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Adding the Przelewy24 payment button
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Presentation
Technical information
Prerequisites
Payment process
Transaction settlement
Establishing interaction with the payment gateway
Setting up notifications
Setting up the Instant Payment Notification
Setting up a notification on batch change
Generating a payment form
Creating a Przelewy24 payment request
Sending the payment request
Redirecting the buyer to the payment page
Processing errors
Analyzing the payment result
Processing the response data
Analyzing the result of the authorization request
Making a refund via the Merchant Back Office
Obtaining help