Wepay’s stage server and main production site are independent environments and have separate databases. The stage server does not process or move "real" money and utilizes our testing credentials for development. The production site is used to onboard merchants and process their payments. All API objects (account_ids, user_ids, application_ids, application tokens, etc.) are unique to the environment they were created on. Each environment has its own set of endpoints, as well.
After you test your application on stage and are ready to launch, you will need to create a new application on production. Please be sure to read through our suggestions for moving from stage to production.