> For the complete documentation index, see [llms.txt](https://android-news-app.gitbook.io/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://android-news-app.gitbook.io/docs/android-studio/package-name.md).
# Package Name
The package name of an Android app uniquely identifies your app on the device, in Google Play Store and in supported third-party Android stores.
### **Step 1**
1. Open **Gradle Scripts → build.gradle (Module: app)**
2. Change the application ID with your own id name
3. Standard naming procedure : **com.yourdomainname.yourappname**
4. Click **Sync Now**.
5. Change the id as unique as possible, because application id is very important used if you want to publish the application to the google play.
{% hint style="info" %}
Important : your **applicationId or package name** must same with your package name that you’ve create on firebase console when you generate google-services.json
{% endhint %}
### **Step 2**
1. Click once on your package and then click setting icon on Android Studio.
2. Close / Unselect **Compact Empty Middle Packages**
3. Right click your package and rename it.
### **Step 3**
If you use OneSignal for sending push notification, you must manually change the NotificationServiceExtension value in the **AndroidManifest.xml** according to your package name
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