diff --git a/CRM/TwingleCampaign/BAO/Campaign.php b/CRM/TwingleCampaign/BAO/Campaign.php
index 316aa3f..6a5e9cc 100644
--- a/CRM/TwingleCampaign/BAO/Campaign.php
+++ b/CRM/TwingleCampaign/BAO/Campaign.php
@@ -74,7 +74,9 @@ abstract class CRM_TwingleCampaign_BAO_Campaign {
     );
 
     // Set id
-    $values_prepared_for_import['id'] = $this->id;
+    if (isset($this->id)) {
+      $values_prepared_for_import['id'] = $this->id;
+    }
 
     // Set a flag to not trigger the hook
     if ($no_hook) {
diff --git a/api/v3/TwingleCampaign/Get.php b/api/v3/TwingleCampaign/Get.php
index 6897ef0..b0670e1 100644
--- a/api/v3/TwingleCampaign/Get.php
+++ b/api/v3/TwingleCampaign/Get.php
@@ -107,9 +107,9 @@ function civicrm_api3_twingle_campaign_Get(array $params): array {
     Cache::getInstance()
       ->getCampaignIds()['campaign_types']['twingle_campaign']['id'];
 
-  // If no id but a project_id is provided, get all TwingleCampaign children of
-  // this TwingleProject
-  if (array_key_exists('project_id', $params) && $params['project_id']) {
+  // If no id but a parent_id or a project_id is provided, get all
+  // TwingleCampaign children of this TwingleProject
+  if (isset($params['project_id']) && !isset($params['parent_id'])) {
 
     // Get TwingleProject
     $project = civicrm_api3('TwingleProject',