sessionIDn
sessionIDn is a generic placeholder used in documentation and code to denote the session identifier for the nth active session in a system. It is not a fixed standard term, but a common naming pattern where n is an integer index. In web applications, a session ID identifies a sequence of requests associated with a single user interaction session. When multiple sessions are tracked simultaneously—for example, a user logged in on several devices, or a system manages multiple sessions per process—the identifiers are typically denoted as sessionID1, sessionID2, sessionID3, etc., to distinguish them programmatically.
Typical characteristics include that session IDs are opaque tokens, not interpretable by clients; they are usually
In distributed systems, sessionIDn can help correlate events across services, enabling traceability, auditing, or user activity
Related concepts include session token, cookie, and authentication session. The exact syntax and storage location of