# Guides

Here are gathered detailed step-by-step guides for basic scenarios of creating data flows through API.

* [Scenario 1: Sending Device Data to an External MQTT System](https://www.navixy.com/docs/iot-logic-api/navixy-iot-guide/scenario1)
* [Scenario 2: Managing Your Flows and Endpoints](https://www.navixy.com/docs/iot-logic-api/navixy-iot-guide/scenario2)
* [Scenario 3: Advanced configurations](https://www.navixy.com/docs/iot-logic-api/navixy-iot-guide/advanced-configurations)
* [Scenario 4: Adding calculated attributes to Navixy UI](https://www.navixy.com/docs/iot-logic-api/navixy-iot-guide/adding-calculated-attributes-to-navixy-ui)