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Verify Android in-app purchases

To ensure we don't count cancelled or duplicated in-app purchases forwarded from your app, we validate each purchase in the justtrack backend. To make this possible for Android apps, you must provide a credentials file for your Play Store service account. The service account provides an application (instead of a user) access to the Google Play Developer Publishing API. Using this access, we can accurately track purchases made by your users and display the correct revenue for your app.

Create a service account​

In the Google Play Developer Console, navigate to the Setup > API access settings page. Then, click Choose a project to link:

Granting API access to your Play Console account

Agree to the terms of service:

Agreeing to the Terms of Service

Select Link existing Google Cloud project and Google Play Console Developer from the drop-down. Then, click Save:

Linking with an existing Google Cloud project
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If you haven't created a Google Cloud project for your app already, you have to select Create a new Google Cloud project instead. After creating a new project, it should already be linked. If this isn't the case, you have to link it manually.

At the bottom of the page, click Create new service account and click the link to Google Cloud Platform from the dialog.

On the Google Cloud page, click Create Service Account:

Create a new service account for your project

Then, name your service account:

Creating a new service account

In the next step, select the Monitoring Viewer role:

Configure the service account

After creating the service account, select the account, go to the Keys tab and select ADD KEY > Create new key:

Create a new key for your service account

Create the key in JSON format:

Creating a new key for your service account

Once you create the key, it will be automatically downloaded to your computer. You'll upload this to the justtrack platform in a future step.

Grant the service account access to your apps​

After creating the service account, you need to grant it access permissions on the Google Play Console.

Navigate to API access. Here, you'll find your new service account. Next to it, click Manage Play Console permissions:

The service account is listed on the Google Play console

Now, give the service account the following permissions:

  • View app information and download bulk reports (read only)
  • View financial data, orders and cancellation survey responses
  • Manage orders and subscriptions

Then, click Invite user:

Setting up the correct permissions for your service account

Configure your service account in justtrack​

To get your in-app purchases verified and tracked by justtrack, you need to upload the JSON file you received when you created the key.

In justtrack, navigate to Admin > Apps:

Navigate to apps

Here, you'll find the list of apps connected to your justtrack account. Next to the app for which you want to verify purchases, click See Details.

Now, you're in the App Hub. From here, you can configure how you monetize your app.

On the Monetization card, click Manage Integration:

Manage monetization integrations

On the Monetization page, click Purchase Verification Credentials:

Purchase verification credentials

Here, you'll upload the JSON file you downloaded in a previous section. In the App Hub, you'll see an indication that you've successfully set up in-app purchase tracking.

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It can take up to 48 hours for the permissions you configured for your new service account to propagate through Google's internal systems. Therefore, it might take a while to see in-app purchase revenue for your app.

You can now start forwarding in-app purchases from the Android and Unity justtrack SDKs and you'll see the revenue you make from them on the justtrack dashboard.

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