How do I test Paypal subscription buttons with sandbox?

Question

after 5 hours of research and reading outdated paypal documentation I finally give up!

I need to test a simple paypal subscription button with the paypal sandbox.

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Answer 1

The problem is that you've generated a 'hosted' PayPal button in the live PayPal website, but you're sending this data to the Sandbox.
Since the hosted_button_id isn't recognized in the Sandbox, it returns an error.

You'd need to either:

• Create a non-hosted button, and change the 'action' and 'business' parameters to match Sandbox details
• Create a new 'hosted' button in Sandbox via www.sandbox.paypal.com > Profile > PayPal Buttons.

TL;DR: Sandbox is 100% separated from the Live PayPal website. A hosted button generated in Live, doesn't work in Sandbox.