diff --git a/app/Console/Commands/BillReminder.php b/app/Console/Commands/BillReminder.php
index e06564896..02ddda567 100644
--- a/app/Console/Commands/BillReminder.php
+++ b/app/Console/Commands/BillReminder.php
@@ -78,5 +78,4 @@ class BillReminder extends Command
             }
         }
     }
-
 }
diff --git a/app/Console/Commands/InvoiceReminder.php b/app/Console/Commands/InvoiceReminder.php
index e3fcb75d9..f24fe0dc9 100644
--- a/app/Console/Commands/InvoiceReminder.php
+++ b/app/Console/Commands/InvoiceReminder.php
@@ -69,7 +69,7 @@ class InvoiceReminder extends Command
 
         foreach ($invoices as $invoice) {
             // Notify the customer
-            if ($invoice->customer) {
+            if ($invoice->customer && !empty($invoice->customer_email)) {
                 $invoice->customer->notify(new Notification($invoice));
             }
 
@@ -83,5 +83,4 @@ class InvoiceReminder extends Command
             }
         }
     }
-
 }
diff --git a/app/Http/Controllers/Auth/Users.php b/app/Http/Controllers/Auth/Users.php
index 57e75bec8..75933b591 100644
--- a/app/Http/Controllers/Auth/Users.php
+++ b/app/Http/Controllers/Auth/Users.php
@@ -243,6 +243,7 @@ class Users extends Controller
     public function autocomplete(ARequest $request)
     {
         $user = false;
+        $data = false;
 
         $column = $request['column'];
         $value = $request['value'];
@@ -250,7 +251,7 @@ class Users extends Controller
         if (!empty($column) && !empty($value)) {
             switch ($column) {
                 case 'id':
-                    $user = User::find();
+                    $user = User::find((int) $value);
                     break;
                 case 'email':
                     $user = User::where('email', $value)->first();
@@ -258,12 +259,16 @@ class Users extends Controller
                 default:
                     $user = User::where($column, $value)->first();
             }
+
+            $data = $user;
+        } elseif (!empty($column) && empty($value)) {
+            $data = trans('validation.required', ['attribute' => $column]);
         }
 
         return response()->json([
-            'errors'  => ($user) ? false: true,
-            'success' => ($user) ? true: false,
-            'data'    => $user
+            'errors'  => ($user) ? false : true,
+            'success' => ($user) ? true : false,
+            'data'    => $data
         ]);
     }
 }
diff --git a/app/Http/Controllers/Customers/Profile.php b/app/Http/Controllers/Customers/Profile.php
new file mode 100644
index 000000000..b75ad6d17
--- /dev/null
+++ b/app/Http/Controllers/Customers/Profile.php
@@ -0,0 +1,92 @@
+<?php
+
+namespace App\Http\Controllers\Customers;
+
+use App\Http\Controllers\Controller;
+use App\Http\Requests\Customer\Profile as Request;
+use App\Models\Auth\User;
+
+class Profile extends Controller
+{
+
+    public function index()
+    {
+        return $this->edit();
+    }
+
+    public function show()
+    {
+        return $this->edit();
+    }
+
+    /**
+     * Show the form for editing the specified resource.
+     *
+     * @return Response
+     */
+    public function edit()
+    {
+        $user = auth()->user();
+
+        return view('customers.profile.edit', compact('user'));
+    }
+
+    /**
+     * Update the specified resource in storage.
+     *
+     * @param  Request  $request
+     *
+     * @return Response
+     */
+    public function update(Request $request)
+    {
+        $user = auth()->user();
+
+        // Upload picture
+        $picture = $request->file('picture');
+        if ($picture && $picture->isValid()) {
+            $request['picture'] = $picture->store('users');
+        }
+
+        // Do not reset password if not entered/changed
+        if (empty($request['password'])) {
+            unset($request['password']);
+            unset($request['password_confirmation']);
+        }
+
+        // Update user
+        $user->update($request->input());
+
+        // Update customer
+        $user->customer->update($request->input());
+
+        $message = trans('messages.success.updated', ['type' => trans('auth.profile')]);
+
+        flash($message)->success();
+
+        return redirect('customers/profile/edit');
+    }
+
+    /**
+     * Mark overdue invoices notifications are read and redirect to invoices page.
+     *
+     * @return Response
+     */
+    public function readOverdueInvoices()
+    {
+        $user = auth()->user();
+
+        // Mark invoice notifications as read
+        foreach ($user->unreadNotifications as $notification) {
+            // Not an invoice notification
+            if ($notification->getAttribute('type') != 'App\Notifications\Income\Invoice') {
+                continue;
+            }
+
+            $notification->markAsRead();
+        }
+
+        // Redirect to invoices
+        return redirect('customers/invoices');
+    }
+}
diff --git a/app/Http/Controllers/Expenses/Vendors.php b/app/Http/Controllers/Expenses/Vendors.php
index 6b06d28be..90c3f8377 100644
--- a/app/Http/Controllers/Expenses/Vendors.php
+++ b/app/Http/Controllers/Expenses/Vendors.php
@@ -44,6 +44,10 @@ class Vendors extends Controller
      */
     public function store(Request $request)
     {
+        if (empty($request['email'])) {
+            $request['email'] = '';
+        }
+
         Vendor::create($request->all());
 
         $message = trans('messages.success.added', ['type' => trans_choice('general.vendors', 1)]);
@@ -120,6 +124,10 @@ class Vendors extends Controller
      */
     public function update(Vendor $vendor, Request $request)
     {
+        if (empty($request['email'])) {
+            $request['email'] = '';
+        }
+
         $vendor->update($request->all());
 
         $message = trans('messages.success.updated', ['type' => trans_choice('general.vendors', 1)]);
@@ -169,6 +177,10 @@ class Vendors extends Controller
 
     public function vendor(Request $request)
     {
+        if (empty($request['email'])) {
+            $request['email'] = '';
+        }
+
         $vendor = Vendor::create($request->all());
 
         return response()->json($vendor);
diff --git a/app/Http/Controllers/Incomes/Customers.php b/app/Http/Controllers/Incomes/Customers.php
index 17d9f1abd..ebf317aef 100644
--- a/app/Http/Controllers/Incomes/Customers.php
+++ b/app/Http/Controllers/Incomes/Customers.php
@@ -46,6 +46,10 @@ class Customers extends Controller
     public function store(Request $request)
     {
         if (empty($request->input('create_user'))) {
+            if (empty($request['email'])) {
+                $request['email'] = '';
+            }
+
             Customer::create($request->all());
         } else {
             // Check if user exist
@@ -112,6 +116,11 @@ class Customers extends Controller
 
         foreach ($rows as $row) {
             $data = $row->toArray();
+
+            if (empty($data['email'])) {
+                $data['email'] = '';
+            }
+
             $data['company_id'] = session('company_id');
 
             Customer::create($data);
@@ -149,6 +158,10 @@ class Customers extends Controller
     public function update(Customer $customer, Request $request)
     {
         if (empty($request->input('create_user'))) {
+            if (empty($request['email'])) {
+                $request['email'] = '';
+            }
+
             $customer->update($request->all());
         } else {
             // Check if user exist
@@ -220,6 +233,10 @@ class Customers extends Controller
 
     public function customer(Request $request)
     {
+        if (empty($request['email'])) {
+            $request['email'] = '';
+        }
+
         $customer = Customer::create($request->all());
 
         return response()->json($customer);
diff --git a/app/Http/Controllers/Incomes/Invoices.php b/app/Http/Controllers/Incomes/Invoices.php
index 4535a2c17..ff44addec 100644
--- a/app/Http/Controllers/Incomes/Invoices.php
+++ b/app/Http/Controllers/Incomes/Invoices.php
@@ -489,6 +489,10 @@ class Invoices extends Controller
      */
     public function emailInvoice(Invoice $invoice)
     {
+        if (empty($invoice->customer_email)) {
+            return redirect()->back();
+        }
+
         $invoice = $this->prepareInvoice($invoice);
 
         $logo = $this->getLogo();
@@ -584,18 +588,23 @@ class Invoices extends Controller
 
         $amount = $invoice->amount - $paid;
 
-        $request = new PaymentRequest();
+        if (!empty($amount)) {
+            $request = new PaymentRequest();
 
-        $request['company_id'] = $invoice->company_id;
-        $request['invoice_id'] = $invoice->id;
-        $request['account_id'] = setting('general.default_account');
-        $request['payment_method'] = setting('general.default_payment_method', 'offlinepayment.cash.1');
-        $request['currency_code'] = $invoice->currency_code;
-        $request['amount'] = $amount;
-        $request['paid_at'] = Date::now();
-        $request['_token'] = csrf_token();
+            $request['company_id'] = $invoice->company_id;
+            $request['invoice_id'] = $invoice->id;
+            $request['account_id'] = setting('general.default_account');
+            $request['payment_method'] = setting('general.default_payment_method', 'offlinepayment.cash.1');
+            $request['currency_code'] = $invoice->currency_code;
+            $request['amount'] = $amount;
+            $request['paid_at'] = Date::now();
+            $request['_token'] = csrf_token();
 
-        $this->payment($request);
+            $this->payment($request);
+        } else {
+            $invoice->invoice_status_code = 'paid';
+            $invoice->save();
+        }
 
         return redirect()->back();
     }
@@ -689,7 +698,9 @@ class Invoices extends Controller
     {
         $invoice = Invoice::find($payment->invoice_id);
 
-        if ($invoice->payments()->count() > 1) {
+        if ($invoice->payments()->paid() == $invoice->amount) {
+            $invoice->invoice_status_code = 'paid';
+        } elseif ($invoice->payments()->count() > 1) {
             $invoice->invoice_status_code = 'partial';
         } else {
             $invoice->invoice_status_code = 'draft';
diff --git a/app/Http/Requests/Customer/Profile.php b/app/Http/Requests/Customer/Profile.php
new file mode 100644
index 000000000..45b729745
--- /dev/null
+++ b/app/Http/Requests/Customer/Profile.php
@@ -0,0 +1,35 @@
+<?php
+
+namespace App\Http\Requests\Customer;
+
+use Illuminate\Foundation\Http\FormRequest;
+
+class Profile extends FormRequest
+{
+    /**
+     * Determine if the user is authorized to make this request.
+     *
+     * @return bool
+     */
+    public function authorize()
+    {
+        return true;
+    }
+
+    /**
+     * Get the validation rules that apply to the request.
+     *
+     * @return array
+     */
+    public function rules()
+    {
+        $id = auth()->user()->getAttribute('id');
+
+        return [
+            'name' => 'required|string',
+            'email' => 'required|email|unique:users,email,' . $id . ',id,deleted_at,NULL',
+            'password' => 'confirmed',
+            'picture' => 'mimes:' . setting('general.file_types') . '|between:0,' . setting('general.file_size') * 1024,
+        ];
+    }
+}
diff --git a/app/Http/Requests/Expense/Vendor.php b/app/Http/Requests/Expense/Vendor.php
index b40613165..9f5e76629 100644
--- a/app/Http/Requests/Expense/Vendor.php
+++ b/app/Http/Requests/Expense/Vendor.php
@@ -23,6 +23,11 @@ class Vendor extends Request
      */
     public function rules()
     {
+        $email = '';
+
+        // Get company id
+        $company_id = $this->request->get('company_id');
+
         // Check if store or update
         if ($this->getMethod() == 'PATCH') {
             $id = $this->vendor->getAttribute('id');
@@ -30,12 +35,13 @@ class Vendor extends Request
             $id = null;
         }
 
-        // Get company id
-        $company_id = $this->request->get('company_id');
+        if (!empty($this->request->get('email'))) {
+            $email = 'email|unique:vendors,NULL,' . $id . ',id,company_id,' . $company_id . ',deleted_at,NULL';
+        }
 
         return [
             'name' => 'required|string',
-            'email' => 'required|email|unique:vendors,NULL,' . $id . ',id,company_id,' . $company_id . ',deleted_at,NULL',
+            'email' => $email,
             'currency_code' => 'required|string',
         ];
     }
diff --git a/app/Http/Requests/Income/Customer.php b/app/Http/Requests/Income/Customer.php
index 861524f9c..4d2e97622 100644
--- a/app/Http/Requests/Income/Customer.php
+++ b/app/Http/Requests/Income/Customer.php
@@ -23,8 +23,12 @@ class Customer extends Request
      */
     public function rules()
     {
+        $email = '';
         $required = '';
 
+        // Get company id
+        $company_id = $this->request->get('company_id');
+
         // Check if store or update
         if ($this->getMethod() == 'PATCH') {
             $id = $this->customer->getAttribute('id');
@@ -36,12 +40,13 @@ class Customer extends Request
             $required = 'required|';
         }
 
-        // Get company id
-        $company_id = $this->request->get('company_id');
+        if (!empty($this->request->get('email'))) {
+            $email = 'email|unique:customers,NULL,' . $id . ',id,company_id,' . $company_id . ',deleted_at,NULL';
+        }
 
         return [
             'name' => 'required|string',
-            'email' => 'required|email|unique:customers,NULL,' . $id . ',id,company_id,' . $company_id . ',deleted_at,NULL',
+            'email' => $email,
             'currency_code' => 'required|string',
             'password' => $required . 'confirmed',
         ];
diff --git a/app/Traits/Currencies.php b/app/Traits/Currencies.php
index 45a3f05e7..22a54ab17 100644
--- a/app/Traits/Currencies.php
+++ b/app/Traits/Currencies.php
@@ -13,9 +13,9 @@ trait Currencies
         $default = new Currency(setting('general.default_currency', 'USD'));
 
         if ($format) {
-            $money = Money::$code($amount, true)->convert($default, $rate)->format();
+            $money = Money::$code($amount, true)->convert($default, (double) $rate)->format();
         } else {
-            $money = Money::$code($amount)->convert($default, $rate)->getAmount();
+            $money = Money::$code($amount)->convert($default, (double) $rate)->getAmount();
         }
 
         return $money;
@@ -28,9 +28,9 @@ trait Currencies
         $code = new Currency($code);
 
         if ($format) {
-            $money = Money::$default($amount, true)->convert($code, $rate)->format();
+            $money = Money::$default($amount, true)->convert($code, (double) $rate)->format();
         } else {
-            $money = Money::$default($amount)->convert($code, $rate)->getAmount();
+            $money = Money::$default($amount)->convert($code, (double) $rate)->getAmount();
         }
 
         return $money;
@@ -41,9 +41,9 @@ trait Currencies
         $code = new Currency($code);
 
         if ($format) {
-            $money = Money::$default($amount, true)->convert($code, $rate)->format();
+            $money = Money::$default($amount, true)->convert($code, (double) $rate)->format();
         } else {
-            $money = Money::$default($amount)->convert($code, $rate)->getAmount();
+            $money = Money::$default($amount)->convert($code, (double) $rate)->getAmount();
         }
 
         return $money;
diff --git a/public/css/app.css b/public/css/app.css
index 78f922c22..cb55b99af 100644
--- a/public/css/app.css
+++ b/public/css/app.css
@@ -498,6 +498,18 @@ ul.add-new.nav.navbar-nav.pull-left {
         background-color: #ffffff;
     }
 }
+
+.text-disabled {
+    opacity: 0.4;
+}
+
+.tooltip > .tooltip-inner {
+    background-color: #6da252;
+}
+
+.tooltip.right .tooltip-arrow {
+    border-right-color: #6da252 !important;
+}
 /*
 .content-wrapper {
     overflow: inherit;
diff --git a/resources/lang/en-GB/invoices.php b/resources/lang/en-GB/invoices.php
index 7f52a170f..d1a62106d 100644
--- a/resources/lang/en-GB/invoices.php
+++ b/resources/lang/en-GB/invoices.php
@@ -37,8 +37,9 @@ return [
     ],
 
     'messages' => [
-        'email_sent'    => 'Invoice email has been sent successfully!',
-        'marked_sent'   => 'Invoice marked as sent successfully!',
+        'email_sent'     => 'Invoice email has been sent successfully!',
+        'marked_sent'    => 'Invoice marked as sent successfully!',
+        'email_required' => 'No email address for this customer!',
     ],
 
     'notification' => [
diff --git a/resources/views/customers/profile/edit.blade.php b/resources/views/customers/profile/edit.blade.php
new file mode 100644
index 000000000..aaf544b35
--- /dev/null
+++ b/resources/views/customers/profile/edit.blade.php
@@ -0,0 +1,69 @@
+@extends('layouts.customer')
+
+@section('title', trans('general.title.edit', ['type' => trans('auth.profile')]))
+
+@section('content')
+    <!-- Default box -->
+    <div class="box box-success">
+        {!! Form::model($user, [
+            'method' => 'PATCH',
+            'files' => true,
+            'url' => ['customers/profile/update'],
+            'role' => 'form'
+        ]) !!}
+
+        <div class="box-body">
+            {{ Form::textGroup('name', trans('general.name'), 'id-card-o') }}
+
+            {{ Form::emailGroup('email', trans('general.email'), 'envelope') }}
+
+            {{ Form::textGroup('tax_number', trans('general.tax_number'), 'percent', []) }}
+
+            {{ Form::textGroup('phone', trans('general.phone'), 'phone', []) }}
+
+            {{ Form::textareaGroup('address', trans('general.address')) }}
+
+            {{ Form::passwordGroup('password', trans('auth.password.current'), 'key', []) }}
+
+            {{ Form::passwordGroup('password_confirmation', trans('auth.password.current_confirm'), 'key', []) }}
+
+            {{ Form::selectGroup('locale', trans_choice('general.languages', 1), 'flag', language()->allowed()) }}
+
+            {{ Form::fileGroup('picture',  trans_choice('general.pictures', 1)) }}
+        </div>
+        <!-- /.box-body -->
+
+        @permission(['update-customers-profile'])
+        <div class="box-footer">
+            {{ Form::saveButtons('customers') }}
+        </div>
+        <!-- /.box-footer -->
+        @endpermission
+
+        {!! Form::close() !!}
+    </div>
+@endsection
+
+@push('js')
+    <script src="{{ asset('public/js/bootstrap-fancyfile.js') }}"></script>
+@endpush
+
+@push('css')
+    <link rel="stylesheet" href="{{ asset('public/css/bootstrap-fancyfile.css') }}">
+@endpush
+
+@push('scripts')
+    <script type="text/javascript">
+        $(document).ready(function(){
+            $("#locale").select2({
+                placeholder: "{{ trans('general.form.select.field', ['field' => trans_choice('general.languages', 1)]) }}"
+            });
+
+            $('#picture').fancyfile({
+                text  : '{{ trans('general.form.select.file') }}',
+                style : 'btn-default',
+                placeholder : '<?php echo $user->picture; ?>'
+            });
+        });
+    </script>
+@endpush
diff --git a/resources/views/expenses/bills/create.blade.php b/resources/views/expenses/bills/create.blade.php
index 8b897a4bb..c46071d5f 100644
--- a/resources/views/expenses/bills/create.blade.php
+++ b/resources/views/expenses/bills/create.blade.php
@@ -290,7 +290,7 @@
             modal += '                          <input class="form-control" placeholder="{{ trans('general.name') }}" required="required" name="name" type="text" id="name">';
             modal += '                      </div>';
             modal += '                  </div>';
-            modal += '                  <div class="form-group col-md-6 required">';
+            modal += '                  <div class="form-group col-md-6">';
             modal += '                      <label for="email" class="control-label">{{ trans('general.email') }}</label>';
             modal += '                      <div class="input-group">';
             modal += '                          <div class="input-group-addon"><i class="fa fa-envelope"></i></div>';
diff --git a/resources/views/expenses/bills/show.blade.php b/resources/views/expenses/bills/show.blade.php
index 97dd804b2..a32104653 100644
--- a/resources/views/expenses/bills/show.blade.php
+++ b/resources/views/expenses/bills/show.blade.php
@@ -389,7 +389,7 @@
                 html += '               <h4 class="modal-title" id="emailModalLabel">Overflowing text</h4>';
                 html += '           </div>';
                 html += '           <div class="modal-body">';
-                html += '               N/A';
+                html += '               {{ trans('general.na') }}';
                 html += '           </div>';
                 html += '           <div class="modal-footer">';
                 html += '               <button type="button" class="btn btn-default" data-dismiss="modal">{{ trans('general.cancel') }}</button>';
diff --git a/resources/views/expenses/payments/index.blade.php b/resources/views/expenses/payments/index.blade.php
index 7bb490fef..b2d6598fe 100644
--- a/resources/views/expenses/payments/index.blade.php
+++ b/resources/views/expenses/payments/index.blade.php
@@ -47,7 +47,7 @@
                     <tr>
                         <td><a href="{{ url('expenses/payments/' . $item->id . '/edit') }}">{{ Date::parse($item->paid_at)->format($date_format) }}</a></td>
                         <td>@money($item->amount, $item->currency_code, true)</td>
-                        <td class="hidden-xs">{{ !empty($item->vendor->name) ? $item->vendor->name : 'N/A'}}</td>
+                        <td class="hidden-xs">{{ !empty($item->vendor->name) ? $item->vendor->name : trans('general.na') }}</td>
                         <td class="hidden-xs">{{ $item->category->name }}</td>
                         <td class="hidden-xs">{{ $item->account->name }}</td>
                         <td class="text-center">
diff --git a/resources/views/expenses/vendors/create.blade.php b/resources/views/expenses/vendors/create.blade.php
index f6d8c65fc..fd0f12fb2 100644
--- a/resources/views/expenses/vendors/create.blade.php
+++ b/resources/views/expenses/vendors/create.blade.php
@@ -10,7 +10,7 @@
         <div class="box-body">
             {{ Form::textGroup('name', trans('general.name'), 'id-card-o') }}
 
-            {{ Form::textGroup('email', trans('general.email'), 'envelope') }}
+            {{ Form::textGroup('email', trans('general.email'), 'envelope', []) }}
 
             {{ Form::textGroup('tax_number', trans('general.tax_number'), 'percent', []) }}
 
diff --git a/resources/views/expenses/vendors/edit.blade.php b/resources/views/expenses/vendors/edit.blade.php
index 32c7ca5ab..082969e78 100644
--- a/resources/views/expenses/vendors/edit.blade.php
+++ b/resources/views/expenses/vendors/edit.blade.php
@@ -14,7 +14,7 @@
         <div class="box-body">
             {{ Form::textGroup('name', trans('general.name'), 'id-card-o') }}
 
-            {{ Form::textGroup('email', trans('general.email'), 'envelope') }}
+            {{ Form::textGroup('email', trans('general.email'), 'envelope', []) }}
 
             {{ Form::textGroup('tax_number', trans('general.tax_number'), 'percent', []) }}
 
diff --git a/resources/views/expenses/vendors/index.blade.php b/resources/views/expenses/vendors/index.blade.php
index ffb3bc589..0a66e11ac 100644
--- a/resources/views/expenses/vendors/index.blade.php
+++ b/resources/views/expenses/vendors/index.blade.php
@@ -43,7 +43,7 @@
                 @foreach($vendors as $item)
                     <tr>
                         <td><a href="{{ url('expenses/vendors/' . $item->id . '/edit') }}">{{ $item->name }}</a></td>
-                        <td class="hidden-xs">{{ $item->email }}</td>
+                        <td class="hidden-xs">{{ !empty($item->email) ? $item->email : trans('general.na') }}</td>
                         <td>{{ $item->phone }}</td>
                         <td class="hidden-xs">
                             @if ($item->enabled)
diff --git a/resources/views/incomes/customers/create.blade.php b/resources/views/incomes/customers/create.blade.php
index e0cd1a24d..264da5a3f 100644
--- a/resources/views/incomes/customers/create.blade.php
+++ b/resources/views/incomes/customers/create.blade.php
@@ -10,7 +10,7 @@
         <div class="box-body">
             {{ Form::textGroup('name', trans('general.name'), 'id-card-o') }}
 
-            {{ Form::textGroup('email', trans('general.email'), 'envelope') }}
+            {{ Form::textGroup('email', trans('general.email'), 'envelope', []) }}
 
             {{ Form::textGroup('tax_number', trans('general.tax_number'), 'percent', []) }}
 
@@ -68,7 +68,7 @@
             $('#create_user').iCheck({
                 checkboxClass: 'icheckbox_square-green',
                 radioClass: 'iradio_square-green',
-                increaseArea: '20%' // optional
+                increaseArea: '20%'
             });
 
             $('#create_user').on('ifClicked', function (event) {
@@ -76,13 +76,29 @@
 
                 if ($(this).prop('checked')) {
                     $('.col-md-6.password').addClass('hidden');
+
+                    $('input[name="email"]').parent().parent().removeClass('has-error');
+                    $('input[name="email"]').parent().parent().find('.help-block').remove();
                 } else {
+                    var email = $('input[name="email"]').val();
+
+                    if (!email) {
+                        $('input[name="email"]').parent().parent().addClass('has-error');
+                        $('input[name="email"]').parent().after('<p class="help-block">{{ trans('validation.required', ['attribute' => 'email']) }}</p>');
+                        $('input[name="email"]').focus();
+
+                        return false;
+                    }
+
                     $.ajax({
                         url: '{{ url("auth/users/autocomplete") }}',
                         type: 'GET',
                         dataType: 'JSON',
-                        data: {column: 'email', value: $('input[name="email"]').val()},
+                        data: {column: 'email', value: email},
                         beforeSend: function() {
+                            $('input[name="email"]').parent().parent().removeClass('has-error');
+                            $('input[name="email"]').parent().parent().find('.help-block').remove();
+
                             $('.box-footer .btn').attr('disabled', true);
                         },
                         complete: function() {
@@ -90,6 +106,14 @@
                         },
                         success: function(json) {
                             if (json['errors']) {
+                                if (json['data']) {
+                                    $('input[name="email"]').parent().parent().addClass('has-error');
+                                    $('input[name="email"]').parent().after('<p class="help-block">' + json['data'] + '</p>');
+                                    $('input[name="email"]').focus();
+
+                                    return false;
+                                }
+
                                 $('.col-md-6.password').removeClass('hidden');
                             }
 
diff --git a/resources/views/incomes/customers/edit.blade.php b/resources/views/incomes/customers/edit.blade.php
index 739af59f8..8d7ed7429 100644
--- a/resources/views/incomes/customers/edit.blade.php
+++ b/resources/views/incomes/customers/edit.blade.php
@@ -14,7 +14,7 @@
     <div class="box-body">
         {{ Form::textGroup('name', trans('general.name'), 'id-card-o') }}
 
-        {{ Form::textGroup('email', trans('general.email'), 'envelope') }}
+        {{ Form::textGroup('email', trans('general.email'), 'envelope', []) }}
 
         {{ Form::textGroup('tax_number', trans('general.tax_number'), 'percent', []) }}
 
diff --git a/resources/views/incomes/customers/index.blade.php b/resources/views/incomes/customers/index.blade.php
index 2edd47f10..2d93a546a 100644
--- a/resources/views/incomes/customers/index.blade.php
+++ b/resources/views/incomes/customers/index.blade.php
@@ -43,7 +43,7 @@
                 @foreach($customers as $item)
                     <tr>
                         <td><a href="{{ url('incomes/customers/' . $item->id . '/edit') }}">{{ $item->name }}</a></td>
-                        <td class="hidden-xs">{{ $item->email }}</td>
+                        <td class="hidden-xs">{{ !empty($item->email) ? $item->email : trans('general.na') }}</td>
                         <td>{{ $item->phone }}</td>
                         <td class="hidden-xs">
                             @if ($item->enabled)
diff --git a/resources/views/incomes/invoices/create.blade.php b/resources/views/incomes/invoices/create.blade.php
index fcfdccb58..cff4e31aa 100644
--- a/resources/views/incomes/invoices/create.blade.php
+++ b/resources/views/incomes/invoices/create.blade.php
@@ -291,7 +291,7 @@
             modal += '                          <input class="form-control" placeholder="{{ trans('general.name') }}" required="required" name="name" type="text" id="name">';
             modal += '                      </div>';
             modal += '                  </div>';
-            modal += '                  <div class="form-group col-md-6 required">';
+            modal += '                  <div class="form-group col-md-6">';
             modal += '                      <label for="email" class="control-label">{{ trans('general.email') }}</label>';
             modal += '                      <div class="input-group">';
             modal += '                          <div class="input-group-addon"><i class="fa fa-envelope"></i></div>';
diff --git a/resources/views/incomes/invoices/show.blade.php b/resources/views/incomes/invoices/show.blade.php
index cb3516688..bdeb10362 100644
--- a/resources/views/incomes/invoices/show.blade.php
+++ b/resources/views/incomes/invoices/show.blade.php
@@ -157,13 +157,19 @@
                             @permission('update-incomes-invoices')
                             <li><a href="{{ url('incomes/invoices/' . $invoice->id . '/pay') }}">{{ trans('invoices.mark_paid') }}</a></li>
                             @endpermission
+                            @if(empty($invoice->payments()->count()) || (!empty($invoice->payments()->count()) && $invoice->payments()->paid() != $invoice->amount))
                             <li><a href="#" id="button-payment">{{ trans('invoices.add_payment') }}</a></li>
+                            @endif
                             <li class="divider"></li>
                             @endif
                             @permission('update-incomes-invoices')
                             <li><a href="{{ url('incomes/invoices/' . $invoice->id . '/sent') }}">{{ trans('invoices.mark_sent') }}</a></li>
                             @endpermission
+                            @if($invoice->customer_email)
                             <li><a href="{{ url('incomes/invoices/' . $invoice->id . '/email') }}">{{ trans('invoices.send_mail') }}</a></li>
+                            @else
+                            <li><a href="javascript:void(0);" class="green-tooltip disabled" data-toggle="tooltip" data-placement="right" title="{{ trans('invoices.messages.email_required') }}"><span class="text-disabled">{{ trans('invoices.send_mail') }}</span></a></li>
+                            @endif
                             <li class="divider"></li>
                             <li><a href="{{ url('incomes/invoices/' . $invoice->id . '/pdf') }}">{{ trans('invoices.download_pdf') }}</a></li>
                             <li class="divider"></li>
@@ -394,7 +400,7 @@
                 html += '               <h4 class="modal-title" id="emailModalLabel">Overflowing text</h4>';
                 html += '           </div>';
                 html += '           <div class="modal-body">';
-                html += '              N/A';
+                html += '              {{ trans('general.na') }}';
                 html += '           </div>';
                 html += '           <div class="modal-footer">';
                 html += '               <button type="button" class="btn btn-default" data-dismiss="modal">{{ trans('general.cancel') }}</button>';
diff --git a/resources/views/incomes/revenues/index.blade.php b/resources/views/incomes/revenues/index.blade.php
index 11b6b9b75..8c79d2ece 100644
--- a/resources/views/incomes/revenues/index.blade.php
+++ b/resources/views/incomes/revenues/index.blade.php
@@ -47,7 +47,7 @@
                     <tr>
                         <td><a href="{{ url('incomes/revenues/' . $item->id . '/edit') }}">{{ Date::parse($item->paid_at)->format($date_format) }}</a></td>
                         <td>@money($item->amount, $item->currency_code, true)</td>
-                        <td class="hidden-xs">{{ !empty($item->customer->name) ? $item->customer->name : 'N/A'}}</td>
+                        <td class="hidden-xs">{{ !empty($item->customer->name) ? $item->customer->name : trans('general.na') }}</td>
                         <td class="hidden-xs">{{ $item->category->name }}</td>
                         <td class="hidden-xs">{{ $item->account->name }}</td>
                         <td class="text-center">
diff --git a/resources/views/partials/customer/header.blade.php b/resources/views/partials/customer/header.blade.php
index 8a6d3ef01..27d5c3437 100644
--- a/resources/views/partials/customer/header.blade.php
+++ b/resources/views/partials/customer/header.blade.php
@@ -31,17 +31,10 @@
                         <li>
                             <!-- inner menu: contains the actual data -->
                             <ul class="menu">
-                                @if (count($bills))
-                                <li>
-                                    <a href="{{ url('auth/users/' . $user->id . '/read-bills') }}">
-                                        <i class="fa fa-shopping-cart text-red"></i> {{ trans_choice('header.notifications.upcoming_bills', count($bills), ['count' => count($bills)]) }}
-                                    </a>
-                                </li>
-                                @endif
                                 @if (count($invoices))
                                 <li>
-                                    <a href="{{ url('auth/users/' . $user->id . '/read-invoices') }}">
-                                        <i class="fa fa-money text-green"></i> {{ trans_choice('header.notifications.overdue_invoices', count($invoices), ['count' => count($invoices)]) }}
+                                    <a href="{{ url('customers/profile/read-invoices') }}">
+                                        <i class="fa fa-money text-red"></i> {{ trans_choice('header.notifications.overdue_invoices', count($invoices), ['count' => count($invoices)]) }}
                                     </a>
                                 </li>
                                 @endif
@@ -92,9 +85,9 @@
                         </li>
                         <!-- Menu Footer-->
                         <li class="user-footer">
-                            @permission('read-customers-profile')
+                            @permission('update-customers-profile')
                             <div class="pull-left">
-                                <a href="{{ url('auth/users/' . $user->id . '/edit') }}" class="btn btn-default btn-flat">{{ trans('auth.profile') }}</a>
+                                <a href="{{ url('customers/profile/edit') }}" class="btn btn-default btn-flat">{{ trans('auth.profile') }}</a>
                             </div>
                             @endpermission
                             <div class="pull-right">
diff --git a/routes/web.php b/routes/web.php
index 70dd4e2dd..251ee0d1f 100644
--- a/routes/web.php
+++ b/routes/web.php
@@ -151,6 +151,8 @@ Route::group(['middleware' => 'language'], function () {
                 Route::resource('invoices', 'Customers\Invoices');
                 Route::resource('payments', 'Customers\Payments');
                 Route::resource('transactions', 'Customers\Transactions');
+                Route::get('profile/read-invoices', 'Customers\Profile@readOverdueInvoices');
+                Route::resource('profile', 'Customers\Profile');
 
                 Route::get('logout', 'Auth\Login@destroy')->name('customer_logout');
             });