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The CryptoProcessing payment request webpage may include a Return to merchant link with a URL that you provide. It is good practice to use these webpages to inform the customer about the successful purchase or let them retry a failed one. This customization is only available when creating a payment request via the API endpoint. You can provide different webpages for different states of the process via the url_store, url_success and url_failed parameters.
url_storeurl_successurl_failed
It is not guaranteed that the customer will click the link. Instead, they may immediately close the tab with the CryptoProcessing interface after sending the transaction. The only reliable way to get notified about the payment request status is to process API callbacks.

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url_store

The url_store link will be shown under the payment request form while it is still processing (neither successful nor cancelled). This URL is also used as the default value for url_success and url_failed in case you don’t specify them.

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url_success

The url_success link will be used for the button on the final screen of the payment request interface. A customer only sees this button when they successfully completed the payment request. Your site will have already received the Payment request paid callback.

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url_failed

The url_failed link will be used for the button on the ‘Payment request expired’ screen. A customer only sees this button when they failed to fulfill the requested amount within the lifespan. Your site will have already received the Payment request failed callback.
Last modified on June 15, 2026