Seller Documentation

For seller business system integration, covering authorization, products, inventory, orders, messaging, after-sales, and order status callbacks.

Production Environment

Property	Value
Base URL	https://paas-gateway.imetastore.io/merchant-api
Protocol	HTTPS
Data Format	JSON

Authentication

Scenario	Method	Description
Business APIs	Bearer Token	Authorization: Bearer <accessToken>
Order Callbacks	HMAC-SHA256	Verify signature using the platform-assigned secretKey

API Reference

Authentication

Endpoint	Method	Description
Login Authorization	POST	Obtain a business API access token

Product Management

Endpoint	Method	Description
Get Product List	POST	Query product list with filters
Product Listing/Delisting	PUT	Batch update product listing status
Update SKU Inventory	PUT	Update SKU stock quantity
Update SKU Price	PUT	Update SKU price

Order Management

Endpoint	Method	Description
Get Order List	POST	Query order list by conditions
Submit Delivery	POST	Submit delivery information
Get Delivery Details	GET	Get delivery records for an order
Submit Delivery Error	POST	Report delivery error
Get Delivery Error Details	GET	Get delivery error records

Messaging

Endpoint	Method	Description
Send IM Message	POST	Send a message to a buyer
Get IM Contact List	POST	Get buyer session list
Get IM Messages	POST	Get message history with a buyer

After-sales

Endpoint	Method	Description
Submit Approval	POST	Approve or reject a refund request
Get After-sales Details	GET	Get after-sales details for an order

Callback Notifications

Endpoint	Method	Description
Order Status Callback	POST (platform push)	Platform notification when order status changes

Quick Navigation

• Getting Started — Integrate with the Seller API from scratch
• Callback Overview — Callback notification mechanism
• Integration Checklist — Complete pre-launch checklist