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Q
QU_98232971-Visitor
1-Visitor
April 16, 2021
Question

MQTT things property cannot trigger subcription

  • April 16, 2021
  • 2 replies
  • 1457 views

Hi all,
I am using MQTT extension 3.0 to connect to my MQTT broker. When thing receives messages on the right topic, its properties can change but subscription for that data change is not triggered. I tried to change data by Composer UI then the subscription is triggered. I have set visibility to ThingworxPeristentProvider for System User by reading similar topics but the situation is not changed
Can someone help me?
Thanks

2 replies

S
slangleyCommunity Manager
Community Manager
April 22, 2021

Hi @QU_9823297.

 

Make sure your subscription is enabled.  Also, have you checked the script logs for any errors?

 

Regards.

 

--Sharon

A
Alessio15-Moonstone
15-Moonstone
April 22, 2021

I believe that if the property change happens via the MQTT Extension (ThingWorx 9.1), the DataChange event not raised.

 

If this is the case I would consider that a bug. I also think I have filed it a while ago.

 

Please open a ticket with Tech Support. 

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