Once you have been onboarded to the Commerce Platform you will receive an Email with your credentials for the first login.
After your first login you will have to provide a new password.
You can access Payone Commerce Platform PRE-Production via following URL:
Pre-Production Commerce Portal
After you complete testing on Pre-Production environment and all prerequisited are ready - you will be onboarded to Production environment.
You can access Payone Commerce Platform Production via following URL