Added Exception Message to Taks Notification Email

administrator/language/en-GB/plg_system_tasknotification.ini

@@ -4,9 +4,9 @@
 ; Note : All ini files need to be saved as UTF-8
 
 PLG_SYSTEM_TASK_NOTIFICATION="System - Task Notification"
-PLG_SYSTEM_TASK_NOTIFICATION_FAILURE_MAIL_BODY="Execution of Scheduled Task#{TASK_ID}, {TASK_TITLE}, has failed with exit code {EXIT_CODE} at {EXEC_DATE_TIME}. The error message is shown below. The problem might be temporarily or related to this scheduled task only. However, it might impact your site as well. Please verify that your site is working correctly as soon as possible..\n{TASK_OUTPUT}\nError Message (if any):\n{TASK_EXCEPTION}"
+PLG_SYSTEM_TASK_NOTIFICATION_FAILURE_MAIL_BODY="Hello,\n\nExecution of Scheduled Task#{TASK_ID}, {TASK_TITLE}, has failed with exit code {EXIT_CODE} at {EXEC_DATE_TIME}. The error message is shown below. The problem might be temporarily or related to this scheduled task only. However, it might impact your site as well. Please verify that your site is working correctly as soon as possible..\n{TASK_OUTPUT}\nError Message (if any):\n{TASK_EXCEPTION}"
 PLG_SYSTEM_TASK_NOTIFICATION_FAILURE_MAIL_SUBJECT="Task Failure"
-PLG_SYSTEM_TASK_NOTIFICATION_FATAL_MAIL_BODY="Joomla! caught a fatal failure while executing the Scheduled Task#{TASK_ID}, {TASK_TITLE}  at {EXEC_DATE_TIME}. The error message is shown below. This could mean that the task execution exhausted the system resources or the restrictions from the PHP INI. The problem might be temporarily or related to this scheduled task only. However, it might impact your site as well. Please verify that your site is working correctly as soon as possible..\n{TASK_OUTPUT}\nError Message (if any):\n{TASK_EXCEPTION}"
+PLG_SYSTEM_TASK_NOTIFICATION_FATAL_MAIL_BODY="Hello,\n\nJoomla! caught a fatal failure while executing the Scheduled Task#{TASK_ID}, {TASK_TITLE}  at {EXEC_DATE_TIME}. The error message is shown below. This could mean that the task execution exhausted the system resources or the restrictions from the PHP INI. The problem might be temporarily or related to this scheduled task only. However, it might impact your site as well. Please verify that your site is working correctly as soon as possible..\n{TASK_OUTPUT}\nError Message (if any):\n{TASK_EXCEPTION}"
 PLG_SYSTEM_TASK_NOTIFICATION_FATAL_MAIL_SUBJECT="Task Recover from Fatal Failure"
 PLG_SYSTEM_TASK_NOTIFICATION_LABEL_FAILURE_MAIL_TOGGLE="Task Failure"
 PLG_SYSTEM_TASK_NOTIFICATION_LABEL_FATAL_FAILURE_MAIL_TOGGLE="Fatal Failures/Crashes (Recommended)"

plugins/system/tasknotification/src/Extension/TaskNotification.php

@@ -241,7 +241,13 @@ private function getDataFromTask(Task $task): array
             'EXIT_CODE'      => $task->getContent()['status'] ?? Status::NO_EXIT,
             'EXEC_DATE_TIME' => $lockOrExecTime,
             'TASK_OUTPUT'    => $task->getContent()['output_body'] ?? '',
-            'TASK_EXCEPTION' => $task->getContent()['exception']?->getMessage() ?? '',
+            // this might rersult in one or two empty strings with new Lines. Not too visible in email or html
+            // so not really worth the effort to add a lot of extra code to optimize this
+            'TASK_EXCEPTION' => ($task->getContent()['exception']?->getMessage() ?? '')
+                                ."\n\n".
+                                 Path::removeRoot($task->getContent()['exception']?->getTraceAsString() ?? '')
+                                ,
+
         ];
     }