Direct Answer: When targeting cross-border e-commerce, Shopee and Mercari offer entirely different advantages. Shopee is ideal for large-scale B2C operations targeting the massive Southeast Asian market, while Mercari dominates Japan's domestic C2C space, making it perfect for peer-to-peer trading and used goods with its 20 million active users.
Automating Customer Support with ChatGPT
AI chatbots enable 24/7 customer support while significantly reducing labor costs.
Benefits
- 24/7 availability: Instant responses to after-hours inquiries
- Multilingual: Simultaneous support in Japanese, English, Chinese, Vietnamese
- Cost reduction: Cut labor costs by up to 50%
- Consistent quality: Always accurate and consistent answers
Implementation Approach
1. FAQ auto-response: Store FAQs in a vector database, auto-answer similar questions.
2. Order status: Enter order number to retrieve real-time delivery status from OMS.
3. Escalation: Automatically hand off to human operators when AI cannot resolve.
E-Commerce Chatbot Examples
- "When will my order arrive?" → Fetch delivery status from tracking API
- "I want to return this" → Share return policy and send procedure URL
- "Is this available in another size?" → Search product DB for inventory
DONOMI provides AI chatbot consulting and development for e-commerce businesses.
Q: What are Shopee's main target markets?
A: Its primary markets encompass Southeast Asia, including Singapore, Malaysia, Thailand, Vietnam, and Taiwan.
Q: How much are the seller fees on Mercari?
A: Mercari charges a flat commission fee of 10% on the final sale price.
Q: Which platform is better for selling used goods?
A: Mercari is much better suited, as it is a dedicated C2C platform with a massive established used goods market.

