# Register Android App & Download Config File *Skill Level: Expert* ## Before You Begin * Should have knowledge about [Databases](https://help.adalo.com/database) * Should be very comfortable using Adalo ## Walkthrough 1. Click on the setting icon (in the top left shaped like a gear) and then select project settings.

2. On the settings page, you’ll see ‘Your Apps’ in the middle. Click on the Android icon to create a new Android app.

3. Create a [***Package Name***](#user-content-fn-1)[^1] using the following syntax: [***com.appname.android**.*](#user-content-fn-2)[^2] 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. ***The Package Name be tied to your Listing in Google Play and cannot be changed once the Listing is created.***

4. You can give it a nickname and then click register. 5. Download the Config file. You will load this into the Adalo Builder when creating your Build File.

6. Skip "Add Firebase SDK" - Adalo will take care of this for you automatically. 7. Continue to Console.

## Help If you need additional help with this article, you can always ask in our [community forum](https://forum.adalo.com/)! Be sure to paste the link to this article in your post as well! [^1]: **Important:** Once you publish your app, you should never change the Package Name. If you change the Package Name, Google Play Store treats the upload as a completely different app. If you want to upload a new version of your app, you must use the same Package Name and [signing certificate](https://developer.android.com/studio/publish/app-signing) as when originally published. [^2]: **This is just an example.** Package names are case sensitive and must meet the following requirements: * It must have at least two segments (one or more dots). * Each segment must start with a letter. * All characters must be alphanumeric or an underscore \[a-zA-Z0-9\_].