->track_inventory)
+            AdjustProductInventory::dispatch($this->invoice->company, $this->invoice, null);
+
+        return $this;
+    }
+
     /**
      * Saves the invoice.
      * @return Invoice object
diff --git a/app/Transformers/CompanyTransformer.php b/app/Transformers/CompanyTransformer.php
index 5de5a837e8..e1a9ee0d13 100644
--- a/app/Transformers/CompanyTransformer.php
+++ b/app/Transformers/CompanyTransformer.php
@@ -170,6 +170,10 @@ class CompanyTransformer extends EntityTransformer
             'markdown_email_enabled' => (bool) $company->markdown_email_enabled,
             'stop_on_unpaid_recurring' => (bool) $company->stop_on_unpaid_recurring,
             'use_quote_terms_on_conversion' => (bool) $company->use_quote_terms_on_conversion,
+            'stock_notification' => (bool) $company->stock_notification,
+            'inventory_notification_threshold' => (int) $company->inventory_notification_threshold,
+            'track_inventory' => (bool) $company->track_inventory,
+            'enable_applying_payments' => (bool) $company->enable_applying_payments,
         ];
     }
 
diff --git a/app/Transformers/ProductTransformer.php b/app/Transformers/ProductTransformer.php
index a7ce6c3dc7..1010f00ce5 100644
--- a/app/Transformers/ProductTransformer.php
+++ b/app/Transformers/ProductTransformer.php
@@ -90,6 +90,9 @@ class ProductTransformer extends EntityTransformer
             'custom_value3' => $product->custom_value3 ?: '',
             'custom_value4' => $product->custom_value4 ?: '',
             'is_deleted' => (bool) $product->is_deleted,
+            'in_stock_quantity' => (int) $product->in_stock_quantity ?: 0,
+            'stock_notification' => (bool) $product->stock_notification,
+            'stock_notification_threshold' => (int) $product->stock_notification_threshold,
         ];
     }
 }
diff --git a/config/ninja.php b/config/ninja.php
index fc0d8346be..4605e82a3e 100644
--- a/config/ninja.php
+++ b/config/ninja.php
@@ -14,8 +14,8 @@ return [
     'require_https' => env('REQUIRE_HTTPS', true),
     'app_url' => rtrim(env('APP_URL', ''), '/'),
     'app_domain' => env('APP_DOMAIN', 'invoicing.co'),
-    'app_version' => '5.3.95',
-    'app_tag' => '5.3.95',
+    'app_version' => '5.3.96',
+    'app_tag' => '5.3.96',
     'minimum_client_version' => '5.0.16',
     'terms_version' => '1.0.1',
     'api_secret' => env('API_SECRET', ''),
diff --git a/database/migrations/2022_05_31_101504_inventory_management_schema.php b/database/migrations/2022_05_31_101504_inventory_management_schema.php
new file mode 100644
index 0000000000..783c7a8a40
--- /dev/null
+++ b/database/migrations/2022_05_31_101504_inventory_management_schema.php
@@ -0,0 +1,44 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+class InventoryManagementSchema extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+
+
+        Schema::table('companies', function (Blueprint $table) {
+            $table->boolean('enable_applying_payments')->default(0);
+            $table->boolean('track_inventory')->default(0);
+            $table->integer('inventory_notification_threshold')->default(0);
+            $table->boolean('stock_notification')->default(1);
+        });
+
+        Schema::table('products', function (Blueprint $table){
+            $table->integer('in_stock_quantity')->default(0);
+            $table->boolean('stock_notification')->default(1);
+            $table->integer('stock_notification_threshold')->default(0);
+        });
+
+
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        //
+    }
+}
+
diff --git a/resources/views/email/template/admin.blade.php b/resources/views/email/template/admin.blade.php
index 1012e51086..b8f76ee348 100644
--- a/resources/views/email/template/admin.blade.php
+++ b/resources/views/email/template/admin.blade.php
@@ -125,7 +125,7 @@
                             <img src="{{ $logo ?? '' }}" alt="" width="155" border="0" align="middle" style="display:block;" />
                             <div style="mso-hide:all;">
                             <![endif]-->
-                            <img class="logo-light" src="{{ $logo ?? '' }}" alt="" style="margin-top: 20px;  max-width: 155px; display: block; margin-left: auto; margin-right: auto;"/>
+                            <img class="logo-light" src="{{ $logo ?? '' }}" alt="" style="margin-top: 10px; max-width: 570px; display: block; margin-left: auto; margin-right: auto;"/>
                             <!--[if gte mso 9]>
                             </div>
                             <![endif]-->
diff --git a/resources/views/email/template/client.blade.php b/resources/views/email/template/client.blade.php
index 4288ead250..7265d4a141 100644
--- a/resources/views/email/template/client.blade.php
+++ b/resources/views/email/template/client.blade.php
@@ -102,7 +102,7 @@
                             <img src="{{ $logo ?? '' }}" alt="" width="400" border="0" align="middle" style="display:block;" />
                             <div style="mso-hide:all;">
                             <![endif]-->
-                            <img src="{{ $logo ?? '' }}" alt="" style="margin-top: 40px; display: block; margin-left: auto; margin-right: auto;"/>
+                            <img src="{{ $logo ?? '' }}" alt="" style="margin-top: 40px; max-width: 155px; display: block; margin-left: auto; margin-right: auto;"/>
                             <!--[if gte mso 9]>
                             </div>
                             <![endif]-->