In-App Purchases for Your App

1. In Google Play Console, select your developer account.
2. In the left sidebar, go to Setup → Payments profile.
3. Click Create payments profile (or Manage payments profile if one already exists).

Fill in your account type (Individual or Business), legal name and address, a bank account for payouts, and your tax information. Submit — Google may ask for identity or business verification documents.

1. In your app, go to Monetize → Products → In-app products.
2. Click Create product.
3. Enter a Product ID — lowercase letters, numbers, underscores and periods; must start with a letter or number (e.g. coins_100). It's permanent and can't be changed or reused.
4. Enter a Name and Description shown to buyers, and set a Price.
5. Click Save, then Activate to make it purchasable.

1. In Google Play Console, go to Setup → API access.
2. Either Link an existing Google Cloud project, or create a new one and then link it.
3. Select the project and click Link project. (You must be an Owner to link.)

1. Open Google Cloud Console and make sure the linked project is selected in the top project picker.
2. Go to APIs & Services → Library.
3. Search for "Google Play Android Developer API", open it, and click Enable.

1. In Google Cloud Console (correct project selected), go to IAM & Admin → Service Accounts.
2. Click Create service account.
3. Enter a name (e.g. play-purchase-verifier) and click Create and continue.
4. Skip the optional role-granting step (permissions are granted in Play Console in step 3), then click Done.

1. In the Service Accounts list, click the account you just created.
2. Open the Keys tab → Add key → Create new key.
3. Choose JSON and click Create. A .json key file downloads automatically — this is the file you upload to AI Studio in Part 5.

The key does nothing until you give the account permission inside Play Console.

1. Copy the service account's email address (e.g. play-purchase-verifier@your-project.iam.gserviceaccount.com, shown in the Service Accounts list).
2. In Play Console, go to Users and permissions.
3. Click Invite new user and paste the service-account email.
4. Under Account permissions, grant at minimum:
   • View financial data, orders, and cancellation survey responses
   • Manage orders and subscriptions
5. Click Invite user — the service account is added directly, no email confirmation needed.

1. Open your app in AI Studio.
2. Click the Settings button in the toolbar above the preview panel (⚙ gear icon).
3. In the left menu, select App Purchase.

1. In the Google Service Account section, click the file picker and choose the .json key you downloaded in Part 4.
2. AI Studio reads the key and shows the account email and project once it's stored.

In the Products section, add one entry per product you created in Play Console:

• › Product ID — must match the Play Console Product ID exactly (e.g. coins_100).
• › Type — consumable (re-buyable) or non-consumable (one-time unlock).
• › What it grants — the number of credits to award, or the feature key to unlock.
• › Display name & price — shown in your app's purchase UI.

1. Set Status to Enabled.
2. Click Save.

1. In Play Console, go to Setup → License testing.
2. Add the Gmail addresses of your testers and save.

License testers' purchases are not charged.

1. Make sure your app bundle is on a testing track (Internal testing is quickest — see the Android publishing guide).
2. Install the app on a device signed in with a tester Gmail account.
3. Buy a product — you should see a "Test card, always approves" payment option, and after the purchase AI Studio should grant the item.