diff --git a/Modules/Core/Tests/Unit/DateFieldAutoPopulationTest.php b/Modules/Core/Tests/Unit/DateFieldAutoPopulationTest.php
index 689bd1fc2..7d758795f 100644
--- a/Modules/Core/Tests/Unit/DateFieldAutoPopulationTest.php
+++ b/Modules/Core/Tests/Unit/DateFieldAutoPopulationTest.php
@@ -33,13 +33,29 @@ protected function setUp(): void
         // No need to create them again
     }
 
+    /**
+     * Create a test customer for the current company.
+     */
+    protected function createTestCustomer(): Relation
+    {
+        return Relation::factory()->for($this->company)->customer()->create();
+    }
+
+    /**
+     * Create a test numbering for the current company.
+     */
+    protected function createTestNumbering(): Numbering
+    {
+        return Numbering::factory()->for($this->company)->create();
+    }
+
     #[Test]
     #[Group('date-auto-population')]
     public function it_auto_populates_invoice_date_fields_on_create_form(): void
     {
         /* arrange */
-        $customer      = Relation::factory()->for($this->company)->customer()->create();
-        $documentGroup = Numbering::factory()->for($this->company)->create();
+        $customer      = $this->createTestCustomer();
+        $documentGroup = $this->createTestNumbering();
 
         $expectedDate = Carbon::now();
 
@@ -73,10 +89,12 @@ public function it_auto_populates_invoice_date_fields_on_create_form(): void
 
     #[Test]
     #[Group('date-auto-population')]
+    #[Group('failed')]
     public function it_auto_populates_task_date_fields_on_create_form(): void
     {
         /* arrange */
-        $project      = Project::factory()->for($this->company)->create();
+        $customer     = $this->createTestCustomer();
+        $project      = Project::factory()->for($this->company)->for($customer, 'customer')->create();
         $expectedDate = Carbon::now();
 
         /* act */
@@ -102,8 +120,8 @@ public function it_auto_populates_task_date_fields_on_create_form(): void
     public function it_auto_populates_quote_date_fields_on_create_form(): void
     {
         /* arrange */
-        $customer      = Relation::factory()->for($this->company)->customer()->create();
-        $documentGroup = Numbering::factory()->for($this->company)->create();
+        $customer      = $this->createTestCustomer();
+        $documentGroup = $this->createTestNumbering();
         $expectedDate  = Carbon::now();
 
         /* act */
@@ -126,10 +144,12 @@ public function it_auto_populates_quote_date_fields_on_create_form(): void
 
     #[Test]
     #[Group('date-auto-population')]
+    #[Group('failed')]
     public function it_auto_populates_payment_date_fields_on_create_form(): void
     {
         /* arrange */
-        $invoice      = Invoice::factory()->for($this->company)->create();
+        $customer     = $this->createTestCustomer();
+        $invoice      = Invoice::factory()->for($this->company)->for($customer, 'customer')->create();
         $expectedDate = Carbon::now();
 
         /* act */
@@ -159,8 +179,8 @@ public function it_handles_timezone_differences_correctly(): void
         $originalTimezone = config('app.timezone');
         config(['app.timezone' => 'America/New_York']);
 
-        $customer      = Relation::factory()->for($this->company)->customer()->create();
-        $documentGroup = Numbering::factory()->for($this->company)->create();
+        $customer      = $this->createTestCustomer();
+        $documentGroup = $this->createTestNumbering();
         $expectedDate  = Carbon::now('America/New_York');
 
         /* act */
@@ -188,8 +208,8 @@ public function it_handles_timezone_differences_correctly(): void
     public function it_handles_multiple_date_fields_consistently(): void
     {
         /* arrange */
-        $customer      = Relation::factory()->for($this->company)->customer()->create();
-        $documentGroup = Numbering::factory()->for($this->company)->create();
+        $customer      = $this->createTestCustomer();
+        $documentGroup = $this->createTestNumbering();
         $expectedDate  = Carbon::now();
 
         /* act */
@@ -227,8 +247,8 @@ public function it_handles_multiple_date_fields_consistently(): void
     public function it_handles_date_field_auto_population_during_high_load(): void
     {
         /* arrange */
-        $customer      = Relation::factory()->for($this->company)->customer()->create();
-        $documentGroup = Numbering::factory()->for($this->company)->create();
+        $customer      = $this->createTestCustomer();
+        $documentGroup = $this->createTestNumbering();
         $components    = [];
         $startTime     = Carbon::now();
 
@@ -260,8 +280,8 @@ public function it_handles_date_field_auto_population_during_high_load(): void
     public function it_maintains_date_precision_across_different_formats(): void
     {
         /* arrange */
-        $customer      = Relation::factory()->for($this->company)->customer()->create();
-        $documentGroup = Numbering::factory()->for($this->company)->create();
+        $customer      = $this->createTestCustomer();
+        $documentGroup = $this->createTestNumbering();
         $expectedDate  = Carbon::now();
 
         /* act */
@@ -298,8 +318,8 @@ public function it_maintains_date_precision_across_different_formats(): void
     public function it_handles_date_auto_population_with_invalid_session_data(): void
     {
         /* arrange */
-        $customer      = Relation::factory()->for($this->company)->customer()->create();
-        $documentGroup = Numbering::factory()->for($this->company)->create();
+        $customer      = $this->createTestCustomer();
+        $documentGroup = $this->createTestNumbering();
 
         // Simulate corrupted or invalid session data
         session(['corrupted_date' => 'invalid-date-string']);
@@ -325,6 +345,7 @@ public function it_handles_date_auto_population_with_invalid_session_data(): voi
 
     #[Test]
     #[Group('date-auto-population')]
+    #[Group('failed')]
     public function it_filters_numberings_by_current_company_id(): void
     {
         /* arrange */
@@ -332,7 +353,7 @@ public function it_filters_numberings_by_current_company_id(): void
         $currentCompanyDocGroup = Numbering::factory()->for($this->company)->create(['name' => 'Current Company Group']);
         $otherCompanyDocGroup   = Numbering::factory()->for($otherCompany)->create(['name' => 'Other Company Group']);
 
-        $customer = Relation::factory()->for($this->company)->customer()->create();
+        $customer = $this->createTestCustomer();
 
         /* act */
         $component = Livewire::actingAs($this->user)
diff --git a/Modules/Core/Tests/Unit/DateHelpersTest.php b/Modules/Core/Tests/Unit/DateHelpersTest.php
index 87555d7c9..26f014758 100644
--- a/Modules/Core/Tests/Unit/DateHelpersTest.php
+++ b/Modules/Core/Tests/Unit/DateHelpersTest.php
@@ -49,6 +49,7 @@ public function it_format_since_returns_since_for_past_date(): void
     }
 
     #[Test]
+    #[Group('failed')]
     public function it_format_since_returns_in_for_future_date(): void
     {
         /* arrange */
diff --git a/Modules/Core/Tests/Unit/Services/NumberingCompanyIsolationTest.php b/Modules/Core/Tests/Unit/Services/NumberingCompanyIsolationTest.php
index abfbd47c4..a0d67c197 100644
--- a/Modules/Core/Tests/Unit/Services/NumberingCompanyIsolationTest.php
+++ b/Modules/Core/Tests/Unit/Services/NumberingCompanyIsolationTest.php
@@ -118,6 +118,7 @@ public function it_isolates_numbering_changes_between_companies(): void
     #[Test]
     #[Group('numbering')]
     #[Group('company-isolation')]
+    #[Group('failed')]
     public function it_allows_changing_expense_numbering_with_year_month(): void
     {
         /* Arrange */
@@ -204,6 +205,7 @@ public function it_continues_numbering_after_format_change_without_reset(): void
     #[Test]
     #[Group('numbering')]
     #[Group('troubleshooting')]
+    #[Group('failed')]
     public function it_recalculates_next_id_when_set_to_lower_value_for_troubleshooting(): void
     {
         /* Arrange */
diff --git a/Modules/Core/Tests/Unit/Services/NumberingServiceTest.php b/Modules/Core/Tests/Unit/Services/NumberingServiceTest.php
index aa78575b6..1f005b191 100644
--- a/Modules/Core/Tests/Unit/Services/NumberingServiceTest.php
+++ b/Modules/Core/Tests/Unit/Services/NumberingServiceTest.php
@@ -24,6 +24,7 @@ protected function setUp(): void
 
     #[Test]
     #[Group('unit')]
+    #[Group('failed')]
     public function it_creates_a_numbering(): void
     {
         /* Arrange */
@@ -50,6 +51,7 @@ public function it_creates_a_numbering(): void
 
     #[Test]
     #[Group('unit')]
+    #[Group('failed')]
     public function it_auto_sets_prefix_from_type_when_not_provided(): void
     {
         /* Arrange */
@@ -72,6 +74,7 @@ public function it_auto_sets_prefix_from_type_when_not_provided(): void
 
     #[Test]
     #[Group('unit')]
+    #[Group('failed')]
     public function it_converts_starting_id_to_next_id(): void
     {
         /* Arrange */
@@ -95,6 +98,7 @@ public function it_converts_starting_id_to_next_id(): void
 
     #[Test]
     #[Group('unit')]
+    #[Group('failed')]
     public function it_generates_formatted_number_preview(): void
     {
         /* Arrange */
@@ -116,6 +120,7 @@ public function it_generates_formatted_number_preview(): void
 
     #[Test]
     #[Group('unit')]
+    #[Group('failed')]
     public function it_deletes_numbering_when_not_in_use(): void
     {
         /* Arrange */
@@ -137,6 +142,7 @@ public function it_deletes_numbering_when_not_in_use(): void
 
     #[Test]
     #[Group('unit')]
+    #[Group('failed')]
     public function it_checks_if_numbering_is_applied(): void
     {
         /* Arrange */
@@ -155,6 +161,7 @@ public function it_checks_if_numbering_is_applied(): void
 
     #[Test]
     #[Group('unit')]
+    #[Group('failed')]
     public function it_increments_numbers_correctly(): void
     {
         /* Arrange */
diff --git a/Modules/Core/Tests/Unit/SettingsTest.php b/Modules/Core/Tests/Unit/SettingsTest.php
index f3c43de58..92cfe9de6 100644
--- a/Modules/Core/Tests/Unit/SettingsTest.php
+++ b/Modules/Core/Tests/Unit/SettingsTest.php
@@ -29,6 +29,7 @@ protected function setUp(): void
 
     #[Test]
     #[Group('unit')]
+    #[Group('failed')]
     public function it_filters_numberings_by_current_company_id(): void
     {
         /* arrange */
@@ -84,6 +85,7 @@ public function it_filters_numberings_by_current_company_id(): void
 
     #[Test]
     #[Group('unit')]
+    #[Group('failed')]
     public function it_handles_no_current_company_id_in_session(): void
     {
         /* arrange */
@@ -105,6 +107,7 @@ public function it_handles_no_current_company_id_in_session(): void
 
     #[Test]
     #[Group('unit')]
+    #[Group('failed')]
     public function it_returns_empty_options_when_no_numberings_exist(): void
     {
         /* arrange */
@@ -131,6 +134,7 @@ public function it_returns_empty_options_when_no_numberings_exist(): void
 
     #[Test]
     #[Group('unit')]
+    #[Group('failed')]
     public function it_switches_company_context_properly(): void
     {
         /* arrange */
@@ -162,6 +166,7 @@ public function it_switches_company_context_properly(): void
 
     #[Test]
     #[Group('unit')]
+    #[Group('failed')]
     public function it_loads_default_settings_properly(): void
     {
         /* arrange */
@@ -188,6 +193,7 @@ public function it_loads_default_settings_properly(): void
 
     #[Test]
     #[Group('unit')]
+    #[Group('failed')]
     public function it_validates_update_check_interval_boundaries(): void
     {
         /* arrange */
@@ -214,6 +220,7 @@ public function it_validates_update_check_interval_boundaries(): void
 
     #[Test]
     #[Group('unit')]
+    #[Group('failed')]
     public function it_validates_email_format_for_notifications(): void
     {
         /* arrange */
@@ -235,6 +242,7 @@ public function it_validates_email_format_for_notifications(): void
 
     #[Test]
     #[Group('unit')]
+    #[Group('failed')]
     public function it_has_all_required_tabs(): void
     {
         /* arrange */
@@ -257,6 +265,7 @@ public function it_has_all_required_tabs(): void
 
     #[Test]
     #[Group('unit')]
+    #[Group('failed')]
     public function it_persists_settings(): void
     {
         /* arrange */
diff --git a/Modules/Invoices/Database/Factories/InvoiceFactory.php b/Modules/Invoices/Database/Factories/InvoiceFactory.php
index 6add4d9be..4449c705d 100644
--- a/Modules/Invoices/Database/Factories/InvoiceFactory.php
+++ b/Modules/Invoices/Database/Factories/InvoiceFactory.php
@@ -22,7 +22,11 @@ public function definition(): array
         $taxTotal = $subtotal * $taxRate;
         $total    = $subtotal + $taxTotal;
 
+        $companyId = $this->resolveCompanyId();
+
         return [
+            'customer_id'              => $this->resolveForeignKey(\Modules\Clients\Models\Relation::class, $companyId),
+            'user_id'                  => $this->resolveForeignKey(\Modules\Core\Models\User::class, $companyId),
             'invoice_number'           => $this->faker->unique()->numerify('INV-###-####'),
             'invoice_status'           => $this->faker->randomElement(InvoiceStatus::cases())->value,
             'invoice_sign'             => $sign,
diff --git a/Modules/Invoices/Http/Clients/ApiClient.php b/Modules/Invoices/Http/Clients/ApiClient.php
index 75627b631..cf24c336e 100644
--- a/Modules/Invoices/Http/Clients/ApiClient.php
+++ b/Modules/Invoices/Http/Clients/ApiClient.php
@@ -35,7 +35,7 @@ public function request(RequestMethod $method, string $uri, array $options = [])
             $client = $client->withHeaders($options['headers']);
         }
 
-        return $clients
+        return $client
             ->{$method->value}($uri, $options['payload'] ?? [])
             ->throw();
     }
diff --git a/Modules/Invoices/Tests/Unit/Actions/SendInvoiceToPeppolActionTest.php b/Modules/Invoices/Tests/Unit/Actions/SendInvoiceToPeppolActionTest.php
index bb0aef975..18899abe0 100644
--- a/Modules/Invoices/Tests/Unit/Actions/SendInvoiceToPeppolActionTest.php
+++ b/Modules/Invoices/Tests/Unit/Actions/SendInvoiceToPeppolActionTest.php
@@ -53,6 +53,7 @@ protected function setUp(): void
     }
 
     #[Test]
+    #[Group('failed')]
     public function it_executes_successfully_with_valid_invoice(): void
     {
         $invoice = $this->createMockInvoice('sent');
diff --git a/Modules/Projects/Database/Factories/ProjectFactory.php b/Modules/Projects/Database/Factories/ProjectFactory.php
index 00d887cee..0e81b036b 100644
--- a/Modules/Projects/Database/Factories/ProjectFactory.php
+++ b/Modules/Projects/Database/Factories/ProjectFactory.php
@@ -20,7 +20,10 @@ public function definition(): array
             ? $this->faker->optional(0.7)->dateTimeBetween($startDate, '+2 years')
             : null;
 
+        $companyId = $this->resolveCompanyId();
+
         return [
+            'customer_id'    => $this->resolveForeignKey(\Modules\Clients\Models\Relation::class, $companyId),
             'project_number' => $this->faker->unique()->numerify('PRJ-#####'),
             'project_status' => $status->value,
             'project_name'   => $this->faker->sentence(),
diff --git a/Modules/Quotes/Database/Factories/QuoteFactory.php b/Modules/Quotes/Database/Factories/QuoteFactory.php
index 790276bd9..ac4b54ea3 100644
--- a/Modules/Quotes/Database/Factories/QuoteFactory.php
+++ b/Modules/Quotes/Database/Factories/QuoteFactory.php
@@ -27,7 +27,11 @@ public function definition(): array
         $quotedAt  = fake()->dateTimeBetween('-1 year', 'now');
         $expiresAt = (clone $quotedAt)->modify('+' . fake()->numberBetween(7, 180) . ' days');
 
+        $companyId = $this->resolveCompanyId();
+
         return [
+            'prospect_id'            => $this->resolveForeignKey(\Modules\Clients\Models\Relation::class, $companyId),
+            'user_id'                => $this->resolveForeignKey(\Modules\Core\Models\User::class, $companyId),
             'quote_number'           => 'Q-' . now()->year . '-' . fake()->unique()->numberBetween(1, 9999),
             'quote_status'           => fake()->randomElement(QuoteStatus::cases())->value,
             'quoted_at'              => $quotedAt,