@Gus_fring This post might be interest of you:
To understand about Tenant:
“Tenants” is a term for a group of users or software applications that all share access to the hardware through the underlying software. Multiple tenants on a server all share the memory, which is dynamically allocated and cleaned up as needed. They also share access to system resources, such as the network controller.
So tenant-id is used to uniquely identify the clients and also useful in performing CRUD operations for specific tenant. Each tenant’s data is isolated and remains invisible to other tenants.