Adding additional keys

Once you have registered a package name, you can add additional keys:

1. Go to the Android developer verification page in Play Console.
2. Select the registered package name on the Package names tab.
3. Enter your SHA-256 certificate fingerprint when prompted.
4. Select Add key.
5. Your key will take a few minutes to propagate to the Android developer registry. You can track the status on the Package name page.

In some cases, you may be asked to complete proof of ownership of the corresponding private key when adding a key to a registered package name. This process is similar to proving ownership of a key when registering an existing package name.

• Select the registered package name on the Package names tab.
• Select Add key on the package name page.
• Enter your SHA-256 public fingerprint certificate when prompted.
• Select Add key.
• Next, you will see a button to Verify next to the key you just added.
• Select Verify.
• Copy your snippet—a unique identifier tied to your developer account.
• Prepare the APK: In your IDE (using an empty project with the same package name or your actual app), navigate to your app's source tree.
  • Inside the assets folder, create a file named exactly adi-registration.properties. 
  • Open the file and paste the snippet.
• Build and sign: Build a release APK and sign it with the private key that corresponds to the public certificate fingerprint. The signature (via jarsigner or Gradle's signingConfigs) serves as proof of legitimate ownership.
• Upload: Return to Play Console, select Upload, locate your signed release APK, and upload it. Android will check the signature and register your ownership.