Body: I. Introduction With the rapid development of e-commerce, major platforms have launched promotional activities to attract consumers. As one of the leading e-commerce platforms in Southeast Asia, Shopee has attracted much attention for its 7.7 promotion activities. This article will analyze the effect and experience of this event from the perspective of Khmer users, combined with their shopping experience on Shopee, and at the same time understand the feedback of users in an all-round way through the evaluation on Reddit and Youtube. 2. The performance of 5PK in Shopee's 7.7 promotion activity In the Shopee 7.7 promotion, various brands and products launched discounts in the form of fierce competition, forming a shopping spree. In such an environment, the PK activities between brands are wonderful. As a unique shopping experience, 5PK allows consumers to choose their favorite products from a variety of products and enjoy preferential prices at the same time. In this link, both the participation of brands and the enthusiasm of consumers are fully mobilized. 3. The in-depth experience of Khmer users As an important user group in Southeast Asia, Khmer users have a high level of participation in the Shopee 7.7 promotion. Judging by their shopping experience, many users are satisfied with the scale of the campaign and the strength of the offer. Especially in the 5PK link, many users said that they were able to find their favorite products and buy them at very good prices. In addition, convenient payment and fast logistics are also highlights of this shopping experience. 4. Feedback on Reddit and Youtube On social media platforms such as Reddit and Youtube, many users have given positive comments about Shopee's 7.7 promotion. They believe that the promotions are strong and the products are rich and diverse. Especially in the 5PK session, many users say that it is a very attractive way to shop. At the same time, the communication and sharing on the platform also make users feel more fun in the shopping process. However, some users also mentioned some problems encountered in the shopping process, such as product quality, after-sales service, etc., which also provided valuable suggestions for the future development of the platform. 5. Summary In general, the 5PK link in Shopee's 7.7 promotion activity has been widely praised by users. The in-depth experience of Khmer users at this event showed that they enjoyed the joy of shopping and affordable prices. At the same time, reviews on social media platforms also reflect users' satisfaction with the event and expectations for the platform. For Shopee, this is not only a successful promotion, but also an opportunity to enhance the user experience and brand value. In the future, Shopee can further optimize the activity link, improve the quality of goods and after-sales service, so as to better meet the needs of users.