Removing all validation on submit I have a multistep form with two submit handlers (save/submit), when "Save" is clicked I want to remove any validation applied to the node and have it's contents saved.

In my custom validation hook I am checking both the triggering_element and clicked_button for the correct button, I'm then removing  limit_validation_errors however this doesn't work. According to the api documentation it should though.

function test_workflow_form_validate($form, &amp;$form_state) {
  if ($form['#form_id'] != 'test_application_assessment_form') {
    if ($form_state['triggering_element']['#value'] == 'Save') {
      $form_state['triggering_element']['#limit_validation_errors'] = array();
      $form_state['clicked_button']['#limit_validation_errors'] = array();

      $form_state['buttons'][1]['#limit_validation_errors'] = array();
      // Remove validation.
    }
    else {
      // Add in default validation.
      //$node = (object) $form_state['values'];
      //node_validate($node, $form, $form_state);
      //entity_form_field_validate('node', $form, $form_state);
    }
  }
}


I've removed the default node validation so my custom one is the only one present. Is there something else I'm missing?
Your '#limit_validation_errors' may be set when the form gets built, not when it's processed.

Hence in your custom *_form() function or a hook_form_alter(); not in *_validation() or *_submit().