diff --git a/CRM/I3val/Handler/SddUpdate.php b/CRM/I3val/Handler/SddUpdate.php
index d763972..1820fdf 100644
--- a/CRM/I3val/Handler/SddUpdate.php
+++ b/CRM/I3val/Handler/SddUpdate.php
@@ -38,6 +38,7 @@ public function getField2Label() {
                                   'end_date'        => E::ts('End Date'),
                                   'frequency'       => E::ts('Frequency'),
                                   'cycle_day'       => E::ts('Cycle Day'),
+                                  'reason'          => E::ts('Reason'),
                                   'financial_type'  => E::ts('Financial Type'),
                                   'campaign'        => E::ts('Campaign'),
                                   'amount'          => E::ts('Amount'),
@@ -398,7 +399,7 @@ public function generateDiffData($entity, $submitted_data, &$activity_data) {
     }
 
     // OK, we have the mandate, look for differences
-    $mandate_diff       = array();
+    $mandate_diff      = array();
     $main_attributes   = $this->getMainFields();
     $all_attributes    = $this->getFields();
     $custom_group_name = $this->getCustomGroupName();
diff --git a/Civi/I3val/ActionProvider/Action/RequestContactUpdate.php b/Civi/I3val/ActionProvider/Action/RequestContactUpdate.php
index 4afe237..7f0d086 100644
--- a/Civi/I3val/ActionProvider/Action/RequestContactUpdate.php
+++ b/Civi/I3val/ActionProvider/Action/RequestContactUpdate.php
@@ -32,19 +32,12 @@ class RequestContactUpdate extends AbstractAction {
    * @return SpecificationBag specs
    */
   public function getConfigurationSpecification() {
-    // load activity types
-    $activity_types = ['' => E::ts("none")];
-    $types = \civicrm_api3('OptionValue', 'get', [
-        'option.limit'    => 0,
-        'option_group_id' => 'activity_type',
-        'return'          => 'value,label']);
-    foreach ($types['values'] as $type) {
-      $types[$type['value']] = $type['label'];
-    }
+    // get the current configuration
+    $configuration = \CRM_I3val_Configuration::getConfiguration();
 
     // specify config
     return new SpecificationBag([
-        new Specification('activity_type_id', 'Integer', E::ts('Default Activity Type'), false, null, null, $activity_types, false),
+        new Specification('activity_type_id', 'Integer', E::ts('Default Activity Type'), false, null, null, $configuration->getActivityTypes(), false),
     ]);
   }
 
diff --git a/Civi/I3val/ActionProvider/Action/RequestMandateUpdate.php b/Civi/I3val/ActionProvider/Action/RequestMandateUpdate.php
new file mode 100644
index 0000000..7592485
--- /dev/null
+++ b/Civi/I3val/ActionProvider/Action/RequestMandateUpdate.php
@@ -0,0 +1,115 @@
+<?php
+/*-------------------------------------------------------+
+| Ilja's Input Validation Extension                      |
+| Amnesty International Vlaanderen                       |
+| Copyright (C) 2017-2020 SYSTOPIA                       |
+| Author: B. Endres (endres@systopia.de)                 |
+| http://www.systopia.de/                                |
++--------------------------------------------------------+
+| This program is released as free software under the    |
+| Affero GPL license. You can redistribute it and/or     |
+| modify it under the terms of this license which you    |
+| can read by viewing the included agpl.txt or online    |
+| at www.gnu.org/licenses/agpl.html. Removal of this     |
+| copyright header is strictly prohibited without        |
+| written permission from the original author(s).        |
++--------------------------------------------------------*/
+
+namespace Civi\I3val\ActionProvider\Action;
+
+use CRM_I3val_ExtensionUtil as E;
+
+use \Civi\ActionProvider\Action\AbstractAction;
+use \Civi\ActionProvider\Parameter\ParameterBagInterface;
+use \Civi\ActionProvider\Parameter\Specification;
+use \Civi\ActionProvider\Parameter\SpecificationBag;
+
+class RequestMandateUpdate extends AbstractAction {
+
+  /**
+   * Returns the specification of the configuration options for the actual action.
+   * @return SpecificationBag specs
+   */
+  public function getConfigurationSpecification() {
+    // get the current configuration
+    $configuration = \CRM_I3val_Configuration::getConfiguration();
+
+    // allowed status requests
+    $requested_status = [
+        ''         => E::ts("No Status Change"),
+        'COMPLETE' => E::ts("Terminate Mandate (COMPLETE)"),
+        'INVALID'  => E::ts("Mark Mandate as Invalid (INVALID)"),
+    ];
+
+    // specify config
+    return new SpecificationBag([
+        new Specification('activity_type_id', 'Integer', E::ts('Default Activity Type'), false, null, null, $configuration->getActivityTypes(), false),
+        new Specification('i3val_note', 'String', E::ts('Note'), false, null, null, $activity_types, false),
+        new Specification('status', 'String', E::ts('Requested Status'), false, null, null, $requested_status, false),
+    ]);
+  }
+
+  /**
+   * Returns the specification of the parameters of the actual action.
+   *
+   * @return SpecificationBag specs
+   */
+  public function getParameterSpecification() {
+    $specs = [];
+
+    // add metadata
+    $specs[] = new Specification('activity_type_id', 'Integer', E::ts('Activity Type'), false, null, null, null, false);
+    $specs[] = new Specification('id', 'Integer', E::ts('Contact ID'), false, null, null, null, false);
+    $specs[] = new Specification('i3val_note', 'String', E::ts('Note'), false, null, null, null, false);
+    $specs[] = new Specification('i3val_schedule_date', 'String', E::ts('Requested Change Date'), false, null, null, null, false);
+    $specs[] = new Specification('i3val_parent_id', 'Integer', E::ts('Linked Activity ID'), false, null, null, null, false);
+    $specs[] = new Specification('source', 'String', E::ts('Source'), false, null, null, null, false);
+    $specs[] = new Specification('sdd_reason', 'String', E::ts('Cancel Reason'), false, null, null, null, false);
+
+    // add mandate identifier
+    $specs[] = new Specification('reference', 'String', E::ts('Mandate Reference'), true, null, null, null, false);
+
+    // basic fields
+    $specs[] = new Specification('status', 'String', E::ts('Status'), false, null, null, null, false);
+    $specs[] = new Specification('iban', 'String', E::ts('IBAN'), false, null, null, null, false);
+    $specs[] = new Specification('bic', 'String', E::ts('BIC'), false, null, null, null, false);
+
+    // add date fields
+    $specs[] = new Specification('date', 'Date', E::ts('Signature Date'), false, null, null, null, false);
+    $specs[] = new Specification('validation_date', 'Date', E::ts('Validation Date'), false, null, null, null, false);
+    $specs[] = new Specification('start_date', 'Date', E::ts('Start Date'), false, null, null, null, false);
+    $specs[] = new Specification('end_date', 'Date', E::ts('End Date'), false, null, null, null, false);
+
+    // add collection fields
+    $specs[] = new Specification('frequency', 'Integer', E::ts('Frequency'), false, null, null, null, false);
+    $specs[] = new Specification('cycle_day', 'Integer', E::ts('Cycle Day'), false, null, null, null, false);
+    $specs[] = new Specification('financial_type', 'String', E::ts('Financial Type'), false, null, null, null, false);
+    $specs[] = new Specification('campaign', 'String', E::ts('Campaign'), false, null, null, null, false);
+    $specs[] = new Specification('amount', 'Float', E::ts('Amount'), false, null, null, null, false);
+
+    return new SpecificationBag($specs);
+  }
+
+  /**
+   * Run the action
+   *
+   * @param ParameterBagInterface $parameters
+   *   The parameters to this action.
+   * @param ParameterBagInterface $output
+   * 	 The parameters this action can send back
+   * @return void
+   */
+  protected function doAction(ParameterBagInterface $parameters, ParameterBagInterface $output) {
+    $params = $parameters->toArray();
+
+    // override if necessary
+    foreach (['activity_type_id', 'i3val_note', 'status'] as $field_name) {
+      if (empty($params[$field_name])) {
+        $params[$field_name] = $this->configuration->getParameter($field_name);
+      }
+    }
+
+    // execute
+    $result = \civicrm_api3('SepaMandate', 'request_update', $params);
+  }
+}
\ No newline at end of file
diff --git a/Civi/I3val/ContainerSpecs.php b/Civi/I3val/ContainerSpecs.php
index db78ccf..a726200 100644
--- a/Civi/I3val/ContainerSpecs.php
+++ b/Civi/I3val/ContainerSpecs.php
@@ -2,7 +2,7 @@
 /*-------------------------------------------------------+
 | Ilja's Input Validation Extension                      |
 | Amnesty International Vlaanderen                       |
-| Copyright (C) 2017-2019 SYSTOPIA                       |
+| Copyright (C) 2017-2020 SYSTOPIA                       |
 | Author: B. Endres (endres@systopia.de)                 |
 | http://www.systopia.de/                                |
 +--------------------------------------------------------+
@@ -34,7 +34,11 @@ public function process(ContainerBuilder $container) {
     $typeFactoryDefinition = $container->getDefinition('action_provider');
     $typeFactoryDefinition->addMethodCall('addAction', ['RequestContactUpdate', 'Civi\I3val\ActionProvider\Action\RequestContactUpdate', E::ts('Request Contact Update'), [
         \Civi\ActionProvider\Action\AbstractAction::SINGLE_CONTACT_ACTION_TAG,
-        \Civi\ActionProvider\Action\AbstractAction::DATA_RETRIEVAL_TAG
+        \Civi\ActionProvider\Action\AbstractAction::DATA_MANIPULATION_TAG
+    ]]);
+    $typeFactoryDefinition->addMethodCall('addAction', ['RequestMandateUpdate', 'Civi\I3val\ActionProvider\Action\RequestMandateUpdate', E::ts('Request CiviSEPA Mandate Update'), [
+        \Civi\ActionProvider\Action\AbstractAction::SINGLE_CONTACT_ACTION_TAG,
+        \Civi\ActionProvider\Action\AbstractAction::DATA_MANIPULATION_TAG
     ]]);
   }
 }
\ No newline at end of file