# MQTT - Send measurements to multiple devices

**URL:** https://community.cumulocity.com/t/mqtt-send-measurements-to-multiple-devices/3448
**Category:** Forum
**Tags:** cumulocity
**Created:** [April 30, 2020, 7:35pm UTC](https://community.cumulocity.com/t/mqtt-send-measurements-to-multiple-devices/3448 "2020-04-30T19:35:25Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![Fourkane\_Irki](https://avatars.discourse-cdn.com/v4/letter/f/2acd7d/32.png) [@Fourkane\_Irki](https://community.cumulocity.com/u/Fourkane_Irki)
#### Post date: [April 30, 2020, 7:35pm UTC](https://community.cumulocity.com/t/mqtt-send-measurements-to-multiple-devices/3448/1 "2020-04-30T19:35:25Z")

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Hi,

I was able to send MQTT measurement to 1 device but not for multiple devices simultaneously. There is no deviceId or deviceName in sending measurements topics, I even tried to instanciate multiple clients in a Python program. But only measurement sent to te first connected device work.

Could you help with that ?

Thanks

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### Author: ![Fourkane\_Irki](https://avatars.discourse-cdn.com/v4/letter/f/2acd7d/32.png) [@Fourkane\_Irki](https://community.cumulocity.com/u/Fourkane_Irki)
#### Post date: [May 11, 2020, 6:20pm UTC](https://community.cumulocity.com/t/mqtt-send-measurements-to-multiple-devices/3448/2 "2020-05-11T18:20:35Z")

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I got it working using unique MQTT clientId for each sensor.

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### Author: ![system](https://dub1.discourse-cdn.com/flex005/user_avatar/community.cumulocity.com/system/32/31990_2.png) [@system](https://community.cumulocity.com/u/system)
#### Post date: [April 2, 2021, 3:44pm UTC](https://community.cumulocity.com/t/mqtt-send-measurements-to-multiple-devices/3448/3 "2021-04-02T15:44:36Z")

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