EDIT:
Guide for OH4-transform feature: OH 4 – Replacing MQTT JS transformation to SCRIPT transformation - #20 by reyhard
Remember to install the JS add-on “Javascript Scripting”.
Hi
Once again, thanks a lot for the job - working smooth for two years here at my place in Denmark.
BUT - did anyone re-write the transform-files so that they fit OH4 - then I do not want to start trying figuring it out (not that much into this stuff 
)