If it is the App developed by a customer, how to bind it with Tuya's platform after adding a device?

As long as the product is embedded in the Tuya module, it can be connected to the Tuya Cloud, and the configuration network can be activated through the OEM App or the App integrated with the Tuya SDK to realize the intelligent control. That is to say, the device of the user needs to be embedded with the Tuya module during the product development stage, and then the App you develop yourself needs to integrate with the Tuya SDK. After meeting the two conditions, the user can use the device to configure the network into your App to realize the device's binding with your App account. How to create a product on the IoT platform and embed the Tuya module, you can refer to: Create products-Tuya Smart https://docs.tuya.com/zh/iot/configure-in-platform/create-product/create-product ?id=K914jp1ijtsfe How to integrate the Tuya SDK on the IoT platform with the App developed by yourself. You can refer to: App SDK Creating Guide-Tuya Smart https://docs.tuya.com/zh/iot/app-development/sdk-development/app-sdk -instruction?id=K9kjstc7t376p App SDK Access Guide-Tuya Smart https://docs.tuya.com/zh/iot/app-development/sdk-development/app-sdk-creation-instruction?id=K989rt8rm8lc6