diff --git a/sources/content/src/Plugin/tmgmt/Source/ContentEntitySource.php b/sources/content/src/Plugin/tmgmt/Source/ContentEntitySource.php
index ff98065..2697684 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 +125,9 @@ class ContentEntitySource extends SourcePluginBase {
             '#text' => $property->getValue(),
             '#translate' => $translate,
           );
+          if ($translate) {
+            $data[$key][$index][$property_key]['#max_length'] = $field_item->getFieldDefinition()->getFieldStorageDefinition()->getSetting('max_length');
+          }
 
           if ($property_definition->getDataType() == 'filter_format') {
             $format = $property->getValue();
diff --git a/sources/content/src/Tests/ContentEntitySourceUnitTest.php b/sources/content/src/Tests/ContentEntitySourceUnitTest.php
index fe66880..3093ced 100644
--- a/sources/content/src/Tests/ContentEntitySourceUnitTest.php
+++ b/sources/content/src/Tests/ContentEntitySourceUnitTest.php
@@ -9,12 +9,12 @@ namespace Drupal\tmgmt_content\Tests;
 
 use Drupal\Core\Field\FieldStorageDefinitionInterface;
 use Drupal\Core\Language\LanguageInterface;
-use Drupal\entity_test\Entity\EntityTestMul;
 use Drupal\field\Entity\FieldConfig;
 use Drupal\field\Entity\FieldStorageConfig;
 use Drupal\language\Entity\ConfigurableLanguage;
 use Drupal\node\Entity\Node;
 use Drupal\system\Tests\Entity\EntityUnitTestBase;
+use Drupal\tmgmt\Entity\JobItem;
 use Drupal\tmgmt\Entity\Translator;
 use Drupal\tmgmt\JobItemInterface;
 
@@ -30,7 +30,20 @@ class ContentEntitySourceUnitTest extends EntityUnitTestBase {
    *
    * @var array
    */
-  public static $modules = array('tmgmt', 'tmgmt_content', 'tmgmt_test', 'node', 'filter', 'file', 'image', 'language', 'content_translation', 'options', 'entity_reference');
+  public static $modules = [
+    'tmgmt',
+    'tmgmt_content',
+    'tmgmt_test',
+    'node',
+    'field',
+    'filter',
+    'file',
+    'image',
+    'language',
+    'content_translation',
+    'options',
+    'entity_reference'
+  ];
 
   protected $entityTypeId = 'entity_test_mul';
 
@@ -364,7 +377,7 @@ class ContentEntitySourceUnitTest extends EntityUnitTestBase {
    */
   protected function drupalCreateContentType($settings = array()) {
     $name = strtolower($this->randomMachineName(8));
-    $values = array(
+    $settings += [
       'type' => $name,
       'name' => $name,
       'base' => 'node_content',
@@ -372,9 +385,9 @@ class ContentEntitySourceUnitTest extends EntityUnitTestBase {
       'body_label' => 'Body',
       'has_title' => 1,
       'has_body' => 1,
-    );
+    ];
 
-    $type = entity_create('node_type', $values);
+    $type = entity_create('node_type', $settings);
     $saved = $type->save();
     node_add_body_field($type);
 
@@ -483,4 +496,70 @@ class ContentEntitySourceUnitTest extends EntityUnitTestBase {
 
   }
 
+  /**
+   * Test translating a field with a max_length set.
+   */
+  public function testMaxLength() {
+    $account = $this->createUser();
+    $type = $this->drupalCreateContentType();
+
+    // Create a field with max_length of 15.
+    $field_storage = FieldStorageConfig::create([
+      'field_name' => 'max_length_field',
+      'type' => 'string',
+      'entity_type' => 'node',
+    ]);
+    $field_storage->setTranslatable(TRUE);
+    $field_storage->setSetting('max_length', 15);
+    $field_storage->save();
+
+    $field = FieldConfig::create([
+      'field_storage' => $field_storage,
+      'field_name' => 'max_length_field',
+      'entity_type' => 'node',
+      'bundle' => $type->id(),
+    ]);
+    $field->save();
+
+    // Create a node with that field.
+    $node = \Drupal::entityManager()
+      ->getStorage('node')
+      ->create([
+        'title' => $this->randomMachineName(),
+        'uid' => $account->id(),
+        'type' => $type->id(),
+        'langcode' => 'en',
+        'max_length_field' => $this->randomString(15),
+      ]);
+    $node->save();
+
+    $job = tmgmt_job_create('en', 'de');
+    $job->translator = 'test_translator';
+    $job->save();
+    $job_item = tmgmt_job_item_create('content', 'node', $node->id(), array('tjid' => $job->id()));
+    $job_item->save();
+
+    // Test if the #max_length value is set in the item data.
+    $data = $job_item->getSourcePlugin()->getData($job_item);
+    $this->assertEqual($data['max_length_field'][0]['value']['#max_length'], 15);
+
+    $job->requestTranslation();
+    $items = $job->getItems();
+    /** @var JobItem $item */
+    $item = reset($items);
+
+    // The acceptTranslation will fail as the translation from testTranslator
+    // will have 3 extra characters.
+    try {
+      $item->acceptTranslation();
+      $this->fail('Translation was accepted');
+    }
+    catch (\Exception $e) {
+      $this->pass('Could not accept the translation');
+    }
+
+    // The JobItem state should still be review.
+    $this->assertEqual($item->getState(), JobItem::STATE_REVIEW, 'JobItem state is Review');
+  }
+
 }
diff --git a/src/Form/JobItemForm.php b/src/Form/JobItemForm.php
index 2ad5c2a..c3cc1b3 100644
--- a/src/Form/JobItemForm.php
+++ b/src/Form/JobItemForm.php
@@ -11,7 +11,6 @@ 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;
@@ -159,7 +158,8 @@ class JobItemForm extends TmgmtFormBase {
     $actions['validate'] = array(
       '#type' => 'submit',
       '#value' => t('Validate HTML tags'),
-      '#submit' => array('::submitForm', '::validateTags'),
+      '#validate' => ['::validateTags'],
+      '#submit' => array('::submitForm'),
     );
     $url = $item->getJob()->url();
     $url = isset($_GET['destination']) ? $_GET['destination'] : $url;
@@ -172,23 +172,23 @@ class JobItemForm extends TmgmtFormBase {
   }
 
   /**
-   * Gets the parent key given the parent array and the key of the child.
+   * Gets the translatable fields of a given job item.
    *
-   * @param string $name
-   *   String containing the child's key.
-   * @param array $parent_array
-   *   Array containing the elements of the parent.
+   * @param array $form
+   *   The form array.
    *
-   * @return string $key
-   *   Returns the parent key.
+   * @return array $fields
+   *   Returns the translatable fields of the job item.
    */
-  private function getParentKey($name, array $parent_array) {
-    foreach ($parent_array as $key => $value) {
-      if (is_array($value) && isset($value[$name])) {
-        return $key;
+  private function getTranslatableFields(array $form) {
+    $fields = [];
+    foreach ($form['review'] as $parent_key => $value) {
+      $key = $parent_key . '|0|value';
+      if (isset($value[$key]['translation'])) {
+        $fields[$parent_key] = $value;
       }
     }
-    return NULL;
+    return $fields;
   }
 
   /**
@@ -196,6 +196,7 @@ 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());
@@ -205,18 +206,46 @@ class JobItemForm extends TmgmtFormBase {
       $translator_ui = $this->translatorManager->createUIInstance($item->getTranslator()->getPluginId());
       $translator_ui->reviewFormValidate($form, $form_state, $item);
     }
-    foreach ($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'], $this->t('The field is empty'));
-        }
+
+    foreach ($this->getTranslatableFields($form) as $parent_key => $value) {
+      $key = $parent_key . '|0|value';
+      // If has HTML tags will be an array.
+      if (isset($value[$key]['translation']['value'])) {
+        $label = $value[$key]['translation']['value']['#value'];
+      }
+      else {
+        $label = $value[$key]['translation']['#value'];
+      }
+
+      // 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.
+   *
+   * @param array $element
+   *   The input element to validate.
+   * @param \Drupal\Core\Form\FormStateInterface $form_state
+   *   The form state.
+   */
+  public function validateMaxLength(array $element, FormStateInterface &$form_state) {
+    if (isset($element['#max_length'])
+      && ($element['#max_length'] < strlen($element['#value']))) {
+      $form_state->setError($element,
+        $this->t('The field has :size characters while the limit is :limit.', [
+          ':size' => strlen($element['#value']),
+          ':limit' => $element['#max_length'],
+        ])
+      );
+    }
+  }
+
+  /**
    * Overrides Drupal\Core\Entity\EntityForm::save().
    */
   public function save(array $form, FormStateInterface $form_state) {
@@ -431,6 +460,10 @@ class JobItemForm extends TmgmtFormBase {
             '#disabled' => $job_item->isAccepted(),
             '#rows' => $rows,
           );
+          if (!empty($data[$key]['#max_length'])) {
+            $form[$target_key]['translation']['#max_length'] = $data[$key]['#max_length'];
+            $form[$target_key]['translation']['#element_validate'] = ['::validateMaxLength'];
+          }
         }
 
         if (!empty($data[$key]['#format']) && \Drupal::config('tmgmt.settings')->get('respect_text_format') == '1') {
diff --git a/src/Tests/TMGMTUiTest.php b/src/Tests/TMGMTUiTest.php
index 6ddb34b..7479451 100644
--- a/src/Tests/TMGMTUiTest.php
+++ b/src/Tests/TMGMTUiTest.php
@@ -496,25 +496,52 @@ class TMGMTUiTest extends TMGMTTestBase {
     $this->assertText(t('HTML tag validation failed for 2 field(s).'));
 
     // 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',
-        ),
-      ),
-      'body' => array(
-        'deep_nesting' => array(
-          '#text' => '<p><em><strong>Source body bold and Italic</strong></em></p>',
+    $label = '<p><em><strong>Source text bold and Italic</strong></em></p>';
+    \Drupal::state()->set('tmgmt.test_source_data', [
+      'title' => [
+        [
+          'value' => [
+            '#text' => $label,
+            '#label' => 'Title',
+            '#translate' => TRUE,
+          ],
+        ],
+      ],
+      'body' => [
+        'deep_nesting' => [
+          '#text' => $label,
           '#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', [
+      'title' => [
+        [
+          'value' => [
+            '#text' => $label,
+            '#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]' => $label,
+    ], t('Save'));
+    $this->assertText(t('The field has :size characters while the limit is :limit.', [
+      ':size' => strlen($label),
+      ':limit' => 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,
         ),
       ),
     ));