Getting Started 
Environment Setup 
Before you begin, make sure you have completed the Set Up Test Environment step.
| Test | https://p-gate-uat.checus.com/aggregate-pay/api/gateway/<PATH> | 
| Production | https://pay-gate-hk-prod.checus.com/aggregate-pay/api/gateway/<PATH> | 
Integration Steps 
1. Dispute Async Notification 
When Checus risk control operations perform any of the following actions, the system will push async notifications to merchants through the Dispute Async Notification/chargeBaclNotifyUrl :
- Initiate retrieval request
- Deliver judgment results
- Close case
Callback Address Configuration
Log in to Merchant Management Platform to configure callback address, path: 'Settings' > 'Config'. 
2. Case Status Query 
When Checus risk control operations initiate retrieval, update judgment, or close cases, you can use the Case Query/caseSearch to actively query case status.
Case Status Description
| Status | Description | 
|---|---|
| DISPUTE_INQUIRY | Retrieval Pending: Waiting for merchant feedback and evidence submission | 
| DISPUTE_RECEIVED | Evidence materials received | 
| DISPUTE_END | Retrieval Complete: Issuing bank reviewed appeal and made judgment | 
| CASE_CLOSED | Case closed | 
| CASE_CANCEL | Case cancelled | 
3. Retrieval Response 
After receiving a retrieval request initiated by Checus, you can submit order-related supporting materials through the Case Reply/caseReplay .
