Test your integration

Test with sandbox banks and Sandbox Tools before going live.

Sandbox

Create a Checkout Session in sandbox and visit the redirectUrl. Use the credentials below to test each flow.

Bank	Country	Currency	Schemes	Credentials	Instructions
Test Bank market	Any	Any	SEPA Credit, SEPA Instant	Username: `random` Password: `random` OTP: `random`	For success, enter any OTP. For failure, enter OTP = `666`.
Deutsche Bank Sandbox	DE	EUR	SEPA Credit, SEPA Instant	IBAN: `DE17215730140403340300` Account Holder Name: `random` Branch: `615` Account: `4033403`	€1 for success €100 for failure
KD Bank Sandbox	DE	EUR	SEPA Credit, SEPA Instant	IBAN: `DE39499999600000005111` Account Holder Name: `random` Customer ID: `VRK1234567890ALL` Password: `password` SCA method: `Mobile` SCA code: `123456`	For success, select any SCA method and use SCA code `123456` if prompted.
NatWest Sandbox	GB	GBP	Faster Payments	Username: `123456789012` Password: displayed on screen
BBVA Sandbox	ES	EUR	SEPA Credit, SEPA Instant	IBAN: `ES2501822200160201933547` Username: `user1` Password: `1234` SCA code: `123456`	To trigger failure, click Cancel → Aceptar in the bank UI.
Alior Sandbox	PL	EUR	Elixir, SEPA Credit	Username: `60370698` Password: `12345678`	Approve the payment in the bank interface — simulates delayed bank update.
PKO BP Sandbox	PL	EUR	Elixir, SEPA Credit	n/a	Use buttons in the bank UI to set the desired outcome (Sukces → success).

Create an order via API

The order starts in processing.

Open the order in the Dashboard

Find it in the Orders table.

Simulate funding

Status updates to paid and a webhook fires.

Simulation is not available with direct settlement enabled.

Switch to your live API keys once sandbox testing is complete.

Production uses real money. Start with small amounts.

Test case	Expected outcome
Successful payments from 4+ banks	Orders reach `paid` and webhooks are received.
Customer cancels at the bank	Order `failed` with `payment_abandoned` classification.
Insufficient funds	Order `failed` with `insufficient_funds`.