Sandbox, webhooks, Elements versus direct API, and integration checklist for Airwallex developers.
Developer onboarding works best as a checklist: create sandbox credentials, call a happy-path payment or payout, verify webhook signatures, then expand corridors and methods under monitoring.
Choose Elements when you want faster checkout UI with less PCI scope; choose direct APIs when you need custom UX or platform orchestration across connected accounts.
Continue with API Reference, Product Documentation, and Platform APIs / Embedded Finance pages for architecture context.
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