Physical goods transactions with merchant-managed payment
If you have your own online storefront, have users perform Account Linking and they can purchase your physical goods using payment methods they've already saved with your store.
Let users reserve your services through the Google Assistant. Set up transactions for a user to reserve a seat at your restaurant, a room at your hotel, or other reserved services you may offer.
Non-consumable digital goods transactions
If you offer in-app purchases for an Android app or want to gate some of your Action's features behind a one-time payment, sell your Google Play managed products using the Google Assistant.
Consumable digital goods transactions.
If you have an Android or Assistant game with a "freemium" pricing model, sell your consumable game currency or other Google Play managed products using the Google Assistant.
Digital subscription transactions
Sell your Google Play store subscriptions, such as digital magazine subscriptions or premium features in your Action or Android app, using the Google Assistant.