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Documentation Index

Fetch the complete documentation index at: https://developers-sandbox.uqpaytech.com/llms.txt

Use this file to discover all available pages before exploring further.

If your UnionPay QR code payment attempt failed outside mainland China, the issue likely stems from using the wrong QR code format. To resolve this:
  1. Open the UnionPay app.
  2. Navigate to Pay & Receive.
  3. Access More Settings.
  4. Select Switch to non-Chinese mainland payment.
This generates a QR code compatible with transactions outside the mainland region.