diff -u b/src/Entity/Translator.php b/src/Entity/Translator.php
--- b/src/Entity/Translator.php
+++ b/src/Entity/Translator.php
@@ -300,7 +300,7 @@
     if ($controller = $this->getPlugin()) {
       return $controller->canTranslate($this, $job);
     }
-    return FALSE;
+    return new TMGMTResponse(FALSE);
   }
 
   /**
@@ -310,7 +310,11 @@
     if ($controller = $this->getPlugin()) {
       return $controller->isAvailable($this);
     }
-    return new TMGMTResponse(FALSE, t('@translator is not available. Make sure it is properly !configured.'), array('@translator' => $this->label(), '!configured' => $this->link(t('configured'))));
+    return new TMGMTResponse(FALSE, t('@translator is not available. Make sure it is properly !configured.'), [
+      '@translator' => $this->label(),
+      '!configured' => $this->link(t('configured')
+      )
+    ]);
   }
 
   /**
@@ -323,18 +327,6 @@
     return FALSE;
   }
 
-
-
-  /**
-   * {@inheritdoc}
-   */
-  public function getNotCanTranslateReason(JobInterface $job) {
-    if ($controller = $this->getPlugin()) {
-      return $controller->getNotCanTranslateReason($job);
-    }
-    return FALSE;
-  }
-
   /**
    * {@inheritdoc}
    */
diff -u b/src/Form/JobForm.php b/src/Form/JobForm.php
--- b/src/Form/JobForm.php
+++ b/src/Form/JobForm.php
@@ -427,8 +427,8 @@
        // $result = new TMGMTResponse(FALSE, t('@translator is not available. Make sure it is properly !configured.'), array('@translator' => $translator->label(), '!configured' => $translator->link(t('configured'))));
         $form_state->setErrorByName('translator', $result->getMessage());
       }
-      elseif (!$translator->canTranslate($job)) {
-        $form_state->setErrorByName('translator', $translator->getNotCanTranslateReason($job));
+      elseif (!$translator->canTranslate($job)->getSuccess()) {
+        $form_state->setErrorByName('translator', $translator->canTranslate($job)->getMessage());
       }
     }
   }
@@ -505,8 +505,8 @@
       $form['#description'] = Xss::filter($result->getMessage());
     }
     // @todo: if the target language is not defined, the check will not work if the first language in the list is not available.
-    elseif ($job->getTargetLangcode() && !$translator->canTranslate($job)) {
-      $form['#description'] = Xss::filter($job->getTranslator()->getNotCanTranslateReason($job));
+    elseif ($job->getTargetLangcode() && !$translator->canTranslate($job)->getSuccess()) {
+      $form['#description'] = Xss::filter($job->getTranslator()->canTranslate($job)->getMessage());
     }
     else {
       $plugin_ui = $this->translatorManager->createUIInstance($translator->getPluginId());
diff -u b/src/TranslatorInterface.php b/src/TranslatorInterface.php
--- b/src/TranslatorInterface.php
+++ b/src/TranslatorInterface.php
@@ -132,7 +132,7 @@
    * @param \Drupal\tmgmt\JobInterface Job
    *   The Job entity that should be translated.
    *
-   * @return bool
+   * @return TMGMTResponse
    *   TRUE if the job can be processed and translated, FALSE otherwise.
    */
   public function canTranslate(JobInterface $job);
@@ -154,14 +154,6 @@
   public function hasCheckoutSettings(JobInterface $job);
 
   /**
-   * @todo Remove this once http://drupal.org/node/1420364 is done.
-   *
-   * * @param \Drupal\tmgmt\JobInterface $job
-   *   The Job entity that should be translated.
-   */
-  public function getNotCanTranslateReason(JobInterface $job);
-
-  /**
    * Maps local language to remote language.
    *
    * @param string $language
diff -u b/src/TranslatorPluginBase.php b/src/TranslatorPluginBase.php
--- b/src/TranslatorPluginBase.php
+++ b/src/TranslatorPluginBase.php
@@ -54,7 +54,7 @@
       // one of the supported languages.
       return new TMGMTResponse(TRUE);
     }
-    return FALSE;
+    return new TMGMTResponse(FALSE, t('@translator can not translate because is not available', array('@translator' => $translator->label())));
   }
 
   /**
@@ -169,14 +169,6 @@
   /**
    * {@inheritdoc}
    */
-  public function getNotCanTranslateReason(JobInterface $job) {
-    return t('@translator can not translate from @source to @target.', array('@translator' => $job->getTranslator()->label(), '@source' => $job->getSourceLanguage()->getName(), '@target' => $job->getTargetLanguage()->getName()));
-  }
-
-
-  /**
-   * {@inheritdoc}
-   */
   public function defaultSettings() {
     $defaults = array('auto_accept' => FALSE);
     // Check if any default settings are defined in the plugin info.
diff -u b/src/TranslatorPluginInterface.php b/src/TranslatorPluginInterface.php
--- b/src/TranslatorPluginInterface.php
+++ b/src/TranslatorPluginInterface.php
@@ -37,25 +37,12 @@
    * @param \Drupal\tmgmt\JobInterface $job
    *   The Job entity that should be translated.
    *
-   * @return boolean
+   * @return TMGMTResponse
    *   TRUE if the job can be processed and translated, FALSE otherwise.
    */
   public function canTranslate(TranslatorInterface $translator, JobInterface $job);
 
   /**
-   * Return a reason why the translator is not able to translate this job.
-   *
-   * @param \Drupal\tmgmt\JobInterface $job
-   *   The job entity.
-   *
-   * Might be called when canTranslate() returns FALSE to get a reason that
-   * can be displayed to the user.
-   *
-   * @todo Remove this once http://drupal.org/node/1420364 is done.
-   */
-  public function getNotCanTranslateReason(JobInterface $job);
-
-  /**
    * Specifies default mappings for local to remote language codes.
    *
    * This method can be used in case we know in advance what language codes are
diff -u b/tmgmt.module b/tmgmt.module
--- b/tmgmt.module
+++ b/tmgmt.module
@@ -391,7 +391,7 @@
 function tmgmt_translator_load_available($job) {
   $translators = Translator::loadMultiple();
   foreach ($translators as $name => $translator) {
-    if (!$translator->isAvailable()->getSuccess() || (isset($job) && !$translator->canTranslate($job))) {
+    if (!$translator->isAvailable()->getSuccess() || (isset($job) && !$translator->canTranslate($job)->getSuccess())) {
       unset($translators[$name]);
     }
   }
@@ -471,7 +471,7 @@
     if (!$translator->isAvailable()->getSuccess()) {
       $labels[$translator->id()] = t('@label (not available)', array('@label' => $translator->label()));
     }
-    elseif (isset($job) && !$translator->canTranslate($job)) {
+    elseif (isset($job) && !$translator->canTranslate($job)->getSuccess()) {
       $labels[$translator->id()] = t('@label (unsupported)', array('@label' => $translator->label()));
     }
     else {
only in patch2:
unchanged:
--- a/src/Entity/Job.php
+++ b/src/Entity/Job.php
@@ -18,6 +18,7 @@ use Drupal\Core\Session\AccountInterface;
 use Drupal\tmgmt\JobInterface;
 use Drupal\tmgmt\JobItemInterface;
 use Drupal\tmgmt\TMGMTException;
+use Drupal\tmgmt\TMGMTResponse;
 use Drupal\user\EntityOwnerInterface;
 use Drupal\user\UserInterface;
 
@@ -494,10 +495,10 @@ class Job extends ContentEntityBase implements EntityOwnerInterface, JobInterfac
   public function canRequestTranslation() {
     if ($translator = $this->getTranslator()) {
       if ($translator->canTranslate($this)) {
-        return TRUE;
+        return new TMGMTResponse(TRUE);
       }
     }
-    return FALSE;
+    return new TMGMTResponse(FALSE, t('Translation cant be requested'));
   }
 
   /**
only in patch2:
unchanged:
--- a/tmgmt_test/src/Plugin/tmgmt/Translator/TestTranslator.php
+++ b/tmgmt_test/src/Plugin/tmgmt/Translator/TestTranslator.php
@@ -11,6 +11,7 @@ use Drupal\Core\Form\FormStateInterface;
 use Drupal\tmgmt\Entity\Translator;
 use Drupal\tmgmt\JobInterface;
 use Drupal\tmgmt\JobItemInterface;
+use Drupal\tmgmt\TMGMTResponse;
 use Drupal\tmgmt\TranslatorInterface;
 use Drupal\tmgmt\TranslatorPluginBase;
 use Drupal\tmgmt\TranslatorRejectDataInterface;
@@ -99,7 +100,11 @@ class TestTranslator extends TranslatorPluginBase implements TranslatorRejectDat
    */
   function canTranslate(TranslatorInterface $translator, JobInterface $job) {
     if ($job->getSetting('action') == 'not_translatable') {
-      return FALSE;
+      return new TMGMTResponse(FALSE, t('@translator can not translate from @source to @target.', array(
+        '@translator' => $job->getTranslator()->label(),
+        '@source' => $job->getSourceLanguage()->getName(),
+        '@target' => $job->getTargetLanguage()->getName()
+      )));
     }
     return parent::canTranslate($translator, $job);
   }
only in patch2:
unchanged:
--- a/translators/tmgmt_file/src/Plugin/tmgmt/Translator/FileTranslator.php
+++ b/translators/tmgmt_file/src/Plugin/tmgmt/Translator/FileTranslator.php
@@ -8,6 +8,7 @@
 namespace Drupal\tmgmt_file\Plugin\tmgmt\Translator;
 
 use Drupal\tmgmt\JobInterface;
+use Drupal\tmgmt\TMGMTResponse;
 use Drupal\tmgmt\TranslatorInterface;
 use Drupal\tmgmt\TranslatorPluginBase;
 
@@ -28,7 +29,7 @@ class FileTranslator extends TranslatorPluginBase {
    */
   public function canTranslate(TranslatorInterface $translator, JobInterface $job) {
     // Anything can be exported.
-    return TRUE;
+    return new TMGMTResponse(TRUE);
   }
 
   /**