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A Transmitter can have a single Sparkplug edgenode associated with it or it can have many. Each Sparkplug edgenode will establish its own single MQTT client connection to the MQTT server. There is no limit to the number of Sparkplug edge nodes and/or MQTT clients you can have on a single GW. The more clients and/or edge nodes present, the more resources will be consumed by the application. If you are using MQTT Distributor, be aware of its concurrent connected client limits depending on license type (50 with Standard, 250 with Plus) and upgrade to Cirrus Link's Chariot MQTT Server if you need to support higher MQTT client counts.

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Fewer Transmitters with dynamically discovered Sparkplug assets reduce the overall amount of configuration to manage and makes it simple to add new edge nodes to existing Transmitters, but work per edge node will be done sequentially. If creating or managing many Transmitters at scale, consider using Transmission's scriptable configuration APIs.