HI, I'm trying to integrate recurring payments with PayPal into one of my projects. I found this code which seems to work correctly for what I need https://www.codexworld.com/paypal-subscriptions-payment-gateway-integration-php/ However, I don't understand how to manage PayPal notifications in these cases: - managing of the renewal, i.e. whether the renewal payment was successful or not - if a customer who has signed up for periodic payments cancels the subscription from the PayPal portal I already save the activation, expiration date and others info at the time of the first payment (see https://ibb.co/2qyKncX) What I don't understand is how PayPal sends the renewal notification (ipn). From what I have read, but I don't understand much, PayPal sends a notification to the site via ipn every time the weekly/monthly fee is deducted from the customer's account based on the plan subscribed to. But I didn't understand where it sends it and how I can process the data to update the customer's subscription. Thanks a lot Daniele
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