In sales (with command _cart), is using notify_url mandatory?

[pravinkk]

I am trying to implement sales using the command _cart and multiple items.

The question is - Can I safely rely on PayPal returning to the "return" address, I can treat it as a successful transaction?

Can I not mention any "notify_url" parameter?

[Chiranjeevi_L]

Good day @pravinkk,

Thank you for posting to the PayPal community.

notify_url : The URL to which PayPal posts information about the payment, in the form of Instant Payment Notification messages.

https://developer.paypal.com/api/nvp-soap/paypal-payments-standard/integration-guide/Appx-websitesta... 

PayPal will send the IPN payment notification messages, if merchant pass the notify_url parameter in your website API request call to PayPal system. 

The notify_url passed in your website button code/API request call will override the IPN feature settings mentioned in your PayPal account. 

Guide link for "Notify_URL" -  https://developer.paypal.com/docs/api-basics/notifications/ipn/IPNSetup/?mark=dynamicall#dynamically...

If merchant have already setup the IPN Notifications on PayPal, they can avoid pass the notify_url value in the website button code/API request call.

Sincerely,

Chiranjeevi

PayPal/Braintree MTS

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