Hello @PeterKhaled ,
Thank you for posting to the PayPal Community.
The best way to receive immediate notifications is to use webhooks. Webhooks send a notification to your listener url.
Here are the details:
https://developer.paypal.com/api/rest/webhooks/rest/
Here is information on how to subscribe to Webhook Events:
https://developer.paypal.com/api/rest/webhooks/rest/#link-subscribetoevents
If you would like to test Webhooks in sandbox, https://webhook.site can give you a test webhook listener, which will allow you to see how it works.
Thank you,
Jennifer
MTS
PayPal
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