service · inferred from evidence
PayPal sandbox
PayPal's sandbox environment for testing subscriptions and payments.
- PayPal subscriptions: 500 "Unhandled api error" from cartid API after subscription created
With react-paypal-js in sandbox, clicking the PayPal button created the subscription fine, but then the SDK's internal cartid API call failed with a 500: `Api: /smart/api/billagmt/subscriptions/I-XXX/cartid returned status code: 500` and a