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🧾 API v1.2.1 – E-invoice Sandbox

v1.2.1 introduces the E-invoice Sandbox, where developers can go through the whole process of drafting, previewing and issuing invoices with simulated data before integrating with their production systems.

⚠️ Note: this is a simulation that uses mock data for API testing; it is not connected to the real tax system.

🌟 E-invoice Sandbox highlights​

An interactive tool for the E-invoice solution:

  • Many providers: try simulated invoice templates from popular providers (Viettel S-Invoice, HiLo, X-Cyber, MISA, BKAV).
  • Automatic template number & symbol: automatically loads the invoice-issuing accounts and the matching template numbers (VAT invoice, sales invoice).
  • Line items & calculation: issue to individuals or businesses; manage items, discounts and multiple VAT rates, with amounts calculated in real time.
  • Simulated draft & issue: try the draft invoice (/create) and issue invoice (/create-and-issue) APIs.
  • Live PDF preview: render the invoice PDF right in the browser through the /download API.
  • API Playground: generates the x-signature (HMAC-SHA512) automatically, and lets you view and copy the JSON request / response for your integration.