# Edge device triggering workflow

**URL:** <https://forums.losant.com/t/edge-device-triggering-workflow/3378>\
**Category:** Help\
**Tags:** edge\
**Created:** [November 5, 2020, 6:12pm UTC](https://forums.losant.com/t/edge-device-triggering-workflow/3378 "2020-11-05T18:12:56Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Lars\_Andersson](https://avatars.discourse-cdn.com/v4/letter/l/f05b48/32.png) [@Lars\_Andersson](https://forums.losant.com/u/Lars_Andersson)\
**Post date:** [November 5, 2020, 6:12pm UTC](https://forums.losant.com/t/edge-device-triggering-workflow/3378/1 "2020-11-05T18:12:56Z")

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I’m having a memory lapse on how I can make an edge workflow trigger a virtual button in an application workflow.  
If that is not possible, what are my best options?

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**Author:** ![Heath](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.losant.com/heath/32/3036_2.png) [@Heath](https://forums.losant.com/u/Heath)\
**Post date:** [November 5, 2020, 6:57pm UTC](https://forums.losant.com/t/edge-device-triggering-workflow/3378/3 "2020-11-05T18:57:26Z")

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Hey @Lars_Andersson,

Your best route is to use an MQTT output node in your Edge workflow with a custom topic that an Application Workflow, with the MQTT trigger, is “listening” to. You would need to make sure that the access key & secret pair has “Additional MQTT Access” set to either All Topics or has the custom topics you will use specified.

Let me know if you have any other questions!

Thank you,  
Heath

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**Author:** ![Lars\_Andersson](https://avatars.discourse-cdn.com/v4/letter/l/f05b48/32.png) [@Lars\_Andersson](https://forums.losant.com/u/Lars_Andersson)\
**Post date:** [November 5, 2020, 6:59pm UTC](https://forums.losant.com/t/edge-device-triggering-workflow/3378/5 "2020-11-05T18:59:34Z")

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ok, I ended up using a webhook, but I would think your suggestion is more secure.