Testing
Following successful development and integration, Participants are required to complete testing and certification activities to validate their DuitNow Pay implementation before production deployment. As illustrated in image below, Phase 3 Testing focuses on validating the end-to-end payment journey, system integration and operational readiness through PayNet's testing environments.
Image below illustrates the high-level onboarding and API integration journey for Participants implementing DuitNow Pay.

Testing activities are conducted progressively across the following environments:
| Environment | Purpose |
|---|---|
| Certification Centre (CC) | PayNet’s System Integration Testing (SIT) environment used to validate API integration, functional behaviour and business scenarios using the provided simulator and test suites. |
| System Verification (SyVe) | PayNet’s User Acceptance Testing (UAT) environment used to validate end-to-end transaction flows, merchant registration and production readiness. |
Participants are required to successfully complete all mandatory test scenarios and resolve any identified issues before proceeding to production deployment and go-live.