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+Step-by-step guide for MQTT Service device connection
+
+1. Verify that MQTT Service is available
+First, check that all prerequisites are fulfilled. Check if MQTT Service is already available for your Cumulocity tenant.
+
+For that, navigate to **Administration** → **Ecosystem** → **Microservices** in your tenant.
+Filter or look for Mqtt-service and Messaging-management.
+
+Here we go, MQTT-Service & Messaging-management are installed.
+
+2. Install management UI
+Next, install the new Management UI for MQTT Service and Notification 2.0.
+
+You can find it in the right drawer which expands when clicking on your user profile in the top right. Select **Manage beta features** in the **Beta features** section.
+
+Toggle the Messaging service-monitoring & management
+
+After an automated refresh, you should see a new **Monitoring** menu entry to enter the management UI.
+
+3. Select the right MQTT device
+You are now ready to connect a device via MQTT. There are many MQTT devices available.
+
+Physical device
+Normally, you would select a physical device. The easiest ones already have an MQTT client embedded, and you just need to configure the broker.
+
+There are plenty of examples of devices like smart cameras, smart gateways, PLCs, and many more.
+
+Alternatively, you can also build your own device like using an ESP32 and attaching any sensor.
+With that, you can connect to MQTT Service: https://esphome.io/components/mqtt.html
+
+Please note: Be aware of the current limitations of MQTT Service, which could result in your device being unable to connect, such as:
+
+Last Will Retained Message - results in the device being rejected
+Clean Session / Clean Start must be set to true - otherwise, the device is rejected
+Simulators
+If you don’t have a physical device at hand, you can also use simulators to publish data to MQTT Service.
+
+For example, you can use a nodeRED flow to generate data and publish it to MQTT Service. Check out this simple flow
+
+Another example could be a small Python script to generate data and publish it to MQTT.
+
+Here is an example:
+https://github.com/DamascenoRafael/mqtt-simulator
+
+MQTT client
+You can use any MQTT Client like MQTTx, connect manually to MQTT Service, and publish messages or subscribe on topics.
+
+This guide demonstrates connecting using an MQTT client and a device simulator.