How to test Toss Payment Widget in test environment without a real bank account?

Hello Toss team,

I'm currently integrating Toss Pay using your payment widget and would like to test the payment flow in the test environment. However, it seems like I’m being asked to enter a real domestic bank account even in test mode (as shown in the screenshot attached).

I have reviewed your documentation, but couldn't find any information about test accounts or sandbox data for simulating the payment process using Toss Pay (especially for methods like quick transfer, credit card, etc.).

Right now, I can only test with virtual account payments, but not with Toss Pay or other methods.

Could you please clarify:

1. Is there a way to test Toss Pay (e.g., quick transfer, card payments) without a real bank account?
2. Are there any test user credentials or sandbox payment flows available?
3. Is this the expected behavior in test mode, or am I missing some configuration?

Thank you in advance!

Best regards,
Trey
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