diff --git a/CHANGELOG b/CHANGELOG
index a15edc0..4490db5 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,12 @@
+SlackBundle v1.3.0
+==================
+- Feature: File upload service now accepts an array of channels, string usage is deprecated
+- Feature: Implement action to invite users to a channel
+- Feature: Implement action and service to get details about users on the team
+- Feature: Implement console command to read userdata from api
+- Patch: File upload no longer need to lookup channel id due to api changes
+- Patch: Set aliases for command names - old names with dzunke: prefix will be removed in the future!
+
 SlackBundle v1.2.2
 ==================
 - Patch: MessageAttachment support complete attachment-api (by @shimmi)
diff --git a/Command/BotMessagingCommand.php b/Command/BotMessagingCommand.php
index bc4edac..a0dd2bd 100644
--- a/Command/BotMessagingCommand.php
+++ b/Command/BotMessagingCommand.php
@@ -22,6 +22,7 @@ protected function configure()
     {
         $this
             ->setName('dzunke:slack:run-bot')
+            ->setAliases(['slack:run-bot'])
             ->setDescription('Running the Bot-User to a Channel')
             ->addArgument(
                 'channel',
diff --git a/Command/ChangeChannelsTopicCommand.php b/Command/ChangeChannelsTopicCommand.php
index 4da6472..cd4533a 100644
--- a/Command/ChangeChannelsTopicCommand.php
+++ b/Command/ChangeChannelsTopicCommand.php
@@ -15,6 +15,7 @@ protected function configure()
     {
         $this
             ->setName('dzunke:slack:channels:topic')
+            ->setAliases(['slack:channels:topic'])
             ->setDescription('Changing the Topic of a Channel')
             ->addOption('discover', 'd', InputOption::VALUE_NONE, 'channel name is given, so discover the id')
             ->addArgument('channel', InputArgument::REQUIRED, 'an existing channel in your team to change the topic')
diff --git a/Command/DebugCommand.php b/Command/DebugCommand.php
index d5911cc..98ccaab 100644
--- a/Command/DebugCommand.php
+++ b/Command/DebugCommand.php
@@ -31,6 +31,7 @@ protected function configure()
     {
         $this
             ->setName('dzunke:slack:debug')
+            ->setAliases(['slack:debug'])
             ->setDescription('Gives some Debug Informations about the SlackBundle');
     }
 
diff --git a/Command/MessageCommand.php b/Command/MessageCommand.php
index 9cdf518..2e2aa84 100644
--- a/Command/MessageCommand.php
+++ b/Command/MessageCommand.php
@@ -14,6 +14,7 @@ protected function configure()
     {
         $this
             ->setName('dzunke:slack:message')
+            ->setAliases(['slack:message'])
             ->setDescription('Sending a Message to a Channel or User')
             ->addArgument('channel', InputArgument::REQUIRED, 'an existing channel in your team to send to')
             ->addArgument('username', InputArgument::REQUIRED, 'an username from configured identities to send with')
diff --git a/Command/UsersCommand.php b/Command/UsersCommand.php
new file mode 100644
index 0000000..5e3cf69
--- /dev/null
+++ b/Command/UsersCommand.php
@@ -0,0 +1,75 @@
+<?php
+
+namespace DZunke\SlackBundle\Command;
+
+use Symfony\Bundle\FrameworkBundle\Command\ContainerAwareCommand;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+
+class UsersCommand extends ContainerAwareCommand
+{
+
+    protected function configure()
+    {
+        $this
+            ->setName('dzunke:slack:users')
+            ->setAliases(['slack:users'])
+            ->setDescription('work with the users of your team')
+            ->addOption('only-active', 'a', InputOption::VALUE_NONE, 'lists only active users')
+            ->addOption('only-deleted', 'd', InputOption::VALUE_NONE, 'lists only deleted users')
+            ->addOption('user', 'u', InputOption::VALUE_REQUIRED, 'get a single user');
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output)
+    {
+        $formatter = $this->getHelper('formatter');
+
+        try {
+            $api = $this->getContainer()->get('dz.slack.users');
+
+            if ($input->getOption('only-active')) {
+                $response = $api->getActiveUsers();
+            } elseif ($input->getOption('only-deleted')) {
+                $response = $api->getDeletedUsers();
+            } elseif ($input->getOption('user')) {
+                $response = $api->getUser($input->getOption('user'));
+
+                if (is_array($response)) {
+                    $response = [$response['name'] => $response];
+                }
+            } else {
+                $response = $api->getUsers();
+            }
+
+            if (empty($response)) {
+                $output->writeln($formatter->formatBlock('✘ no data found', 'error'));
+                return;
+            }
+
+            array_walk(
+                $response,
+                function (&$row) {
+                    foreach ($row as &$col) {
+                        if (is_bool($col)) {
+                            $col = $col ? 'true' : 'false';
+                        }
+                    }
+                }
+            );
+
+            $table = $this->getHelper('table');
+            $table->setHeaders(array_keys(reset($response)))->setRows($response);
+            $table->render($output);
+
+
+        } catch (\Exception $e) {
+            $output->writeln(
+                $formatter->formatBlock(
+                    sprintf('✘ there was an error with your request: "%s"', $e->getMessage()),
+                    'error'
+                )
+            );
+        }
+    }
+}
diff --git a/Resources/config/services.yml b/Resources/config/services.yml
index 7111d19..85a0e42 100644
--- a/Resources/config/services.yml
+++ b/Resources/config/services.yml
@@ -17,3 +17,7 @@ services:
     dz.slack.channels:
         class: DZunke\SlackBundle\Slack\Channels
         arguments: [@dz.slack.client]
+
+    dz.slack.users:
+        class: DZunke\SlackBundle\Slack\Users
+        arguments: [@dz.slack.client]
diff --git a/Resources/doc/actions-list.md b/Resources/doc/actions-list.md
index 2ca7ea0..2e7eea1 100644
--- a/Resources/doc/actions-list.md
+++ b/Resources/doc/actions-list.md
@@ -38,6 +38,23 @@ protected $parameter = [
 ];
 ```
 
+## channels.invite
+
+[Slack Documentation](https://api.slack.com/methods/channels.invite)
+
+Constant: \DZunke\SlackBundle\Slack\Client::ACTION_CHANNELS_INVITE
+
+Available Parameters:
+
+Both Parameters have to be the if of the entity and not the raw name
+
+``` php
+protected $parameter = [
+   'channel' => null,
+   'user' => null,
+];
+```
+
 ## channels.list
 
 [Slack Documentation](https://api.slack.com/methods/channels.list)
@@ -105,3 +122,15 @@ protected $parameter = [
     'channels'        => null   # If no Channel is given the File will be private to the API-User
 ];
 ```
+
+## users.list
+
+[Slack Documentation](https://api.slack.com/methods/users.list)
+
+Constant: \DZunke\SlackBundle\Slack\Client::ACTION_USERS_LIST
+
+``` php
+protected $parameter = [
+    'presence' => 1
+];
+```
diff --git a/Resources/doc/commands.md b/Resources/doc/commands.md
index 490d46b..822d859 100644
--- a/Resources/doc/commands.md
+++ b/Resources/doc/commands.md
@@ -5,7 +5,7 @@
 Output of Debug Informations like Connection, Identities, Channels etc.
 
 ``` bash
-php app/console dzunke:slack:debug
+php app/console slack:debug
 ```
 
 ## Messaging
@@ -13,8 +13,8 @@ php app/console dzunke:slack:debug
 Sending a Message directly from Console
 
 ``` bash
-php app/console dzunke:slack:message @fooUser BazUser "Lorem ipsum dolor sit amet .."
-php app/console dzunke:slack:message "#FooChannel" BazUser "Lorem ipsum dolor sit amet .."
+php app/console slack:message @fooUser BazUser "Lorem ipsum dolor sit amet .."
+php app/console slack:message "#FooChannel" BazUser "Lorem ipsum dolor sit amet .."
 ```
 
 ## Switch Topic of a Channel
@@ -22,8 +22,20 @@ php app/console dzunke:slack:message "#FooChannel" BazUser "Lorem ipsum dolor si
 You can switch the Topic of a Channel
 
 ``` bash
-php app/console dzunke:slack:channels:topic "C02GABTDT" "Lorem ipsum dolor sit amet .."
+php app/console slack:channels:topic "C02GABTDT" "Lorem ipsum dolor sit amet .."
 
 # If you don't have the ChannelId it must be discovered while processing
-php app/console dzunke:slack:channels:topic "#foo-channel" "Lorem ipsum dolor sit amet .." -d
+php app/console slack:channels:topic "#foo-channel" "Lorem ipsum dolor sit amet .." -d
 ```
+
+## Read userdata from api
+
+you will get a table of userdata.
+
+``` bash
+# Read all users from your team
+php app/console slack:users
+
+# Read a single user
+php app/console slack:users --user=nameOfTheUser
+``` 
diff --git a/Resources/doc/services.md b/Resources/doc/services.md
index 16bd40a..5999f8d 100644
--- a/Resources/doc/services.md
+++ b/Resources/doc/services.md
@@ -65,3 +65,25 @@ $service->info($channelId);
 $service->setTopic($channelId, $newTopic);
 ```
 
+## Users
+
+To get more information about the users in your team there is a service to read user specific things. In lack of an
+api method to load single users every method of the service will load the complete list of users in your team. Beware
+of using this service without caching informations you often need.
+
+``` php
+$service = $container->get('dz.slack.users');
+
+# get the list of all users in your team
+$service->getUsers();
+
+# get all users that are not deleted
+$service->getActiveUsers();
+
+# get all deleted users
+$service->getDeletedUsers();
+
+# get the id of a single user - needed for some actions
+$service->getId($username);
+
+```
diff --git a/Slack/Client.php b/Slack/Client.php
index 1bd6753..866f40e 100644
--- a/Slack/Client.php
+++ b/Slack/Client.php
@@ -30,7 +30,7 @@ public function __construct(Connection $connection)
      * @param array  $parameter
      * @return Response|bool
      */
-    public function send($action, array $parameter)
+    public function send($action, array $parameter = [])
     {
         if (!$this->connection->isValid()) {
             return false;
diff --git a/Slack/Client/Actions.php b/Slack/Client/Actions.php
index 163024a..1100ed5 100644
--- a/Slack/Client/Actions.php
+++ b/Slack/Client/Actions.php
@@ -12,8 +12,10 @@ class Actions
     const ACTION_AUTH_TEST = 'auth.test';
     const ACTION_CHANNELS_SET_TOPIC = 'channels.setTopic';
     const ACTION_CHANNELS_INFO = 'channels.info';
+    const ACTION_CHANNELS_INVITE = 'channels.invite';
     const ACTION_CHANNELS_HISTORY = 'channels.history';
     const ACTION_FILES_UPLOAD = 'files.upload';
+    const ACTION_USERS_LIST = 'users.list';
 
     /**
      * @var array
@@ -25,8 +27,10 @@ class Actions
         self::ACTION_AUTH_TEST => 'AuthTest',
         self::ACTION_CHANNELS_SET_TOPIC => 'ChannelsSetTopic',
         self::ACTION_CHANNELS_INFO => 'ChannelsInfo',
+        self::ACTION_CHANNELS_INVITE => 'ChannelsInvite',
         self::ACTION_CHANNELS_HISTORY => 'ChannelsHistory',
-        self::ACTION_FILES_UPLOAD => 'FilesUpload'
+        self::ACTION_FILES_UPLOAD => 'FilesUpload',
+        self::ACTION_USERS_LIST => 'UsersList'
     ];
 
     /**
diff --git a/Slack/Client/Actions/ApiTest.php b/Slack/Client/Actions/ApiTest.php
index 6627e46..92238d9 100644
--- a/Slack/Client/Actions/ApiTest.php
+++ b/Slack/Client/Actions/ApiTest.php
@@ -4,6 +4,9 @@
 
 use DZunke\SlackBundle\Slack\Client\Actions;
 
+/**
+ * @see https://api.slack.com/methods/api.test
+ */
 class ApiTest implements ActionsInterface
 {
 
diff --git a/Slack/Client/Actions/AuthTest.php b/Slack/Client/Actions/AuthTest.php
index 972c8fc..cf38265 100644
--- a/Slack/Client/Actions/AuthTest.php
+++ b/Slack/Client/Actions/AuthTest.php
@@ -4,6 +4,9 @@
 
 use DZunke\SlackBundle\Slack\Client\Actions;
 
+/**
+ * @see https://api.slack.com/methods/auth.test
+ */
 class AuthTest implements ActionsInterface
 {
 
diff --git a/Slack/Client/Actions/ChannelsHistory.php b/Slack/Client/Actions/ChannelsHistory.php
index 2e43d41..025ec6b 100644
--- a/Slack/Client/Actions/ChannelsHistory.php
+++ b/Slack/Client/Actions/ChannelsHistory.php
@@ -4,6 +4,9 @@
 
 use DZunke\SlackBundle\Slack\Client\Actions;
 
+/**
+ * @see https://api.slack.com/methods/channels.history
+ */
 class ChannelsHistory implements ActionsInterface
 {
 
diff --git a/Slack/Client/Actions/ChannelsInfo.php b/Slack/Client/Actions/ChannelsInfo.php
index 7703a8d..7ef01f9 100644
--- a/Slack/Client/Actions/ChannelsInfo.php
+++ b/Slack/Client/Actions/ChannelsInfo.php
@@ -4,6 +4,9 @@
 
 use DZunke\SlackBundle\Slack\Client\Actions;
 
+/**
+ * @see https://api.slack.com/methods/channels.info
+ */
 class ChannelsInfo implements ActionsInterface
 {
 
diff --git a/Slack/Client/Actions/ChannelsInvite.php b/Slack/Client/Actions/ChannelsInvite.php
new file mode 100644
index 0000000..a753db5
--- /dev/null
+++ b/Slack/Client/Actions/ChannelsInvite.php
@@ -0,0 +1,65 @@
+<?php
+
+namespace DZunke\SlackBundle\Slack\Client\Actions;
+
+use DZunke\SlackBundle\Slack\Client\Actions;
+
+/**
+ * @see https://api.slack.com/methods/channels.invite
+ */
+class ChannelsInvite implements ActionsInterface
+{
+
+    /**
+     * @var array
+     */
+    protected $parameter = [
+        'channel' => null,
+        'user' => null
+    ];
+
+    /**
+     * @return array
+     * @throws \Exception
+     */
+    public function getRenderedRequestParams()
+    {
+        if (is_null($this->parameter['channel']) || is_null($this->parameter['user'])) {
+            throw new \Exception('both parameters channel and user must be given');
+        }
+
+        return $this->parameter;
+    }
+
+    /**
+     * @param array $parameter
+     * @return $this
+     */
+    public function setParameter(array $parameter)
+    {
+        foreach ($parameter as $key => $value) {
+            if (array_key_exists($key, $this->parameter)) {
+                $this->parameter[$key] = $value;
+            }
+        }
+
+        return $this;
+    }
+
+    /**
+     * @return string
+     */
+    public function getAction()
+    {
+        return Actions::ACTION_CHANNELS_INVITE;
+    }
+
+    /**
+     * @param array $response
+     * @return array
+     */
+    public function parseResponse(array $response)
+    {
+        return [];
+    }
+}
diff --git a/Slack/Client/Actions/ChannelsList.php b/Slack/Client/Actions/ChannelsList.php
index 2e4bdb2..707daac 100644
--- a/Slack/Client/Actions/ChannelsList.php
+++ b/Slack/Client/Actions/ChannelsList.php
@@ -4,6 +4,9 @@
 
 use DZunke\SlackBundle\Slack\Client\Actions;
 
+/**
+ * @see https://api.slack.com/methods/channels.list
+ */
 class ChannelsList implements ActionsInterface
 {
 
diff --git a/Slack/Client/Actions/ChannelsSetTopic.php b/Slack/Client/Actions/ChannelsSetTopic.php
index 0df3a2d..39315dd 100644
--- a/Slack/Client/Actions/ChannelsSetTopic.php
+++ b/Slack/Client/Actions/ChannelsSetTopic.php
@@ -4,6 +4,9 @@
 
 use DZunke\SlackBundle\Slack\Client\Actions;
 
+/**
+ * @see https://api.slack.com/methods/channels.setTopic
+ */
 class ChannelsSetTopic implements ActionsInterface
 {
 
diff --git a/Slack/Client/Actions/ChatPostMessage.php b/Slack/Client/Actions/ChatPostMessage.php
index 8651acf..71964d4 100644
--- a/Slack/Client/Actions/ChatPostMessage.php
+++ b/Slack/Client/Actions/ChatPostMessage.php
@@ -6,6 +6,9 @@
 use DZunke\SlackBundle\Slack\Entity\MessageAttachment as Attachment;
 use DZunke\SlackBundle\Slack\Messaging\Identity;
 
+/**
+ * @see https://api.slack.com/methods/chat.postMessage
+ */
 class ChatPostMessage implements ActionsInterface
 {
     /**
diff --git a/Slack/Client/Actions/FilesUpload.php b/Slack/Client/Actions/FilesUpload.php
index f2c1779..661d795 100644
--- a/Slack/Client/Actions/FilesUpload.php
+++ b/Slack/Client/Actions/FilesUpload.php
@@ -4,6 +4,9 @@
 
 use DZunke\SlackBundle\Slack\Client\Actions;
 
+/**
+ * @see https://api.slack.com/methods/files.upload
+ */
 class FilesUpload implements ActionsInterface
 {
 
diff --git a/Slack/Client/Actions/UsersList.php b/Slack/Client/Actions/UsersList.php
new file mode 100644
index 0000000..815bd94
--- /dev/null
+++ b/Slack/Client/Actions/UsersList.php
@@ -0,0 +1,72 @@
+<?php
+
+namespace DZunke\SlackBundle\Slack\Client\Actions;
+
+use DZunke\SlackBundle\Slack\Client\Actions;
+
+/**
+ * @see https://api.slack.com/methods/users.list
+ */
+class UsersList implements ActionsInterface
+{
+
+    /**
+     * @var array
+     */
+    protected $parameter = [
+        'presence' => 1
+    ];
+
+    /**
+     * @return array
+     */
+    public function getRenderedRequestParams()
+    {
+        return $this->parameter;
+    }
+
+    /**
+     * @param array $parameter
+     * @return $this
+     */
+    public function setParameter(array $parameter)
+    {
+        foreach ($parameter as $key => $value) {
+            if (array_key_exists($key, $this->parameter)) {
+                $this->parameter[$key] = $value;
+            }
+        }
+
+        return $this;
+    }
+
+    /**
+     * @return string
+     */
+    public function getAction()
+    {
+        return Actions::ACTION_USERS_LIST;
+    }
+
+    /**
+     * @param array $response
+     * @return array
+     */
+    public function parseResponse(array $response)
+    {
+        $users = [];
+        foreach ($response['members'] as $user) {
+            $users[$user['name']] = [
+                'id' => $user['id'],
+                'name' => $user['name'],
+                'deleted' => (bool)$user['deleted'],
+                'real_name' => $user['profile']['real_name'],
+                'email' => $user['profile']['email'],
+                'is_bot' => (bool)$user['is_bot'],
+                'presence' => isset($user['presence']) ? $user['presence'] : null
+            ];
+        }
+
+        return $users;
+    }
+}
diff --git a/Slack/Messaging.php b/Slack/Messaging.php
index 1120e5e..551ea53 100644
--- a/Slack/Messaging.php
+++ b/Slack/Messaging.php
@@ -72,7 +72,7 @@ public function message($channel, $message, $identity, array $attachments = [])
 
 
     /**
-     * @param string        $channel
+     * @param string|array  $channel    # String is DEPRECATED scince v1.3 - Deliver Array
      * @param string        $title
      * @param string        $file
      * @param string|null   $comment
@@ -84,18 +84,15 @@ public function upload($channel, $title, $file, $comment = null)
             return false;
         }
 
+        if (!is_array($channel)) {
+            @trigger_error('Channel as String is deprecated scince v1.3, please deliver an Array of Channels', E_USER_DEPRECATED);
+            $channel = [$channel];
+        }
+
         $params = [];
         $params['title'] = $title;
         $params['initial_comment'] = $comment;
-        $params['channels'] = null;
-
-        $channelDiscover = new Channels($this->client);
-        $channelId = $channelDiscover->getId($channel);
-
-        if (!empty($channelId)) {
-            $params['channels'] = $channelId;
-        }
-
+        $params['channels'] = implode(',', $channel);
         $params['content'] = file_get_contents($file);
         $params['fileType'] = mime_content_type($file);
         $params['filename'] = basename($file);
diff --git a/Slack/Users.php b/Slack/Users.php
new file mode 100644
index 0000000..fa9770b
--- /dev/null
+++ b/Slack/Users.php
@@ -0,0 +1,85 @@
+<?php
+
+namespace DZunke\SlackBundle\Slack;
+
+use DZunke\SlackBundle\Slack\Client\Actions;
+
+class Users
+{
+    /**
+     * @var Client
+     */
+    protected $client;
+
+    /**
+     * @param Client $client
+     */
+    public function  __construct(Client $client)
+    {
+        $this->client = $client;
+    }
+
+    /**
+     * @return Client
+     */
+    public function getClient()
+    {
+        return $this->client;
+    }
+
+    /**
+     * @return array
+     */
+    public function getUsers()
+    {
+        return $this->client->send(Actions::ACTION_USERS_LIST)->getData();
+    }
+
+    /**
+     * @return array
+     */
+    public function getActiveUsers()
+    {
+        return array_filter(
+            $this->getUsers(),
+            function ($user) {
+                return $user['deleted'] === false;
+            }
+        );
+    }
+
+    /**
+     * @return array
+     */
+    public function getDeletedUsers()
+    {
+        return array_filter(
+            $this->getUsers(),
+            function ($user) {
+                return $user['deleted'] === true;
+            }
+        );
+    }
+
+    /**
+     * @param string $name
+     * @return null|array
+     */
+    public function getUser($name)
+    {
+        $users = $this->getUsers();
+
+        return array_key_exists($name, $users) ? $users[$name] : null;
+    }
+
+    /**
+     * @param string $name
+     * @return null|array
+     */
+    public function getId($name)
+    {
+        $user = $this->getUser($name);
+
+        return !is_null($user) ? $user['id'] : null;
+    }
+}