This glossary defines key terms and concepts related to LivePerson Functions V2.

Term Definition
Activity Stream A log of account-level changes, such as function creation, modification, and deployment.
Alerting A feature that monitors function metrics and notifies users when thresholds are breached.
Authorization Server (Sentinel) The service that validates credentials and issues access tokens for external invocations.
Automatic Messages Predefined messages triggered by specific events during a conversation's lifecycle (also known as System Messages).
Cold Start The latency experienced when a new function instance is spawned after inactivity.
Concurrency The handling of multiple simultaneous requests; V2 uses one request per instance.
Conversation Builder LivePerson's low-code platform for building bots, which can integrate with Functions for custom logic.
Conversational Command A feature allowing agents to invoke functions directly from the Agent Workspace using a slash command (e.g., /command).
CRON Expression A standard syntax used to define the frequency and timing of scheduled function invocations.
Deployment The process of promoting a function version to the production environment.
Direct Invocation Triggering a specific function using its unique identifier (UUID).
Environment Variable A configuration value accessible by the function at runtime.
Event A notification that a certain action has occurred, which can trigger a function.
Event Invocation Triggering all productive functions that are registered to listen for a specific event.
Event Source The origin system that raises an event (e.g., Conversational Cloud).
External Invocation Invoking functions from systems outside of LivePerson via the Invocation Gateway; can be performed as either a direct or an event invocation.
FaaS-Admin A user role with full administrative privileges, including secret management.
FaaS-Developer A user role with permissions to develop, deploy, and manage functions.
FaaS-Invocation A user role restricted to invoking functions, typically assigned to agents.
Function A single unit of code that can be executed. It is triggered by an event.
Functions CLI The Command Line Interface for developing and managing functions.
Hook An interception point (Pre, Post, or Error) in a Third-Party Bot connector where a function can modify data or handle errors.
Invocation A single execution of a function.
Invocation Gateway The API endpoint entry point for external function invocations.
Invocation Histogram A chart displaying the volume and status of function executions over time.
LPClient A client library within the Toolbelt for easily accessing LivePerson APIs.
Messaging Event A specific category of events within Functions that corresponds to state changes in a conversation (e.g., New Conversation, Idle).
Metric A measurable data point (e.g., error rate, execution time) used for monitoring and alerting.
Orchestrator Function A design pattern where a single "parent" function invokes and manages multiple "child" functions to achieve complex workflows.
Payload The data sent to a function during an invocation, accessible via the input object.
Provisioning The initial setup process to enable the Functions environment.
RequestId A unique identifier assigned to each function invocation for tracking and debugging.
Sanitization The process of automatically redacting sensitive information from logs.
Secret A secure way to store and access sensitive information like API keys.
Secret Client A utility within the Toolbelt for retrieving secrets at runtime.
System Secret Automatically generated secrets used for internal service communication; their direct use is discouraged.
Third-Party Bot A bot managed via Conversational Cloud that can be integrated with Functions for custom logic or hooks.
Threshold A defined limit for a metric that, when crossed, triggers an alert.
Toolbelt A set of pre-packaged utilities to simplify development.
Trigger The mechanism (Event or Direct) that initiates a function execution.
UUID The unique identifier for a function, used for direct invocations.