This recognition places BigSeller at the very top of the 15 leading ISVs in the region, demonstrating its strong technical capabilities, API performance, and deep adoption among local sellers across Southeast Asia.

A New Era of ISV Management in SEA

As TikTok Shop rapidly expands in SEA, the platform now requires stronger, faster, and more localised technological partners. The newly launched ISV hierarchy categorises vendors into three tiers: Class S, Class A, and Class B, based on:

• Number of sellers connected

• Daily API call volume

• Technical readiness

• Ability to support new TikTok Shop business models

• Localisation and multi-region compliance

• Responsiveness and product innovation

Among all ISVs evaluated, BigSeller achieved the highest ranking, securing the #1 position in the Class S list.


 

What Being a Class S ISV Means for BigSeller

As a top-tier Class S ISV, BigSeller receives exclusive platform privileges, including:

1. Early Access & Priority Testing

BigSeller gains first access to new TikTok Shop features, API interfaces, and tools, allowing it to deliver updates to sellers earlier than others.

2. Exclusive Platform Capabilities

TikTok Shop grants specific high-level functions and higher QPS limits, enabling faster syncing, smoother integrations, and better automation.

3. Platform Endorsement

BigSeller receives official recognition from TikTok Shop and may be featured in platform-led promotions, training, and seller education programs.

4. Badge Recognition

A “Top ISV” badge will be displayed in the TikTok Shop App Store, signaling trust and reliability for sellers choosing a solution provider.

5. Direct Communication Channels

BigSeller’s team participates in high-level communication groups and receives dedicated support from TikTok Shop for projects, feedback, and feature alignment.

Why BigSeller Achieved the #1 Spot

Since launching in 2019, BigSeller has grown into one of the most widely used e-commerce ERPs in Southeast Asia. Its position in the Class S list is supported by:

• High number of active seller connections: Sellers across Malaysia, Indonesia, Thailand, Vietnam, and the Philippines rely on BigSeller for daily operations.
• Strong daily API call performance: BigSeller demonstrates excellent system stability and high API integration depth with TikTok Shop.
• Rapid adaptation to platform updates: BigSeller consistently updates its features in parallel with TikTok Shop’s ecosystem changes.
• Full localisation capabilities: It supports multi-language content, multi-market operations, compliance adaptation, and localised seller workflows.

BigSeller: The All-In-One ERP for SEA Sellers

BigSeller continues to be one of the most trusted tools for Shopee, Lazada, and TikTok Shop sellers, offering a comprehensive set of features:

1. Product Management

• Bulk import, sourcing, and multi-store listing

• Auto-pinning, auto-relisting, and promo scheduling

• Image editing, watermarking, and translations

2. Order Management

• Unified order syncing

• Batch printing & barcode-supported fulfillment

• Real-time logistics tracking

• Return/refund handling

3. Inventory Management

• Real-time multi-platform stock sync

• Overselling prevention

• Wave picking and warehouse optimisation

• Smart restocking recommendations

4. Marketing Tools

• Multi-platform campaign setup

• Auto watermark removal for promos

• Automated review reply rules

5. Reporting & Analytics

• Profit & sales dashboards

• Inventory turnover insights

• Logistics fee and performance tracking

• Financial integrations (Accurate, SQL, MISA)

6. Mobile App

• Mobile order fulfillment

• On-the-go stock updates

• Real-time sync with the web version

7. Local Support Across SEA

• 6-day customer service (12 hours daily)

• English, Chinese, Indonesian, Vietnamese, Thai support

• Local offices in Malaysia, Indonesia, Thailand, Vietnam & Philippines

• Online/offline training sessions

This wide feature coverage and strong localisation are a major reason BigSeller earned TikTok Shop's highest-tier classification. For businesses looking to simplify daily operations or strengthen their multi-platform workflow, BigSeller offers a practical starting point.

Try BigSeller for free today and experience why it’s the #1 ISV in Southeast Asia.