WOLFRAM

Wolfram Language & System Documentation Center

StartScheduledTask[obj]

starts the local or cloud scheduled task represented by obj.

Details
Details and Options Details and Options
Examples  
Basic Examples  
Scope  
See Also
Tech Notes
History
Cite this Page

StartScheduledTask

StartScheduledTask is being phased out in favor of TaskResume, which was introduced experimentally in Version 11.2.

StartScheduledTask[obj]

starts the local or cloud scheduled task represented by obj.

Details

Examples

open all close all

Basic Examples  (4)

Temporarily stop the task:

Wolfram Language code: n = 0;Dynamic[n] t = CreateScheduledTask[n++, {1, 20}];
Wolfram Language code: StartScheduledTask[t];Pause[4];StopScheduledTask[t];n = 0;StartScheduledTask[t];
Wolfram Language code: RemoveScheduledTask[t];

Non-synchronized tasks:

Wolfram Language code: i = 0; RunScheduledTask[++i, 1]; RunScheduledTask[i = 0, 4]; Dynamic[i]

Better synchronization:

Wolfram Language code: j = 0; StartScheduledTask[{CreateScheduledTask[++j, 1], CreateScheduledTask[j = 0, 4]}]; Dynamic[j]
Wolfram Language code: RemoveScheduledTask[ScheduledTasks[]];

Create a task with random wait periods:

Wolfram Language code: time := RandomInteger[{1, 3}]
Wolfram Language code: fun[t_] := Print["Waiting ", t, " seconds."]
Wolfram Language code: RunScheduledTask[With[{t = time}, ResetScheduledTask[$ScheduledTask, {t}];fun[t];StartScheduledTask[$ScheduledTask]], {1}];
Wolfram Language code: RemoveScheduledTask[ScheduledTasks[]];

Create a task that restarts evaluation as soon as it finishes:

Wolfram Language code: fun := With[{t = RandomInteger[{1, 3}]}, Print["Waiting ", t, " seconds."];Pause[t]]
Wolfram Language code: RunScheduledTask[fun;StartScheduledTask[$ScheduledTask], {1}];
Wolfram Language code: RemoveScheduledTask[ScheduledTasks[]];

Scope  (1)

Use StartScheduledTask to recommence scheduled executions of a cloud scheduled task or document generator:

Wolfram Language code: obj = CloudDeploy[ScheduledTask[TimeObject[], "Daily"]]
Wolfram Language code: With[{task = obj}, StopScheduledTask[task]]
Wolfram Language code: ScheduledTaskActiveQ[obj]

Resume scheduled executions:

Wolfram Language code: With[{task = obj}, StartScheduledTask[task]]
Wolfram Language code: ScheduledTaskActiveQ[obj]

Delete the task:

Wolfram Language code: RemoveScheduledTask[obj]
Wolfram Research (2010), StartScheduledTask, Wolfram Language function, https://reference.wolfram.com/language/ref/StartScheduledTask.html (updated 2014).

Text

Wolfram Research (2010), StartScheduledTask, Wolfram Language function, https://reference.wolfram.com/language/ref/StartScheduledTask.html (updated 2014).

CMS

Wolfram Language. 2010. "StartScheduledTask." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2014. https://reference.wolfram.com/language/ref/StartScheduledTask.html.

APA

Wolfram Language. (2010). StartScheduledTask. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/StartScheduledTask.html

BibTeX

@misc{reference.wolfram_2026_startscheduledtask, author="Wolfram Research", title="{StartScheduledTask}", year="2014", howpublished="\url{https://reference.wolfram.com/language/ref/StartScheduledTask.html}", note=[Accessed: 15-June-2026]}

BibLaTeX

@online{reference.wolfram_2026_startscheduledtask, organization={Wolfram Research}, title={StartScheduledTask}, year={2014}, url={https://reference.wolfram.com/language/ref/StartScheduledTask.html}, note=[Accessed: 15-June-2026]}