etappid

etappid is a term encountered in software engineering and platform documentation as an identifier assigned to an application within a larger service. It functions similarly to an app ID or client ID, providing a stable reference to a single application for authentication, telemetry, and integration with APIs. The exact meaning and scope of an etappid can vary by platform; some systems use etappid as a primary, globally unique string, while others treat it as a component of a broader credential set.

In practice, an etappid is used to authorize requests, enable access control, and associate usage data with the correct application. It may be issued during application registration and stored by the client, server, or identity provider. The format can range from numeric IDs to UUIDs or URL-like strings, and validation rules depend on the issuing system. For developers, the key considerations are keeping the etappid confidential when it functions as part of a credential, ensuring it is included in appropriate API calls, and linking it to the correct application configuration.

Because etappid is not a universal standard, references to it are typically found in vendor-specific documentation or community discussions rather than formal specifications. When encountered, it is useful to compare with related concepts such as app ID, client ID, API key, and OAuth client credentials to determine its exact role in a given ecosystem.