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MQTT Engine Custom Namespaces are used to provide support for generic, non Sparkplug compliant MQTT messages with string based payloads. If a custom namespace is configured MQTT Engine will convert all messages received to tags where the topic of each message will translate directly to the tag's path and the payload will be the tag's value.

The data type of Ignition tag created is determined by the incoming JSON value - for example a value of 70 will result in a tag with an Integer data type and a value of 70.25 will result in a tag with a Double data type.

For null payload values:

If a tag already exists, null payload values are supported.

If the tag does not already exist, no tag will be created as the data type is indeterminate.

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