Hello.

Unfortunately, you are right. I tried to configure the PayPal API and pay for the subscription. I've got the same results: https://github.com/unacms/UNA/issues/5021 Looks like something was changed on PayPal end and we need to update our integration.

Also do I have to manually create Subcription plans in my Paypal Sandbox account for recurring payments, the way we do it with Stripe?

No, you shouldn't create a subscription manually on PayPal end. At least it was so, when we created the integration.

Thanks for the report!