diff --git a/react-native/firebase/debug-events.mo.md b/react-native/firebase/debug-events.mo.md
index e5e3f66..1e2691a 100644
--- a/react-native/firebase/debug-events.mo.md
+++ b/react-native/firebase/debug-events.mo.md
@@ -65,7 +65,7 @@ emulator-5554	device
 
 {% endhint %}
 
-2. Run the following command: `adb shell setprop debug.firebase.analytics.app <package_name>`
+2. Run the following command: `adb shell setprop debug.firebase.analytics.app <app_identifier>`
 
 {% hint style='success' %} **CHECK**
 
@@ -75,6 +75,15 @@ emulator-5554	device
 
 {% endhint %}
 
+{% hint style='info' %}
+
+How to find your `<app_identifier>` ?
+* dev: in your `build.gradle`
+* staging: in you `env.staging`
+* production: in your `env.production`
+
+{% endhint %}
+
 ### Use react-native-firebase API to track events (10min)
 
 1. Use `logEvent` method.