# Scheduling execution tasks

Information noteNote: Only users that have the Operation Manager role and rights can have a read-write access to the tasks list. Other types of users can have a read-only access or no access to the list. When opening this page as a user of the Administration Center, you will have access only to the items for which you have been granted the appropriate authorization by the Administrator.

On the Job Conductor page, you can schedule an execution task using different types of triggers.

![](https://help.qlik.com/talend/en-US/administration-center-user-guide/Resources/images/tac-task_triggers.png)

Available triggers are:

* Time-based triggers (SimpleTrigger)
* Periodic multi-platform CRON-like triggers (CronUITrigger)
* File-based triggers (FileTrigger):

The trigger list includes the following information:

| Column | Description |
| --- | --- |
| Label | Trigger name |
| Trigger type | One of the following trigger types:<br><br><ul> <li> <span>SimpleTrigger</span> </li> <li> <span>CronUITrigger </span> </li> <li> <span>FileTrigger</span> </li> </ul> |
| Status | Status of the current trigger.<br><br><ul> <li> <img src="https://help.qlik.com/talend/en-US/administration-center-user-guide/Resources/images/clock.png" alt=""> <span>Normal</span>: The trigger is ready to be                                    launched</li> <li> <img src="https://help.qlik.com/talend/en-US/administration-center-user-guide/Resources/images/clock_delete.png" alt=""> <span>Waiting for the task to end</span>: The                                    triggering has taken place, the task execution is in                                    progress</li> <li> <img src="https://help.qlik.com/talend/en-US/administration-center-user-guide/Resources/images/clock_pause.png" alt=""> <span>Paused</span>: The trigger is disabled</li> <li> <img src="https://help.qlik.com/talend/en-US/administration-center-user-guide/Resources/images/tick.png" alt=""> <span>Completed</span>: The trigger execution is                                    complete</li> <li> <img src="https://help.qlik.com/talend/en-US/administration-center-user-guide/Resources/images/clock_error.png" alt=""> <span>Error/Invalid</span>: The trigger execution has                                    failed or is invalid</li> </ul> |
| Previous triggering on | Date and time when the previous triggering took place |
| Number of triggerings | Estimated number of triggering that will take place over the selected<br>period of time and/or for the number of triggering repetition<br>set. |
| Time left before next triggering | Time to elapse before the next triggering starts. |
| Next triggering on | Date and time when the next triggering will take place. |
| Final triggering on | Estimated or set triggering end time. |
| Start time | Date and time when the first triggering takes place. |
| End time | Actual time when the last triggering ended. |
| File mask | In case of file-based trigger, enter the file name extension for the<br>relevant file |
| Id | Trigger identification |

On the Triggers view at the bottom half of the Job Conductor page, you can add triggers, edit triggers, enable/disable triggers, delete triggers and customize the trigger list.

### In this section

* [Adding triggers](https://help.qlik.com/talend/en-US/administration-center-user-guide/8.0/adding-triggers)
* [Editing a trigger](https://help.qlik.com/talend/en-US/administration-center-user-guide/8.0/editing-trigger)
* [Disabling/Enabling a trigger](https://help.qlik.com/talend/en-US/administration-center-user-guide/8.0/disabling-enabling-trigger)
* [Deleting one or more triggers](https://help.qlik.com/talend/en-US/administration-center-user-guide/8.0/deleting-one-or-more-triggers)
* [Customizing the display of the trigger list](https://help.qlik.com/talend/en-US/administration-center-user-guide/8.0/customizing-display-of-trigger-list)