If you have a Branded Mobile Application and want to set up in-app purchases for single issues, you'll use a unique Product ID for each issue you intend to sell.
First, set up in-app purchases for single issues on your App Store and/or Google Play developer accounts. Once done, copy the Product IDs from those platforms and enter them in Joomag.
To enter the Product ID for a single issue:
Go to My Publications and open the publication settings.
Click the Mobile App tab.
Under In-App Purchases, enter the Product ID from App Store and/or Google Play.
Click Save.