There are three URLs listed on the endpoint of the specification. Which one should I use? June 28, 2022 09:27 Updated Test environment: Sandbox server Production environment: Production server Please do not use the Staging server. Related articles In what units merchantPaymentId needs to be unique? Is there any difference in a webhook to be received depending on balance block setting? Can I use the PayPay app in a test environment? Comments 0 comments Please sign in to leave a comment.