---
id: invoice-query-compliance-boundary
trigger: "when proposing an in-app view of all invoices associated with a consumer carrier"
confidence: 0.9
domain: "business-rule"
source: "claude-code-memory-import"
---

# Respect the Taiwan invoice-query compliance boundary

## Action

- Do not assume ezPay's issuance API can query a consumer's society-wide carrier invoices.
- Treat Ministry of Finance consumer query APIs as a separate integration requiring ISO 27001, consumer carrier credentials, consent, audit retention, and renewed authorization.
- Prefer showing invoices issued by this platform from `pos_order_invoice` and linking users to the official invoice service unless the compliance project is explicitly approved.

## Evidence

- Imported from Claude Code reference memory `reference-tw-einvoice-query-api.md` on 2026-08-10.
