in the application I'm developing, you can buy additional features. After uninstalling the application, the general settings disappeared. How can I verify that I purchased inApp-Product after a new installation.
Thanks in advance!
You must use the Restore Transactions request to get billing information. More details here .
you must use recovery transaction.if use recovery transaction, but your products must be MANAGED. https://groups.google.com/forum/?fromgroups=#!topic/android-developers/sjGejJAF7FM