Hello tobia88, Are you using latest plugin version? Could you please explain more what do you mean by this? Hey, por.chin Well Facebook Unity SDK is already integrated, for other I can not answer on this question, it depends of those plugins. For my plugin this is AndroidNativeBridge. You shouldn't add all those activities in the manifest point is that you have to combine all plugins to use one main activity. There is now straight forward instruction how to combine different plugins, it depends from those plugins. All can I do from my side here: - open plugins source code - clean coding - all important stuff for AndroidNative plugin marked in manifest Currently plugins implementation contains only one function with allows you to register your device and get device id, with you can pass to your server and make it able to send push notifications not this device.