diff --git a/console.php b/console.php
index 99e1cf3360..903b8fec1d 100755
--- a/console.php
+++ b/console.php
@@ -76,6 +76,11 @@ $cli->addCommands(
         // Chamilo commands.
 
         new ChamiloLMS\Command\Template\AsseticDumpCommand(),
+        new ChamiloLMS\Command\Transaction\ImportToSystemCommand(),
+        new ChamiloLMS\Command\Transaction\ReceiveCommand(),
+        new ChamiloLMS\Command\Transaction\ProcessReceivedEnvelopesCommand(),
+        new ChamiloLMS\Command\Transaction\SendCommand(),
+        new ChamiloLMS\Command\Transaction\MineduSendCommand(),
         new ChamiloLMS\Command\Translation\ExportLanguagesCommand(),
 
         // Chash commands.
diff --git a/main/exercice/exercise.class.php b/main/exercice/exercise.class.php
index 4bc6eec5cf..2bdfa1ba23 100644
--- a/main/exercice/exercise.class.php
+++ b/main/exercice/exercise.class.php
@@ -148,8 +148,8 @@ class Exercise
         }
         $this->course_id = $course_info['real_id'];
         $this->course = $course_info;
-        $this->fastEdition = api_get_course_setting('allow_fast_exercise_edition') == 1 ? true : false;
-        $this->emailAlert = api_get_course_setting('email_alert_manager_on_new_quiz') == 1 ? true : false;
+        $this->fastEdition = api_get_course_setting('allow_fast_exercise_edition', $course_info['code']) == 1 ? true : false;
+        $this->emailAlert = api_get_course_setting('email_alert_manager_on_new_quiz', $course_info['code']) == 1 ? true : false;
         $this->hideQuestionTitle = 0;
     }
 
@@ -5324,12 +5324,12 @@ class Exercise
      *  </code>
      * @return array
      */
-    private function setMediaList($questionList)
+    private function setMediaList($questionList, $course_id)
     {
         $mediaList= array();
         if (!empty($questionList)) {
             foreach ($questionList as $questionId) {
-                $objQuestionTmp = Question::read($questionId);
+                $objQuestionTmp = Question::read($questionId, $course_id);
 
                 // If a media question exists
                 if (isset($objQuestionTmp->parent_id) && $objQuestionTmp->parent_id != 0) {
@@ -5496,7 +5496,7 @@ class Exercise
             }
         }
 
-        $this->setMediaList($questionList);
+        $this->setMediaList($questionList, $this->course_id);
 
         $this->questionList = $this->transformQuestionListWithMedias($questionList, false);
         $this->questionListUncompressed = $this->transformQuestionListWithMedias($questionList, true);
diff --git a/main/exercice/fill_blanks.class.php b/main/exercice/fill_blanks.class.php
index fb55e0d88e..bd6de73917 100644
--- a/main/exercice/fill_blanks.class.php
+++ b/main/exercice/fill_blanks.class.php
@@ -30,9 +30,9 @@ class FillBlanks extends Question
     /**
      * Constructor
      */
-    public function FillBlanks()
+    public function FillBlanks($course_code = null)
     {
-        parent::question();
+        parent::question($course_code);
         $this->type      = FILL_IN_BLANKS;
         $this->isContent = $this->getIsContent();
     }
diff --git a/main/exercice/freeanswer.class.php b/main/exercice/freeanswer.class.php
index 7976ebecb4..8f620894b6 100644
--- a/main/exercice/freeanswer.class.php
+++ b/main/exercice/freeanswer.class.php
@@ -24,9 +24,9 @@ class FreeAnswer extends Question
     /**
      * Constructor
      */
-    public function __construct()
+    public function __construct($course_code =  null)
     {
-        parent::question();
+        parent::question($course_code);
         $this->type      = FREE_ANSWER;
         $this->isContent = $this->getIsContent();
     }
diff --git a/main/exercice/global_multiple_answer.class.php b/main/exercice/global_multiple_answer.class.php
index 611c677e7a..7ee1cc44a9 100644
--- a/main/exercice/global_multiple_answer.class.php
+++ b/main/exercice/global_multiple_answer.class.php
@@ -10,9 +10,9 @@ class GlobalMultipleAnswer extends Question
     /**
      *
      */
-    public function GlobalMultipleAnswer()
+    public function GlobalMultipleAnswer($course_code = null)
     {
-        parent::question();
+        parent::question($course_code);
         $this->type      = GLOBAL_MULTIPLE_ANSWER;
         $this->isContent = $this->getIsContent();
     }
diff --git a/main/exercice/hotspot.class.php b/main/exercice/hotspot.class.php
index 860885c3e3..ba75de8032 100644
--- a/main/exercice/hotspot.class.php
+++ b/main/exercice/hotspot.class.php
@@ -24,8 +24,8 @@ class HotSpot extends Question {
 	static $typePicture = 'hotspot.gif';
 	static $explanationLangVar = 'HotSpot';
 
-	function HotSpot() {
-		parent::question();
+	function HotSpot($course_code = null) {
+		parent::question($course_code);
 		$this -> type = HOT_SPOT;
 	}
 
diff --git a/main/exercice/matching.class.php b/main/exercice/matching.class.php
index 5b7d07a5ed..a89ee1ec54 100644
--- a/main/exercice/matching.class.php
+++ b/main/exercice/matching.class.php
@@ -25,9 +25,9 @@ class Matching extends Question
     /**
      * Constructor
      */
-    function Matching()
+    function Matching($course_code = null)
     {
-        parent::question();
+        parent::question($course_code);
         $this->type      = MATCHING;
         $this->isContent = $this->getIsContent();
     }
diff --git a/main/exercice/media_question.class.php b/main/exercice/media_question.class.php
index 25d1fa5f53..b92dc180db 100644
--- a/main/exercice/media_question.class.php
+++ b/main/exercice/media_question.class.php
@@ -6,9 +6,9 @@ class MediaQuestion extends Question
 	static $typePicture = 'media-question.png';
 	static $explanationLangVar = 'MediaQuestion';
 
-    public function __construct()
+    public function __construct($course_code = null)
     {
-        parent::question();
+        parent::question($course_code);
 		$this->type = MEDIA_QUESTION;
     }
 
diff --git a/main/exercice/multiple_answer.class.php b/main/exercice/multiple_answer.class.php
index 7a80f89d86..2e50926a94 100644
--- a/main/exercice/multiple_answer.class.php
+++ b/main/exercice/multiple_answer.class.php
@@ -26,9 +26,9 @@ class MultipleAnswer extends Question
     /**
      * Constructor
      */
-    public function MultipleAnswer()
+    public function MultipleAnswer($course_code = null)
     {
-        parent::question();
+        parent::question($course_code);
         $this->type      = MULTIPLE_ANSWER;
         $this->isContent = $this->getIsContent();
     }
diff --git a/main/exercice/multiple_answer_combination.class.php b/main/exercice/multiple_answer_combination.class.php
index 353566fb80..5d774eecbb 100644
--- a/main/exercice/multiple_answer_combination.class.php
+++ b/main/exercice/multiple_answer_combination.class.php
@@ -25,9 +25,9 @@ class MultipleAnswerCombination extends Question
     /**
      * Constructor
      */
-    public function MultipleAnswerCombination()
+    public function MultipleAnswerCombination($course_code = null)
     {
-        parent::question();
+        parent::question($course_code);
         $this->type      = MULTIPLE_ANSWER_COMBINATION;
         $this->isContent = $this->getIsContent();
     }
diff --git a/main/exercice/multiple_answer_true_false.class.php b/main/exercice/multiple_answer_true_false.class.php
index 90cbde4963..c37eb5b78c 100644
--- a/main/exercice/multiple_answer_true_false.class.php
+++ b/main/exercice/multiple_answer_true_false.class.php
@@ -25,9 +25,9 @@ class MultipleAnswerTrueFalse extends Question
     /**
      * Constructor
      */
-    public function MultipleAnswerTrueFalse()
+    public function MultipleAnswerTrueFalse($course_code = null)
     {
-        parent::question();
+        parent::question($course_code);
         $this->type      = MULTIPLE_ANSWER_TRUE_FALSE;
         $this->isContent = $this->getIsContent();
         $this->options   = array(1 => get_lang('True'), 2 => get_lang('False'), 3 => get_lang('DoubtScore'));
diff --git a/main/exercice/oral_expression.class.php b/main/exercice/oral_expression.class.php
index 4c4737feac..efd1befe98 100644
--- a/main/exercice/oral_expression.class.php
+++ b/main/exercice/oral_expression.class.php
@@ -23,8 +23,8 @@ class OralExpression extends Question
 	/**
 	 * Constructor
 	 */
-	function OralExpression(){
-		parent::question();
+	function OralExpression($course_code = null){
+		parent::question($course_code);
 		$this -> type = ORAL_EXPRESSION;
 		$this -> isContent = $this-> getIsContent();
 	}
diff --git a/main/exercice/question.class.php b/main/exercice/question.class.php
index 585e60fee2..7ee506323a 100644
--- a/main/exercice/question.class.php
+++ b/main/exercice/question.class.php
@@ -73,7 +73,7 @@ abstract class Question
      *
      * @author - Olivier Brouckaert
      */
-    public function Question()
+    public function Question($course_code = null)
     {
         $this->id            = 0;
         $this->question      = '';
@@ -86,7 +86,7 @@ abstract class Question
         //with an special hotspot: final_overlap, final_missing, final_excess
         $this->extra         = '';
         $this->exerciseList  = array();
-        $this->course        = api_get_course_info();
+        $this->course        = api_get_course_info($course_code);
         $this->category_list = array();
         $this->parent_id     = 0;
         $this->editionMode   = 'normal';
@@ -165,7 +165,7 @@ abstract class Question
         // if the question has been found
         if ($object = Database::fetch_object($result)) {
 
-            $objQuestion = Question::getInstance($object->type);
+            $objQuestion = Question::getInstance($object->type, null, $course_info['code']);
             if (!empty($objQuestion)) {
 
                 $objQuestion->id            = $id;
@@ -1329,14 +1329,14 @@ abstract class Question
      * @param \Exercise
      * @return \Question an instance of a Question subclass (or of Questionc class by default)
      */
-    public static function getInstance($type, Exercise $exercise = null)
+    public static function getInstance($type, Exercise $exercise = null, $course_code = null)
     {
         if (!is_null($type)) {
             list($file_name, $class_name) = self::get_question_type($type);
             if (!empty($file_name)) {
                 include_once $file_name;
                 if (class_exists($class_name)) {
-                    $obj = new $class_name();
+                    $obj = new $class_name($course_code);
                     $obj->exercise = $exercise;
                     return $obj;
                 } else {
diff --git a/main/exercice/unique_answer.class.php b/main/exercice/unique_answer.class.php
index 7313e1c412..23c44ef37d 100644
--- a/main/exercice/unique_answer.class.php
+++ b/main/exercice/unique_answer.class.php
@@ -29,10 +29,10 @@ class UniqueAnswer extends Question
     /**
      * Constructor
      */
-    public function UniqueAnswer()
+    public function UniqueAnswer($course_code = null)
     {
         //this is highly important
-        parent::question();
+        parent::question($course_code);
         $this->type      = UNIQUE_ANSWER;
         $this->isContent = $this->getIsContent();
     }
diff --git a/main/exercice/unique_answer_no_option.class.php b/main/exercice/unique_answer_no_option.class.php
index 932f3eb5e7..247fd20a58 100644
--- a/main/exercice/unique_answer_no_option.class.php
+++ b/main/exercice/unique_answer_no_option.class.php
@@ -30,9 +30,9 @@ class UniqueAnswerNoOption extends Question
 	/**
 	 * Constructor
 	 */
-	function UniqueAnswerNoOption(){
+	function UniqueAnswerNoOption($course_code = null){
 		//this is highly important
-		parent::question();
+		parent::question($course_code);
 		$this -> type = UNIQUE_ANSWER_NO_OPTION;
 		$this -> isContent = $this-> getIsContent();
 	}
diff --git a/main/inc/lib/api.lib.php b/main/inc/lib/api.lib.php
index 63f67e7e20..d9124ea367 100644
--- a/main/inc/lib/api.lib.php
+++ b/main/inc/lib/api.lib.php
@@ -1128,6 +1128,10 @@ function api_is_self_registration_allowed() {
  * @return integer the id of the current user, 0 if is empty
  */
 function api_get_user_id() {
+    if (PHP_SAPI == 'cli') {
+      // Do not try to call session on CLI.
+      return 0;
+    }
     $userInfo = Session::read('_user');
     if ($userInfo && isset($userInfo['user_id'])) {
         return $userInfo['user_id'];
@@ -2154,6 +2158,16 @@ function api_get_session_condition($session_id, $and = true, $with_base_content
  * @author Bart Mollet
  */
 function api_get_setting($variable, $key = null) {
+    if (PHP_SAPI == 'cli') {
+        // Do not use session on CLI.
+        // @todo Support key.
+        $variable_data = api_get_settings_params_simple(array("variable = '?'" => $variable));
+        if (isset($variable_data['selected_value'])) {
+            return $variable_data['selected_value'];
+        }
+        return '';
+    }
+
     $_setting = Session::read('_setting');
     if ($variable == 'header_extra_content') {
         $filename = api_get_path(SYS_PATH).api_get_home_path().'header_extra_content.txt';
diff --git a/main/inc/lib/database.constants.inc.php b/main/inc/lib/database.constants.inc.php
index fbf0992371..b802429bee 100644
--- a/main/inc/lib/database.constants.inc.php
+++ b/main/inc/lib/database.constants.inc.php
@@ -347,6 +347,7 @@ define('TABLE_GRADE_MODEL',                  'grade_model');
 define('TABLE_GRADE_MODEL_COMPONENTS',       'grade_components');
 
 // Transaction related tables
+define('TABLE_BRANCH_REL_SESSION',           'branch_rel_session');
 define('TABLE_BRANCH_SYNC',                  'branch_sync');
 define('TABLE_BRANCH_TRANSACTION',           'branch_transaction');
 define('TABLE_BRANCH_TRANSACTION_STATUS',    'branch_transaction_status');
diff --git a/src/ChamiloLMS/Command/Transaction/ImportToSystemCommand.php b/src/ChamiloLMS/Command/Transaction/ImportToSystemCommand.php
new file mode 100644
index 0000000000..82591a6f49
--- /dev/null
+++ b/src/ChamiloLMS/Command/Transaction/ImportToSystemCommand.php
@@ -0,0 +1,35 @@
+<?php
+
+namespace ChamiloLMS\Command\Transaction;
+
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+use ChamiloLMS\Transaction\TransactionLogController;
+
+class ImportToSystemCommand extends Command
+{
+    protected function configure()
+    {
+        $this
+            ->setName('tx:import-to-system')
+            ->setDescription('Imports transactions on the transaction table to the local system.')
+            ->addOption('limit', null, InputOption::VALUE_OPTIONAL, 'The maximum number of transactions to import into the system in this operation.', 10);
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output)
+    {
+        $tc = new TransactionLogController();
+        $limit = (int) $input->getOption('limit');
+        if ($limit <= 0) {
+            $limit = 10;
+        }
+        $imported_ids = $tc->importPendingToSystem($limit);
+        $output->writeln(sprintf('Imported correctly (%d) transactions to the system.', count($imported_ids['success'])));
+        if (!empty($imported_ids['fail'])) {
+            $output->writeln(sprintf('The transactions identified by the following ids failed to be imported: (%s)', implode(', ', $imported_ids['fail'])));
+            return 1;
+        }
+    }
+}
diff --git a/src/ChamiloLMS/Command/Transaction/MineduSendCommand.php b/src/ChamiloLMS/Command/Transaction/MineduSendCommand.php
new file mode 100644
index 0000000000..04baa588bc
--- /dev/null
+++ b/src/ChamiloLMS/Command/Transaction/MineduSendCommand.php
@@ -0,0 +1,56 @@
+<?php
+
+namespace ChamiloLMS\Command\Transaction;
+
+use Database;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\ArrayInput;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Output\OutputInterface;
+
+/**
+ * A customization of tx:send for specific case.
+ *
+ * Assumtions:
+ * - branch_rel_session table only contains the local branch entries.
+ * - branch_rel_session.display_order represents a "turn".
+ */
+class MineduSendCommand extends Command
+{
+    protected function configure()
+    {
+        $this
+            ->setName('minedu:send')
+            ->setDescription('Sends data using tx:send, using custom minedu logic to convert turn numbers into a course/session pair.')
+            ->addArgument('turn', InputArgument::REQUIRED, 'The turn to be used.');
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output)
+    {
+        // This is just wrong, but was requested. Used to pass a session_id to
+        // be used on the MineduAuthHttpsPostSend plugin.
+        global $session_id;
+
+        $turn = $input->getArgument('turn');
+        $branch_rel_session_table = Database::get_main_table(TABLE_BRANCH_REL_SESSION);
+        $results = Database::select('session_id', $branch_rel_session_table, array('where'=> array('display_order = ?' => array($turn))));
+        if (empty($results)) {
+            $output->writeln(sprintf('Failed to retrive a session id for the given turn "%s".', $turn));
+            return 100;
+        }
+        $row = array_shift($results);
+        $session_id = $row['session_id'];
+        $command = $this->getApplication()->find('tx:send');
+        $arguments = array(
+            'command' => 'tx:send',
+            '--session'  => $session_id,
+        );
+        $input = new ArrayInput($arguments);
+        $return_code = $command->run($input, $output);
+        if ($return_code !== 0) {
+            $output->writeln('Failed trying to send the turn information.');
+            return $return_code;
+        }
+    }
+}
diff --git a/src/ChamiloLMS/Command/Transaction/ProcessReceivedEnvelopesCommand.php b/src/ChamiloLMS/Command/Transaction/ProcessReceivedEnvelopesCommand.php
new file mode 100644
index 0000000000..49a0f26940
--- /dev/null
+++ b/src/ChamiloLMS/Command/Transaction/ProcessReceivedEnvelopesCommand.php
@@ -0,0 +1,35 @@
+<?php
+
+namespace ChamiloLMS\Command\Transaction;
+
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+use ChamiloLMS\Transaction\TransactionLogController;
+
+class ProcessReceivedEnvelopesCommand extends Command
+{
+    protected function configure()
+    {
+        $this
+            ->setName('tx:process-received-envelopes')
+            ->setDescription('Process already received envelopes to extract its transactions to the transactions table.')
+            ->addOption('limit', null, InputOption::VALUE_OPTIONAL, 'The maximum number of received envelopes to process in this operation.');
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output)
+    {
+        $tc = new TransactionLogController();
+        $limit = (int) $input->getOption('limit');
+        if ($limit <= 0) {
+            $limit = 10;
+        }
+        $imported_transaction_ids_by_envelope = $tc->importPendingEnvelopes($limit);
+        $total_transactions = 0;
+        foreach ($imported_transaction_ids_by_envelope as $envelope_id => $imported_transaction_ids) {
+            $total_transactions += count($imported_transaction_ids);
+        }
+        $output->writeln(sprintf('Imported correctly (%d) transactions from (%d) envelopes to the transactions table.', $total_transactions, count($imported_transaction_ids_by_envelope)));
+    }
+}
diff --git a/src/ChamiloLMS/Command/Transaction/ReceiveCommand.php b/src/ChamiloLMS/Command/Transaction/ReceiveCommand.php
new file mode 100644
index 0000000000..443726c0a6
--- /dev/null
+++ b/src/ChamiloLMS/Command/Transaction/ReceiveCommand.php
@@ -0,0 +1,31 @@
+<?php
+
+namespace ChamiloLMS\Command\Transaction;
+
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+use ChamiloLMS\Transaction\TransactionLogController;
+
+class ReceiveCommand extends Command
+{
+    protected function configure()
+    {
+        $this
+            ->setName('tx:receive')
+            ->setDescription('Runs local branch associated receive plugin processing envelope reception.')
+            ->addOption('limit', null, InputOption::VALUE_OPTIONAL, 'The maximum number of envelopes to receive in this operation.', 1);
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output)
+    {
+        $tc = new TransactionLogController();
+        $limit = (int) $input->getOption('limit');
+        if ($limit <= 0) {
+            $limit = 1;
+        }
+        $envelopes = $tc->receiveEnvelopeData($limit);
+        $output->writeln(sprintf('Correctly received (%d) envelopes now added to the queue.', count($envelopes)));
+    }
+}
diff --git a/src/ChamiloLMS/Command/Transaction/SendCommand.php b/src/ChamiloLMS/Command/Transaction/SendCommand.php
new file mode 100644
index 0000000000..d48b936c3d
--- /dev/null
+++ b/src/ChamiloLMS/Command/Transaction/SendCommand.php
@@ -0,0 +1,105 @@
+<?php
+
+namespace ChamiloLMS\Command\Transaction;
+
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+use ChamiloLMS\Transaction\Envelope;
+use ChamiloLMS\Transaction\TransactionLogController;
+use ChamiloLMS\Transaction\TransactionLog;
+
+/**
+ * Selects a subset of transactions, wraps and send them.
+ *
+ * It will use local branch settings.
+ */
+class SendCommand extends Command
+{
+    protected $local_branch = null;
+
+    public function __construct(string $name = null)
+    {
+        parent::__construct($name);
+        // @todo Is there a clean way/no-global to access app from here?
+        global $app;
+        $this->local_branch = $app['orm.em']->getRepository('Entity\BranchSync')->getLocalBranch();
+    }
+
+    /**
+     * @todo Let accept multiple values on options. Notice Database::select()
+     * does not allow multiple values.
+     */
+    protected function configure()
+    {
+        $this
+            ->setName('tx:send')
+            ->setDescription('Selects a subset of transactions, wraps and send them using local branch configuration.')
+            ->addOption('course', null, InputOption::VALUE_OPTIONAL, 'A course ID to select transactions.', '')
+            ->addOption('session', null, InputOption::VALUE_OPTIONAL, 'A session ID to select transactions.', '');
+    }
+
+    /**
+     * Convert input options into TransactionLogController::load() conditions.
+     *
+     * @todo Validate arguments?
+     */
+    protected function getSelectConditions(InputInterface $input)
+    {
+        $conditions = array(
+            'branch_id' => $this->local_branch->getId(),
+            'status_id' => TransactionLog::STATUS_LOCAL,
+        );
+        // Course.
+        $course_string = $input->getOption('course');
+        if (strlen($course_string) > 0) {
+            $conditions['c_id'] = $course_string;
+        }
+        // Session.
+        $session_string = $input->getOption('session');
+        if (strlen($session_string) > 0) {
+            $conditions['session_id'] = $session_string;
+        }
+        return $conditions;
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output)
+    {
+        $tc = new TransactionLogController();
+        $transactions = $tc->load($this->getSelectConditions($input));
+        if (empty($transactions)) {
+            $output->writeln('No transactions to be exported');
+            return 1;
+        }
+
+        // Export.
+        $export_result = $tc->exportTransactions($transactions);
+        if (!empty($export_result['fail'])) {
+            $fail_data = print_r($export_result['fail'], 1);
+            $output->writeln('Failed exporting some transactions:');
+            $output->writeln("$fail_data");
+            return 2;
+        }
+
+        // Create an evelope and wrap it.
+        $wrapper = TransactionLogController::createPlugin('wrapper', $this->local_branch->getPluginEnvelope(), $this->local_branch->getPluginData('wrapper'));
+        $envelope_data = array('transactions' => $transactions, 'origin_branch_id' => $this->local_branch->getId());
+        $envelope = new Envelope($wrapper, $envelope_data);
+        try {
+            $envelope->wrap();
+        }
+        catch (Exception $e) {
+            $output->writeln(sprintf('Failed wrapping the envelope: %s.', $e->getMessage()));
+            return 3;
+        }
+
+        // Finally send it.
+        $success = $tc->sendEnvelope($envelope);
+        if ($success !== TRUE) {
+            $output->writeln('There was a problem while sending the envelope.');
+            return 4;
+        }
+        $output->writeln('Envelope sent!');
+    }
+}
diff --git a/src/ChamiloLMS/Transaction/Plugin/AuthHttpsPostSend.php b/src/ChamiloLMS/Transaction/Plugin/AuthHttpsPostSend.php
index 42d62b11a2..0260e92ac9 100644
--- a/src/ChamiloLMS/Transaction/Plugin/AuthHttpsPostSend.php
+++ b/src/ChamiloLMS/Transaction/Plugin/AuthHttpsPostSend.php
@@ -71,7 +71,7 @@ class AuthHttpsPostSend implements SendPluginInterface
             throw new SendException('auth_https_post: Cannot retrieve blob from envelope.');
         }
 
-        if (!$blob_file = $this->getTemporaryFile('blob_file')) {
+        if (!$blob_file = $this->getTemporaryFileToSend('blob_file', $envelope)) {
             throw new SendException(sprintf('auth_https_post: Unable to create correctly the temporary blob file on "%s".', $blob_file));
         }
         if (file_put_contents($blob_file, $blob) === false) {
@@ -112,7 +112,7 @@ class AuthHttpsPostSend implements SendPluginInterface
      * @see SslSignedJsonWrapper.
      * @todo Unify on a common base plugin parent.
      */
-    protected function getTemporaryFile($name) {
+    protected function getTemporaryFileToSend($name, Envelope $envelope) {
       static $tmp_directory;
       if (!isset($tmp_directory)) {
           $tmp_directory = api_get_path(SYS_DATA_PATH) . 'transaction_tmp_files';
diff --git a/src/ChamiloLMS/Transaction/Plugin/MineduAuthHttpsPostSend.php b/src/ChamiloLMS/Transaction/Plugin/MineduAuthHttpsPostSend.php
new file mode 100644
index 0000000000..d181d838ef
--- /dev/null
+++ b/src/ChamiloLMS/Transaction/Plugin/MineduAuthHttpsPostSend.php
@@ -0,0 +1,45 @@
+<?php
+/* For licensing terms, see /license.txt */
+
+namespace ChamiloLMS\Transaction\Plugin;
+
+use ChamiloLMS\Transaction\Envelope;
+
+/**
+ * Customization to have an specific file name.
+ */
+class MineduAuthHttpsPostSend extends AuthHttpsPostSend
+{
+
+    /**
+     * Base name for files to send for minedu.
+     */
+    const BASE_NAME='PE_0265';
+
+    /**
+     * {@inheritdoc}
+     */
+    public static function getMachineName()
+    {
+        return 'minedu_auth_https_post';
+    }
+
+    /**
+     * A custom name for the teporary filename to send via curl.
+     * Retrieves a temporary filename.
+     */
+    protected function getTemporaryFileToSend($name, Envelope $envelope) {
+        // @fixme This is just wrong but it was requested. An Envelope nor any
+        // place from here really knows which session_id to use because an
+        // Envelope just contains a list of transactions, it does not matter if
+        // they are part of one session or multiple ones.
+        global $session_id;
+        if ($name != 'blob_file') {
+            return parent::getTemporaryFileToSend($name, $envelope);
+        }
+        // At blob_file request.
+        $stamp = str_replace(array(' ', ':', '-'), '', api_get_datetime());
+        $filename = sprintf('%s_%05d_%05d_%s_', self::BASE_NAME, $envelope->getOriginBranchId(), $session_id, $stamp);
+        return parent::getTemporaryFileToSend($filename, $envelope);
+    }
+}
diff --git a/src/ChamiloLMS/Transaction/TransactionLogController.php b/src/ChamiloLMS/Transaction/TransactionLogController.php
index 4c6c1be973..96ebff0821 100644
--- a/src/ChamiloLMS/Transaction/TransactionLogController.php
+++ b/src/ChamiloLMS/Transaction/TransactionLogController.php
@@ -166,6 +166,10 @@ class TransactionLogController
      *
      * @param integer $limit
      *   The maximum allowed envelopes to process. 0 means unlimited.
+     *
+     * @return array
+     *   An array keyed by received envelope id containing an array transaction
+     *   ids added based on that received envelope.
      */
     public static function importPendingEnvelopes($limit = 0) {
         $table = Database::get_main_table(TABLE_RECEIVED_ENVELOPES);
@@ -177,6 +181,7 @@ class TransactionLogController
         else {
             $sql = sprintf('SELECT * FROM %s WHERE status = %d LIMIT %d', $table, Envelope::RECEIVED_TO_BE_IMPORTED, $limit);
         }
+        $added_transaction_ids_per_envelope = array();
         $result = Database::query($sql);
         while ($row = $result->fetch()) {
             try {
@@ -187,7 +192,8 @@ class TransactionLogController
                 $envelope = new Envelope($wrapper_plugin, $envelope_data);
                 $envelope->unwrap();
                 $transactions = $envelope->getTransactions();
-                $this->importToLog($transactions);
+                $added_transaction_ids = $this->importToLog($transactions);
+                $added_transaction_ids_per_envelope[$row['id']] = $added_transaction_ids;
                 Database::update($table, array('status' => Envelope::RECEIVED_IMPORTED), array('id = ?' => $row['id']));
             }
             catch (Exception $exception) {
@@ -196,6 +202,8 @@ class TransactionLogController
                 continue;
             }
         }
+
+        return $added_transaction_ids_per_envelope;
     }
 
 
@@ -420,6 +428,7 @@ class TransactionLogController
             'send' => array(
                 'none' => 'NoneSendPlugin',
                 'auth_https_post' => 'AuthHttpsPostSend',
+                'minedu_auth_https_post' => 'MineduAuthHttpsPostSend',
             ),
             'receive' => array(
                 'none' => 'NoneReceivePlugin',