# Sending UDT's with sparkplug B nodes in Node-Red

**URL:** <https://forum.inductiveautomation.com/t/sending-udts-with-sparkplug-b-nodes-in-node-red/77781>\
**Category:** Ignition\
**Tags:** perspective\
**Created:** [August 12, 2023, 11:33am UTC](https://forum.inductiveautomation.com/t/sending-udts-with-sparkplug-b-nodes-in-node-red/77781 "2023-08-12T11:33:02Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Theodorska](https://avatars.discourse-cdn.com/v4/letter/t/34f0e0/32.png) [@Theodorska](https://forum.inductiveautomation.com/u/Theodorska)\
**Post date:** [August 12, 2023, 11:33am UTC](https://forum.inductiveautomation.com/t/sending-udts-with-sparkplug-b-nodes-in-node-red/77781/1 "2023-08-12T11:33:02Z")

</div>

Hello!

We are currently testing out node-red as an interface between OPC UA and MQTT sparkplug B. I am able to subscribe to values from the OPC UA connection, and I am able to connect the sparkplug B nodes to Ignition. However, I am unsure what would be the best practice to connect and send these OPC UA signals via the MQTT sparkplug B nodes utilizing UDT's. I was wondering if anyone had any experience setting up a similar system that maintains dataflow after connection loss and with store and forward working? Would love to hear from you!

---

<div class="post-metadata">

**Author:** ![Theodorska](https://avatars.discourse-cdn.com/v4/letter/t/34f0e0/32.png) [@Theodorska](https://forum.inductiveautomation.com/u/Theodorska)\
**Post date:** [August 14, 2023, 9:01am UTC](https://forum.inductiveautomation.com/t/sending-udts-with-sparkplug-b-nodes-in-node-red/77781/2 "2023-08-14T09:01:31Z")

</div>

It is my understanding that sending UDT's are not yet possible with Node-red