diff --git a/batchexportperm.php b/batchexportperm.php
index d35c492..2c17b78 100644
--- a/batchexportperm.php
+++ b/batchexportperm.php
@@ -214,6 +214,22 @@ function batchexportperm_civicrm_pre($op, $objectName, $id, &$params) {
   if ($op == 'edit' && $objectName == 'Contribution') {
     _batchexportperm_civicrm_check_permission($id);
   }
+
+  if ($objectName == 'Batch' && $op == 'edit') {
+    if (!empty($params['status_id'])) {
+      $exportedStatusId = CRM_Core_PseudoConstant::getKey('CRM_Batch_BAO_Batch', 'status_id', 'Exported');
+      if ($exportedStatusId != $params['status_id']) {
+        return NULL;
+      }
+      $oldStatusId = civicrm_api3('Batch', 'getvalue', [
+        'return' => "status_id",
+        'id' => $id,
+      ]);
+      if ($oldStatusId != $params['status_id']) {
+        CRM_Core_Smarty::singleton()->assign("batch_status_change_{$id}", TRUE);
+      }
+    }
+  }
 }
 
 /**
@@ -279,3 +295,45 @@ function _batchexportperm_civicrm_allow_contribution_to_edit($contributionId) {
   }
   return FALSE;
 }
+
+/**
+ * Implements hook_civicrm_post().
+ *
+ * @link http://wiki.civicrm.org/confluence/display/CRMDOC/hook_civicrm_post
+ */
+function batchexportperm_civicrm_post($op, $objectName, $objectId, &$objectRef) {
+  if ($objectName == 'Batch' && $op == 'edit') {
+    if (CRM_Core_Smarty::singleton()->get_template_vars("batch_status_change_{$objectId}")) {
+      _batchexportperm_civicrm_update_contribution_exporteddate($objectId);
+      CRM_Core_Smarty::singleton()->assign("batch_status_change_{$objectId}", FALSE);
+    }
+  }
+}
+
+/**
+ * Set export date custom field for contribution when batch is exported.
+ *
+ * @param int $batchId
+ */
+function _batchexportperm_civicrm_update_contribution_exporteddate($batchId) {
+  $customFieldId = civicrm_api3('CustomField', 'getvalue', [
+    'return' => "id",
+    'custom_group_id' => "batchexportperm_batch_details",
+    'name' => "export_date",
+  ]);
+  $sql = "SELECT cc.id contribution_id
+    FROM civicrm_contribution cc
+      INNER JOIN civicrm_entity_financial_trxn ceft
+        ON ceft.entity_id = cc.id AND ceft.entity_table = 'civicrm_contribution'
+      INNER JOIN civicrm_entity_batch ceb
+        ON ceb.entity_id = ceft.financial_trxn_id
+          AND ceb.entity_table = 'civicrm_financial_trxn' AND ceb.batch_id = {$batchId}
+    GROUP BY cc.id";
+  $dao = CRM_Core_DAO::executeQuery($sql);
+  while ($dao->fetch()) {
+    civicrm_api3('Contribution', 'create', [
+      'id' => $dao->contribution_id,
+      "custom_{$customFieldId}" => date('Y-m-d H:i:s'),
+    ]);
+  }
+}