You can offer discounted rates to users when they buy 2 or more books at a time. You can create up to 3 “discount tiers” per campaign where the more books users purchase, the greater the discount.
Bundle discount eligibility
Tip: Books must be included in a series to qualify for bundle discounts. Learn more about series.
For a series to be eligible for bundle discounts, the books in the series must meet these criteria:
- The series must be live on Google Play.
- Books in a series must have complete metadata. Series can't have any gaps or duplicate series numbers.
- The series must contain at least 2 books. Pre-orders aren’t eligible.
- The average price of a book in a series must be less than $20 USD.
- Books in the series must be from the same publisher partner center account.
- Books must be in one series.
- Ebooks and audiobooks are eligible.