# Notify when sensors are offline/missing?

**URL:** <https://community.homey.app/t/notify-when-sensors-are-offline-missing/3580>\
**Category:** Devices\
**Created:** [November 2, 2018, 5:16pm UTC](https://community.homey.app/t/notify-when-sensors-are-offline-missing/3580 "2018-11-02T17:16:33Z")\
**Posts on this page:** 1\
**Showing post:** 24

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**Author:** ![Geurti](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/geurti/32/8560_2.png) [@Geurti](https://community.homey.app/u/Geurti)\
**Post date:** [February 24, 2020, 11:57am UTC](https://community.homey.app/t/notify-when-sensors-are-offline-missing/3580/24 "2020-02-24T11:57:39Z")

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So, according to someone’s message it means the flow is disabled, right?

> [@Flow icons in mobile app](https://community.homey.app/t/flow-icons-in-mobile-app/7097/9):
>
> **Gray play button, faded to 50% opacity.**  
> _Flow (trigger) disabled_ , and is _not_ able to run by pressing the play icon, because the flow **needs/uses** a value of the _trigger card_ .

How can I solve this?

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_[View the full topic](https://community.homey.app/t/notify-when-sensors-are-offline-missing/3580)._