# Message from gateway to perspective component

**URL:** <https://forum.inductiveautomation.com/t/message-from-gateway-to-perspective-component/112280>\
**Category:** Ignition\
**Tags:** perspective\
**Created:** [November 19, 2025, 7:57pm UTC](https://forum.inductiveautomation.com/t/message-from-gateway-to-perspective-component/112280 "2025-11-19T19:57:30Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![luipen](https://avatars.discourse-cdn.com/v4/letter/l/f07891/32.png) [@luipen](https://forum.inductiveautomation.com/u/luipen)\
**Post date:** [November 19, 2025, 7:57pm UTC](https://forum.inductiveautomation.com/t/message-from-gateway-to-perspective-component/112280/1 "2025-11-19T19:57:30Z")

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# Message from Gateway Tag Event change

In my scenario, I have many UDT's and I build a view that will repeat elements depending if on a specific tag within the UDT contains or not data, the view will show the representation of such elements according the tag evaluation criteria.

My strategy is a timer gateway event, to poll all UDT and specific data tag, build a payload and send with `system.util.sendMessage` from the gateway with scope `Sessions [S]`, here comes my question:

When message arrives to the perspective session, **is needed a session message handler to redistribute the message sent by the gateway**? with `system.perspective.sendMessage` in order to one component within the session can receive the message and make something with for example all values of the tags readed to build dinamically and control the number of elements in the view.

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/a/1/a1e0f59e4f947b0bc8b96aa687730a5147c00dc2.png)

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/d/b/db9fd059b0c8506216284a979af44a5591c98dff.png)

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<div class="post-metadata">

**Author:** ![dillon](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/dillon/32/81537_2.png) [@dillon](https://forum.inductiveautomation.com/u/dillon)\
**Post date:** [November 19, 2025, 8:27pm UTC](https://forum.inductiveautomation.com/t/message-from-gateway-to-perspective-component/112280/2 "2025-11-19T20:27:47Z")

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Yes using `system.perspective.sendMessage()` will allow you to send a payload and update the property values of a repeating component like a Flex Repeater.