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  1. Use Reference tags to indirectly reference MQTT Engine tags such that alarm configuration can be persisted on the Reference tag when the underlying MQTT Engine tags are deleted. This is the recommended way of configuring alarms on MQTT Engine tags (indirectly) so alarm config persists.
  2. Use Ignition scripting to reapply alarm configuration directly on MQTT Engine tags on demand. This is a bit more cumbersome as there must be some mechanism to "trigger" the script execution. 

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