diff --git a/api/v1/post/application.php b/api/v1/post/application.php
index 13c0b5a..88b1fbb 100644
--- a/api/v1/post/application.php
+++ b/api/v1/post/application.php
@@ -197,6 +197,10 @@ switch ($action) {
                 $stmt = $pdo->prepare($sql);
                 $stmt->execute(['4',$warranty_extended,$partnerhierarchy,$rowID['rowID']]);
 
+                //Add warranty to changelog
+                $warranty_user = $post_content['email'] ?? 'system';
+                changelog($dbname,'equipment',$rowID['rowID'],'Warranty',$warranty_extended,$warranty_user);
+
                 //Serialnumber recognized
                 $message_box[] = $sn.' - '.$register_message_3;
                 $communication_check = 1;
@@ -299,6 +303,10 @@ switch ($action) {
             $stmt = $pdo->prepare($sql);
             $stmt->execute(['4',$warranty_extended,$partnerhierarchy,$rowID['rowID']]);
 
+            //Add warranty to changelog
+            $warranty_user = $post_content['email'] ?? 'system';
+            changelog($dbname,'equipment',$rowID['rowID'],'Warranty',$warranty_extended,$warranty_user);
+
             //Serialnumber recognized
             $message_box[] = $post_content['sn'].' - '.$register_message_3;
             }