diff --git a/sources/content/src/Plugin/tmgmt/Source/ContentEntitySource.php b/sources/content/src/Plugin/tmgmt/Source/ContentEntitySource.php
index ff98065..b3b054f 100644
--- a/sources/content/src/Plugin/tmgmt/Source/ContentEntitySource.php
+++ b/sources/content/src/Plugin/tmgmt/Source/ContentEntitySource.php
@@ -11,6 +11,7 @@ use Drupal\Core\Entity\ContentEntityInterface;
 use Drupal\Core\Entity\Plugin\DataType\EntityReference;
 use Drupal\Core\Field\FieldDefinitionInterface;
 use Drupal\Core\Field\FieldItemInterface;
+use Drupal\Core\Field\Plugin\Field\FieldType\StringItem;
 use Drupal\Core\TypedData\OptionsProviderInterface;
 use Drupal\Core\TypedData\Type\StringInterface;
 use Drupal\Core\TypedData\PrimitiveInterface;
@@ -124,6 +125,11 @@ class ContentEntitySource extends SourcePluginBase {
             '#text' => $property->getValue(),
             '#translate' => $translate,
           );
+          if ($translate) {
+            if ($field_item instanceof StringItem) {
+              $data[$key][$index][$property_key]['#max_length'] = $field_item->defaultStorageSettings()['max_length'];
+            }
+          }
 
           if ($property_definition->getDataType() == 'filter_format') {
             $format = $property->getValue();
diff --git a/src/Form/JobItemForm.php b/src/Form/JobItemForm.php
index b40681e..309975e 100644
--- a/src/Form/JobItemForm.php
+++ b/src/Form/JobItemForm.php
@@ -7,11 +7,11 @@
 
 namespace Drupal\tmgmt\Form;
 
+use Drupal\Component\Render\FormattableMarkup;
 use Drupal\Component\Utility\NestedArray;
 use Drupal\Component\Utility\Html;
 use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Component\Utility\Xss;
-use Drupal\Core\Url;
 use Drupal\tmgmt\Entity\JobItem;
 use Drupal\tmgmt\JobItemInterface;
 use Drupal\tmgmt\TranslatorRejectDataInterface;
@@ -172,6 +172,25 @@ class JobItemForm extends TmgmtFormBase {
   }
 
   /**
+   * Gets the translatable fields of a given job item.
+   *
+   * @param JobItemInterface $item
+   *   The job item.
+   *
+   * @return array $fields
+   *   Returns the translatable fields of the job item.
+   */
+  private function getTranslatableFields(JobItemInterface $item) {
+    $fields = [];
+    foreach ($item->getData() as $key => $value) {
+      if (isset($value[0]['value']['#translate']) && $value[0]['value']['#translate']) {
+        $fields[$key] = $value;
+      }
+    }
+    return $fields;
+  }
+
+  /**
    * Gets the parent key given the parent array and the key of the child.
    *
    * @param string $name
@@ -196,6 +215,7 @@ class JobItemForm extends TmgmtFormBase {
    */
   public function validateForm(array &$form, FormStateInterface $form_state) {
     parent::validateForm($form, $form_state);
+    /** @var JobItem $item */
     $item = $this->buildEntity($form, $form_state);
     // First invoke the validation method on the source controller.
     $source_ui = $this->sourceManager->createUIInstance($item->getPlugin());
@@ -205,12 +225,30 @@ class JobItemForm extends TmgmtFormBase {
       $translator_ui = $this->translatorManager->createUIInstance($item->getTranslator()->getPluginId());
       $translator_ui->reviewFormValidate($form, $form_state, $item);
     }
+
+    $translatable_fields = $this->getTranslatableFields($item);
     foreach ($form_state->getValues() as $key => $value) {
-      if (is_array($value) && isset($value['translation'])) {
-        // If there is an empty field then sets and error to fill it.
-        if (($value['translation'] == '') && ($value['source'] != '') && ($form_state->getTriggeringElement()['#value'] != 'Validate HTML tags')) {
-          $parent_key = $this->getParentKey($key, $form['review']);
-          $form_state->setError($form['review'][$parent_key][$key]['translation'], $this->t('The field is empty'));
+      $parent_key = $this->getParentKey($key, $form['review']);
+      if (array_key_exists($parent_key, $translatable_fields) && ($form_state->getTriggeringElement()['#value'] != 'Validate HTML tags')) {
+        // If has HTML tags will be an array.
+        if (is_array($value['translation'])) {
+          $label = $value['translation']['value'];
+        }
+        else {
+          $label = $value['translation'];
+        }
+
+        // Validate that is not empty.
+        if (empty($label)) {
+          $form_state->setError($form['review'][$parent_key][$key]['translation'], $this->t('The field is empty.'));
+          continue;
+        }
+
+        // Validate that is not longer than the max length.
+        if (isset($translatable_fields[$parent_key][0]['value']['#max_length'])
+          && ($translatable_fields[$parent_key][0]['value']['#max_length'] < strlen($label))) {
+          $form_state->setError($form['review'][$parent_key][$key]['translation'],
+            $this->t('The field has more than :size characters.', array(':size' => $translatable_fields[$parent_key][0]['value']['#max_length'])));
         }
       }
     }
diff --git a/src/Tests/TMGMTUiTest.php b/src/Tests/TMGMTUiTest.php
index f20c7f4..8cf689a 100644
--- a/src/Tests/TMGMTUiTest.php
+++ b/src/Tests/TMGMTUiTest.php
@@ -498,23 +498,46 @@ class TMGMTUiTest extends TMGMTTestBase {
     // Tests that there is always a title.
     \Drupal::state()->set('tmgmt.test_source_data', array(
       'title' => array(
-        '0|value' => array(
-          '#text' => '<p><em><strong>Source text bold and Italic</strong></em></p>',
-          '#label' => 'Title',
+        array(
+          'value' => array(
+            '#text' => '<p><em><strong>Source text bold and Italic</strong></em></p>',
+            '#label' => 'Title',
+            '#translate' => TRUE,
+          ),
         ),
       ),
       'body' => array(
         'deep_nesting' => array(
           '#text' => '<p><em><strong>Source body bold and Italic</strong></em></p>',
           '#label' => 'Body',
-        )
+          '#translate' => TRUE,
+        ),
       ),
     ));
     $item5 = $job->addItem('test_source', 'test', 4);
 
-    $this->drupalGet('admin/tmgmt/items/' . $item5->id());
-    $this->drupalPostForm(NULL, [], t('Save'));
-    $this->assertText(t('The field is empty'));
+    $this->drupalPostForm('admin/tmgmt/items/' . $item5->id(), [], t('Save'));
+    $this->assertText(t('The field is empty.'));
+
+    // Tests field is less than max_length.
+    \Drupal::state()->set('tmgmt.test_source_data', array(
+      'title' => array(
+        array(
+          'value' => array(
+            '#text' => '<p><em><strong>Source text bold and Italic</strong></em></p>',
+            '#label' => 'Title',
+            '#translate' => TRUE,
+            '#max_length' => 10,
+          ),
+        ),
+      ),
+    ));
+    $item5 = $job->addItem('test_source', 'test', 4);
+
+    $this->drupalPostForm('admin/tmgmt/items/' . $item5->id(), [
+      'title|0|value[translation]' => '<p><em><strong>Source text bold and Italic</strong></em></p>',
+    ], t('Save'));
+    $this->assertText(t('The field has more than :size characters.', array(':size' => 10)));
 
     // Test for the text with format set.
     \Drupal::state()->set('tmgmt.test_source_data', array(
diff --git a/tmgmt_test/src/Plugin/tmgmt/Source/TestSource.php b/tmgmt_test/src/Plugin/tmgmt/Source/TestSource.php
index e2e1227..eee578c 100644
--- a/tmgmt_test/src/Plugin/tmgmt/Source/TestSource.php
+++ b/tmgmt_test/src/Plugin/tmgmt/Source/TestSource.php
@@ -67,6 +67,7 @@ class TestSource extends SourcePluginBase {
         'deep_nesting' => array(
           '#text' => 'Text for job item with type @type and id @id.',
           '#label' => 'Label for job item with type @type and id @id.',
+          '#translate' => TRUE,
         ),
       ),
     ));