Hi I'm totally new to node-red and need some help I'm getting values of a flow sensor via MQTT {"FlowRate":0.19,"TotalVolume":11354.25,"KValues":[{"Item1":19.0,"Item2":24.0},{"Item1":38.0,"Item2":61.0},{"Item1":57.0,"Item2":93.0},{"Item1":76.0,"Item2":128.0},{"Item1":95.0,"Item2":163.0},{"Item1":1…

[image] Le-bo2d9: msg.payload = {"command":"udevice","idx":1436,"nvalue":0,"svalue":msg.payload.FlowRate} Since it is a number, you can use .toString() msg.payload = {"command":"udevice","idx":1436,"nvalue":0,"svalue":String(msg.payload.FlowRate.toString())} Or, you can append "" …

Hi Steve, Thx for the solution. I have used the String(msg.payload.FlowRate). I had tied the tostring but didn't noticed the capilal S of string

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Add quotes to Json Value

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