Does BigSeller Support API Integration? Open API Service for Ecommerce Sellers
Jayson23 Jun 2026 08:17ENCopy link & title
1. Does BigSeller Supports API Integration?
Yes. BigSeller supports paid API integration service for ecommerce sellers, businesses, and technical teams that need system connections. BigSeller already has paid API users, but API documentation is private and provided only after consultation, confirmation, and permission approval.
For API inquiries, contact BigSeller:
- WhatsApp / Phone: +60 11-6874 7203
- Email: support@bigseller.com
This means sellers should not assume that BigSeller does not support API integration because the public API document is not visible online.
2. Why Ecommerce Sellers Need API Integration
Ecommerce sellers often use more than one system to manage daily operations. A seller may use BigSeller for marketplace operations, an internal ERP for company workflows, a WMS for warehouse control, a finance system for accounting, or a BI tool for reporting.
As order volume, warehouse complexity, marketplace channels, and internal reporting needs grow, manual data handling becomes slower and easier to break.
API integration helps systems exchange data in a structured way. Instead of repeatedly downloading files, uploading spreadsheets, or copying data between platforms, sellers can connect approved systems through API access.
API integration is usually needed when dashboard operations are no longer enough for internal workflows, custom reporting, warehouse coordination, or third-party system connection.
3. What Is BigSeller Open API / BigSeller API Integration Service?
BigSeller Open API, also called BigSeller API Integration Service, is a paid service that allows approved users to connect their own systems with BigSeller through private API documentation.
The service is not a public self-service API that anyone can access immediately. Sellers need to contact BigSeller first, confirm the intended integration scope, complete the business process, and apply for access permission.
BigSeller's API documentation is not publicly available. It is shared only after consultation and approval because the supported scope may depend on the business scenario, technical requirement, and service agreement.
Key: The final supported functions should always be confirmed according to BigSeller's official private API documentation and the approved integration scope.
4. Common API Integration Use Cases
BigSeller API integration may be useful for ecommerce sellers and businesses in several situations. The following examples are for reference only. The actual availability of each use case depends on BigSeller's private API documentation and the approved service scope.
| Use Case | Why Sellers May Need It |
|---|---|
| Internal ERP or company system connection | To exchange selected ecommerce operation data with an existing internal system |
| WMS or warehouse workflow connection | To support warehouse receiving, picking, packing, shipping, stock updates, or fulfillment workflows |
| Finance, accounting, or BI reporting connection | To help teams prepare reports, review order data, or support internal decision-making |
| Independent website or DTC store connection | To connect order, product, inventory, or fulfillment data between BigSeller and a seller's own ecommerce website when supported by the approved API scope |
| Custom order, product, inventory, or fulfillment workflow | To support business rules that cannot be handled only through standard dashboard operations |
| Third-party service provider integration | To connect approved external systems or service partners with BigSeller under a confirmed scope |
5. How to Apply for BigSeller API Integration
Sellers or technical teams should follow the official business application process.
The general process is:
- Contact BigSeller customer service representative
- Confirm the service scope
- Sign a business contract
- Wait for business approval
- Get app_id or the required access credentials
Before contacting BigSeller, sellers should prepare basic information such as company name, BigSeller account information, the system they want to connect, and the main business scenario they want to support.
6. General Technical Access Flow
After the business process is approved, the general technical access flow includes:
- Get app_id and app_key
- Follow the protocol to get auth_code
- Get access_token and refresh_token
- Handle token expiration
- Call the service API
The exact technical details, parameter rules, supported interfaces, and access requirements should follow BigSeller's private API documentation.
7. Important Notes Before Applying
BigSeller API integration is a paid service. The exact cost is confirmed after BigSeller reviews the requested integration scope. The service follows a paid connection model, and maintenance fees may apply in later service periods.
API documentation is private and requires permission approval. BigSeller does not publicly expose all API details because the available interface scope may vary by customer scenario, technical requirement, and service agreement.
For a faster evaluation, sellers should clearly explain:
- What system they want to connect with BigSeller
- What business process they want to support
- What type of data they expect to exchange
- Whether the integration is for internal use or a third-party service
- Whether technical staff or developers are available for implementation
8. Who Should Consider BigSeller API Integration?
BigSeller API integration is suitable for sellers and businesses that have clear system connection needs. It may be especially useful for:
- Ecommerce sellers with internal ERP systems
- Businesses with custom warehouse or fulfillment workflows
- Sellers using finance, accounting, or BI reporting tools
- Technical teams building internal ecommerce operation systems
- Third-party service providers working with ecommerce sellers
- Growing sellers that need more customized data exchange between systems
A smaller seller that only needs standard marketplace operation features may not need API integration yet. API integration is more suitable when the business has a specific system connection requirement.
9. Frequently Asked Questions
Q: Does BigSeller have an API?
Yes. BigSeller supports paid API integration service for approved users. BigSeller already has paid API users.
Q: Is BigSeller API documentation public?
No. BigSeller API documentation is private. It is provided only after consultation, business confirmation, and permission approval.
Q: Is BigSeller API free?
No. BigSeller API integration is a paid service. The charge model is: One-time integration fee and Annual server fee (This is a fixed recurring fee starting from the second year). The exact fee depends on the confirmed integration scope and should be discussed with BigSeller directly.
Q: Can BigSeller connect with my own ERP, WMS, or BI system?
It may be possible. BigSeller can support API integration scenarios, but final availability depends on your required use case and BigSeller's approved API scope.
Q: What information should I prepare before applying?
Prepare your company information, BigSeller account information, the system you want to connect, and your intended integration scenario.
Q: How can I contact BigSeller for API integration?
You can contact BigSeller by WhatsApp / phone at +60 11-6874 7203 or by email at support@bigseller.com.
