How does it work?

1. Customer opens your webshop, adds some items to the shopping basket, and clicks on 'Proceed to Checkout'.
2. Customer lands on your own checkout, and selects Credit Card.
3. Customer lands on your Credit Card page, fills in the card details and clicks on submit (card details must be client-side encrypted before submitting them).
4. After creating a Credit Card transaction (using the submitted encrypted card details) with the create Credit Card transaction endpoint, you redirect the customer to the provided URL.
5. The customer completes the payment process, you receive a webhook (if you configured it for your iDEAL transaction), and the customer is redirected to the Return URL(s) you specified on your iDEAL transaction.
6. You make a request to the get Credit Card transaction endpoint, and use its latest details to update your system.

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When using webhooks, be aware that they are only a "best effort" mechanism. Find more details here.