diff --git a/src/Core/src/App/src/Entity/AbstractEntity.php b/src/Core/src/App/src/Entity/AbstractEntity.php
index 82e1dea..f2848a5 100644
--- a/src/Core/src/App/src/Entity/AbstractEntity.php
+++ b/src/Core/src/App/src/Entity/AbstractEntity.php
@@ -30,6 +30,14 @@ public function getUuid(): UuidInterface
         return $this->uuid;
     }
 
+    /**
+     * Override this method in soft-deletable entities
+     */
+    public function isDeleted(): bool
+    {
+        return false;
+    }
+
     public function exchangeArray(array $array): void
     {
         foreach ($array as $property => $values) {
diff --git a/src/Core/src/App/src/Entity/EntityInterface.php b/src/Core/src/App/src/Entity/EntityInterface.php
index 418e0fd..80ce609 100644
--- a/src/Core/src/App/src/Entity/EntityInterface.php
+++ b/src/Core/src/App/src/Entity/EntityInterface.php
@@ -4,6 +4,20 @@
 
 namespace Core\App\Entity;
 
+use DateTimeImmutable;
+use Ramsey\Uuid\UuidInterface;
+
 interface EntityInterface
 {
+    public function getUuid(): UuidInterface;
+
+    public function getCreated(): ?DateTimeImmutable;
+
+    public function getCreatedFormatted(string $dateFormat = 'Y-m-d H:i:s'): string;
+
+    public function getUpdated(): ?DateTimeImmutable;
+
+    public function getUpdatedFormatted(string $dateFormat = 'Y-m-d H:i:s'): ?string;
+
+    public function isDeleted(): bool;
 }
diff --git a/src/Core/src/App/src/Entity/RoleInterface.php b/src/Core/src/App/src/Entity/RoleInterface.php
index b1893e3..0c2b80b 100644
--- a/src/Core/src/App/src/Entity/RoleInterface.php
+++ b/src/Core/src/App/src/Entity/RoleInterface.php
@@ -5,12 +5,9 @@
 namespace Core\App\Entity;
 
 use BackedEnum;
-use Ramsey\Uuid\UuidInterface;
 
-interface RoleInterface
+interface RoleInterface extends EntityInterface
 {
-    public function getUuid(): UuidInterface;
-
     public function getName(): ?BackedEnum;
 
     public function setName(BackedEnum $name): RoleInterface;
diff --git a/src/Core/src/App/src/Message.php b/src/Core/src/App/src/Message.php
index c65460d..f3d7a8d 100644
--- a/src/Core/src/App/src/Message.php
+++ b/src/Core/src/App/src/Message.php
@@ -4,6 +4,7 @@
 
 namespace Core\App;
 
+use function count;
 use function implode;
 use function sprintf;
 
@@ -34,18 +35,23 @@ class Message
     . 'you will receive an email with further instructions on resetting your account\'s password.';
     public const MAIL_SENT_USER_ACTIVATION    = 'User activation mail has been successfully sent to "%s"';
     public const MISSING_CONFIG               = 'Missing configuration value: "%s".';
+    public const NOT_ACCEPTABLE               = 'Not acceptable.';
     public const RESET_PASSWORD_EXPIRED       = 'Reset password hash is invalid (expired).';
     public const RESET_PASSWORD_NOT_FOUND     = 'Reset password request not found.';
     public const RESET_PASSWORD_OK            = 'Password successfully modified.';
     public const RESET_PASSWORD_USED          = 'Reset password hash is invalid (used).';
     public const RESET_PASSWORD_VALID         = 'Reset password hash is valid.';
+    public const RESOURCE_ALREADY_REGISTERED  = 'Resource "%s" is already registered.';
     public const RESOURCE_NOT_ALLOWED         = 'You are not allowed to access this resource.';
+    public const RESOURCE_NOT_FOUND           = '%s not found.';
     public const RESTRICTION_DEPRECATION      = 'Cannot use both "%s" and "%s" attributes on the same object.';
     public const RESTRICTION_IMAGE            = 'File must be an image> Accepted mim type(s): %s';
     public const RESTRICTION_ROLES            = 'At least one role is required.';
     public const ROLE_NOT_FOUND               = 'Role not found.';
     public const SERVICE_NOT_FOUND            = 'Service %s not found in the container.';
     public const SETTING_NOT_FOUND            = 'Setting "%s" not found.';
+    public const TEMPLATE_NOT_FOUND           = 'Template "%s" not found.';
+    public const UNSUPPORTED_MEDIA_TYPE       = 'Unsupported Media Type.';
     public const USER_ACTIVATED               = 'User account has been activated.';
     public const USER_ALREADY_ACTIVATED       = 'User account is already active.';
     public const USER_ALREADY_DEACTIVATED     = 'User account is already inactive.';
@@ -93,6 +99,25 @@ public static function mailSentUserActivation(string $email): string
         return sprintf(self::MAIL_SENT_USER_ACTIVATION, $email);
     }
 
+    public static function notAcceptable(array $types = []): string
+    {
+        if (count($types) === 0) {
+            return self::NOT_ACCEPTABLE;
+        }
+
+        return sprintf('%s Supported types: %s', self::NOT_ACCEPTABLE, implode(', ', $types));
+    }
+
+    public static function resourceAlreadyRegistered(string $resource): string
+    {
+        return sprintf(self::RESOURCE_ALREADY_REGISTERED, $resource);
+    }
+
+    public static function resourceNotFound(string $resource = 'Resource'): string
+    {
+        return sprintf(self::RESOURCE_NOT_FOUND, $resource);
+    }
+
     public static function restrictionDeprecation(string $first, string $second): string
     {
         return sprintf(self::RESTRICTION_DEPRECATION, $first, $second);
@@ -113,6 +138,20 @@ public static function settingNotFound(string $identifier): string
         return sprintf(self::SETTING_NOT_FOUND, $identifier);
     }
 
+    public static function templateNotFound(string $template): string
+    {
+        return sprintf(self::TEMPLATE_NOT_FOUND, $template);
+    }
+
+    public static function unsupportedMediaType(array $types = []): string
+    {
+        if (count($types) === 0) {
+            return self::UNSUPPORTED_MEDIA_TYPE;
+        }
+
+        return sprintf('%s Supported types: %s', self::UNSUPPORTED_MEDIA_TYPE, implode(', ', $types));
+    }
+
     public static function validatorLengthMax(int $max): string
     {
         return sprintf(self::VALIDATOR_LENGTH_MAX, $max);
diff --git a/src/Core/src/App/src/Service/MailService.php b/src/Core/src/App/src/Service/MailService.php
index 510c28e..80f0272 100644
--- a/src/Core/src/App/src/Service/MailService.php
+++ b/src/Core/src/App/src/Service/MailService.php
@@ -9,7 +9,6 @@
 use Dot\DependencyInjection\Attribute\Inject;
 use Dot\Log\LoggerInterface;
 use Dot\Mail\Exception\MailException;
-use Mezzio\Template\TemplateRendererInterface;
 use Symfony\Component\Mailer\Exception\TransportExceptionInterface;
 
 use function sprintf;
@@ -17,13 +16,11 @@
 class MailService
 {
     #[Inject(
-        TemplateRendererInterface::class,
         'dot-mail.service.default',
         'dot-log.default_logger',
         'config',
     )]
     public function __construct(
-        private readonly TemplateRendererInterface $templateRenderer,
         protected \Dot\Mail\Service\MailService $mailService,
         protected LoggerInterface $logger,
         private readonly array $config,
@@ -33,7 +30,7 @@ public function __construct(
     /**
      * @throws MailException
      */
-    public function sendActivationMail(User $user): bool
+    public function sendActivationMail(User $user, string $body): bool
     {
         if ($user->isActive()) {
             return false;
@@ -41,12 +38,7 @@ public function sendActivationMail(User $user): bool
 
         $this->mailService->getMessage()->addTo($user->getDetail()->getEmail(), $user->getName());
         $this->mailService->setSubject('Welcome to ' . $this->config['application']['name']);
-        $this->mailService->setBody(
-            $this->templateRenderer->render('user::activate', [
-                'config' => $this->config,
-                'user'   => $user,
-            ])
-        );
+        $this->mailService->setBody($body);
 
         try {
             return $this->mailService->send()->isValid();
@@ -59,18 +51,13 @@ public function sendActivationMail(User $user): bool
     /**
      * @throws MailException
      */
-    public function sendResetPasswordRequestedMail(User $user): bool
+    public function sendResetPasswordRequestedMail(User $user, string $body): bool
     {
         $this->mailService->getMessage()->addTo($user->getDetail()->getEmail(), $user->getName());
         $this->mailService->setSubject(
             'Reset password instructions for your ' . $this->config['application']['name'] . ' account'
         );
-        $this->mailService->setBody(
-            $this->templateRenderer->render('user::reset-password-requested', [
-                'config' => $this->config,
-                'user'   => $user,
-            ])
-        );
+        $this->mailService->setBody($body);
 
         try {
             return $this->mailService->send()->isValid();
@@ -83,18 +70,13 @@ public function sendResetPasswordRequestedMail(User $user): bool
     /**
      * @throws MailException
      */
-    public function sendResetPasswordCompletedMail(User $user): bool
+    public function sendResetPasswordCompletedMail(User $user, string $body): bool
     {
         $this->mailService->getMessage()->addTo($user->getDetail()->getEmail(), $user->getName());
         $this->mailService->setSubject(
             'You have successfully reset the password for your ' . $this->config['application']['name'] . ' account'
         );
-        $this->mailService->setBody(
-            $this->templateRenderer->render('user::reset-password-completed', [
-                'config' => $this->config,
-                'user'   => $user,
-            ])
-        );
+        $this->mailService->setBody($body);
 
         try {
             return $this->mailService->send()->isValid();
@@ -107,16 +89,13 @@ public function sendResetPasswordCompletedMail(User $user): bool
     /**
      * @throws MailException
      */
-    public function sendWelcomeMail(User $user): bool
+    public function sendRecoverIdentityMail(User $user, string $body): bool
     {
         $this->mailService->getMessage()->addTo($user->getDetail()->getEmail(), $user->getName());
-        $this->mailService->setSubject('Welcome to ' . $this->config['application']['name']);
-        $this->mailService->setBody(
-            $this->templateRenderer->render('user::welcome', [
-                'config' => $this->config,
-                'user'   => $user,
-            ])
+        $this->mailService->setSubject(
+            'Recover identity for your ' . $this->config['application']['name'] . ' account'
         );
+        $this->mailService->setBody($body);
 
         try {
             return $this->mailService->send()->isValid();
@@ -129,18 +108,11 @@ public function sendWelcomeMail(User $user): bool
     /**
      * @throws MailException
      */
-    public function sendRecoverIdentityMail(User $user): bool
+    public function sendWelcomeMail(User $user, string $body): bool
     {
         $this->mailService->getMessage()->addTo($user->getDetail()->getEmail(), $user->getName());
-        $this->mailService->setSubject(
-            'Recover identity for your ' . $this->config['application']['name'] . ' account'
-        );
-        $this->mailService->setBody(
-            $this->templateRenderer->render('user::recover-identity-requested', [
-                'config' => $this->config,
-                'user'   => $user,
-            ])
-        );
+        $this->mailService->setSubject('Welcome to ' . $this->config['application']['name']);
+        $this->mailService->setBody($body);
 
         try {
             return $this->mailService->send()->isValid();
diff --git a/src/Core/src/Setting/src/ConfigProvider.php b/src/Core/src/Setting/src/ConfigProvider.php
index c82dea1..9cfda07 100644
--- a/src/Core/src/Setting/src/ConfigProvider.php
+++ b/src/Core/src/Setting/src/ConfigProvider.php
@@ -19,7 +19,7 @@ public function __invoke(): array
         ];
     }
 
-    public function getDependencies(): array
+    private function getDependencies(): array
     {
         return [
             'factories' => [
@@ -28,7 +28,7 @@ public function getDependencies(): array
         ];
     }
 
-    public function getDoctrineConfig(): array
+    private function getDoctrineConfig(): array
     {
         return [
             'driver' => [
diff --git a/src/Core/src/User/src/Entity/User.php b/src/Core/src/User/src/Entity/User.php
index e33552e..220a0f2 100644
--- a/src/Core/src/User/src/Entity/User.php
+++ b/src/Core/src/User/src/Entity/User.php
@@ -18,6 +18,7 @@
 use function array_map;
 use function bin2hex;
 use function md5;
+use function trim;
 use function uniqid;
 
 #[ORM\Entity(repositoryClass: UserRepository::class)]
@@ -116,17 +117,6 @@ public function addResetPassword(UserResetPassword $resetPassword): void
         $this->resetPasswords->add($resetPassword);
     }
 
-    public function createResetPassword(): self
-    {
-        $this->resetPasswords->add(
-            (new UserResetPassword())
-                ->setHash(self::generateHash())
-                ->setUser($this)
-        );
-
-        return $this;
-    }
-
     public function getResetPasswords(): Collection
     {
         return $this->resetPasswords;
@@ -261,7 +251,7 @@ public static function generateHash(): string
 
     public function getName(): string
     {
-        return $this->getDetail()->getFirstName() . ' ' . $this->getDetail()->getLastName();
+        return trim($this->getDetail()->getFirstName() . ' ' . $this->getDetail()->getLastName());
     }
 
     public function isActive(): bool
diff --git a/src/User/src/Handler/PostUserCreateHandler.php b/src/User/src/Handler/PostUserCreateHandler.php
index b96b02f..557f2c3 100644
--- a/src/User/src/Handler/PostUserCreateHandler.php
+++ b/src/User/src/Handler/PostUserCreateHandler.php
@@ -35,6 +35,7 @@ class PostUserCreateHandler implements RequestHandlerInterface
         CreateUserForm::class,
         MailService::class,
         'dot-log.default_logger',
+        'config',
     )]
     public function __construct(
         protected UserServiceInterface $userService,
@@ -44,6 +45,7 @@ public function __construct(
         protected CreateUserForm $createUserForm,
         protected MailService $mailService,
         protected Logger $logger,
+        protected array $config,
     ) {
     }
 
@@ -58,7 +60,11 @@ public function handle(ServerRequestInterface $request): ResponseInterface
                 $user = $this->userService->saveUser((array) $this->createUserForm->getData());
                 $this->messenger->addSuccess(Message::USER_CREATED);
                 if ($user->getDetail()->hasEmail()) {
-                    $this->mailService->sendWelcomeMail($user);
+                    $body = $this->template->render('user::welcome', [
+                        'config' => $this->config,
+                        'user'   => $user,
+                    ]);
+                    $this->mailService->sendWelcomeMail($user, $body);
                 }
 
                 return new EmptyResponse(StatusCodeInterface::STATUS_CREATED);
diff --git a/test/Unit/App/Entity/AbstractEntityTest.php b/test/Unit/App/Entity/AbstractEntityTest.php
index 1757ad5..bbd828d 100644
--- a/test/Unit/App/Entity/AbstractEntityTest.php
+++ b/test/Unit/App/Entity/AbstractEntityTest.php
@@ -7,6 +7,7 @@
 use AdminTest\Unit\UnitTest;
 use Core\App\Entity\AbstractEntity;
 use Core\App\Entity\EntityInterface;
+use DateTimeImmutable;
 use Ramsey\Uuid\UuidInterface;
 
 class AbstractEntityTest extends UnitTest
@@ -18,6 +19,26 @@ public function getArrayCopy(): array
             {
                 return [];
             }
+
+            public function getCreated(): ?DateTimeImmutable
+            {
+                return null;
+            }
+
+            public function getCreatedFormatted(string $dateFormat = 'Y-m-d H:i:s'): string
+            {
+                return '';
+            }
+
+            public function getUpdated(): ?DateTimeImmutable
+            {
+                return null;
+            }
+
+            public function getUpdatedFormatted(string $dateFormat = 'Y-m-d H:i:s'): ?string
+            {
+                return null;
+            }
         };
 
         $this->assertContainsOnlyInstancesOf(EntityInterface::class, [$entity]);