The Customer Support Identifier (CSI) number is generated after you purchase Oracle Cloud services. This number is present in your contract document and also in Infrastructure Classic Console or Applications Console.
You’ll need the CSI number to register and log support requests in My Oracle Support (MOS).
Sign in to Applications Console or Infrastructure Classic Console.
Sign in to Infrastructure Classic Console if you want to access Oracle Cloud infrastructure and platform services. If you see Infrastructure Classic at the top of the page when you sign in to Oracle Cloud, then you are using Infrastructure Classic Console and your subscription does not support access to the Infrastructure Console.
Click (Help) from the top of Infrastructure Classic Console or Applications Console.
You’ll find the CSI number below the Create Service Request link.