The method to set up cashback for positive reviews on Doudian is as follows

1. Log in to the backend of Douyin Store and enter [Marketing Center] - [Marketing Tools] - [Coupon].

2. Create a new coupon: Click the [Create a new batch coupon] button on the coupon page and select the coupon issuance method and type.

3. Set the required items for the coupon: including the coupon name, type, discount strength, collection period (date range), usage time, issuance quantity, and the number of coupons per person.