Export Mapping requeris a parameter MQTT

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Hi to all, I’m having a problem trying to publish a JSON file via MQTT, when I put the export mapping before the publish from mqtt, I’m not able to set up the parameter, and because of that my error appears “The export mapping requires a parameter but none is specified in the action.”. How can I solve this to be able to sendo my JSON file.
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2 answers
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Hi

You need to create an “AddData” entity and pass this into your Export Mapping. At the moment your export mapping has no data to convert into JSON.

Hope this helps

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The message says that you need to create a variable of the type that the mapping requires. If you do that, you will see that you can pass it to the mapping.

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